Merge pull request #204 from Pouzor/chore/bump-2.5.0

chore: bump version to 2.5.0

.github/workflows/docker-ci.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   smoke-and-integration:
     runs-on: ubuntu-latest

.github/workflows/quality.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   lint-scripts:
     runs-on: ubuntu-latest

.github/workflows/security.yml

@@ -8,6 +8,9 @@ on:
   schedule:
     - cron: '0 9 * * 1'  # Weekly on Monday
 
+permissions:
+  contents: read
+
 jobs:
   secrets-scan:
     runs-on: ubuntu-latest

.gitignore

@@ -46,6 +46,7 @@ htmlcov/
 *.db-shm
 *.db-wal
 *.db.back
+*.db.back-*
 
 # Docker
 .docker/

VERSION

@@ -1 +1 @@
-2.4.0
+2.5.0

backend/app/api/routes/settings.py

@@ -1,20 +1,27 @@
 """App-level settings (status checker interval, etc.)."""
 from fastapi import APIRouter, Depends, HTTPException
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 from app.api.deps import get_current_user
 from app.core.config import settings
+from app.core.scheduler import reschedule_service_checks, set_service_checks_enabled
 
 router = APIRouter()
 
 
 class AppSettings(BaseModel):
     interval_seconds: int
+    service_check_enabled: bool = False
+    service_check_interval: int = Field(default=300, ge=30)
 
 
 @router.get("", response_model=AppSettings)
 async def get_settings(_: str = Depends(get_current_user)) -> AppSettings:
-    return AppSettings(interval_seconds=settings.status_checker_interval)
+    return AppSettings(
+        interval_seconds=settings.status_checker_interval,
+        service_check_enabled=settings.service_check_enabled,
+        service_check_interval=settings.service_check_interval,
+    )
 
 
 @router.post("", response_model=AppSettings)
@@ -23,7 +30,13 @@ async def update_settings(
 ) -> AppSettings:
     try:
         settings.status_checker_interval = payload.interval_seconds
+        settings.service_check_enabled = payload.service_check_enabled
+        settings.service_check_interval = payload.service_check_interval
         settings.save_overrides()
+        # Apply the service-check schedule live.
+        set_service_checks_enabled(payload.service_check_enabled)
+        if payload.service_check_enabled:
+            reschedule_service_checks(payload.service_check_interval)
         return payload
     except Exception as exc:
         raise HTTPException(status_code=500, detail=str(exc)) from exc

backend/app/api/routes/status.py

@@ -1,3 +1,4 @@
+import contextlib
 import json
 
 from fastapi import APIRouter, WebSocket, WebSocketDisconnect
@@ -10,6 +11,12 @@ router = APIRouter()
 _connections: list[WebSocket] = []
 
 
+def _drop(websocket: WebSocket) -> None:
+    """Remove a connection if still present — idempotent, never raises."""
+    with contextlib.suppress(ValueError):
+        _connections.remove(websocket)
+
+
 @router.websocket("/ws/status")
 async def ws_status(websocket: WebSocket) -> None:
     # Accept first so we can send a close frame with a reason code
@@ -33,7 +40,11 @@ async def ws_status(websocket: WebSocket) -> None:
         while True:
             await websocket.receive_text()
     except WebSocketDisconnect:
-        _connections.remove(websocket)
+        pass
+    finally:
+        # Any error (disconnect or otherwise) must release the slot, else the
+        # dead socket lingers in the broadcast pool.
+        _drop(websocket)
 
 
 async def _broadcast(payload: str) -> None:
@@ -41,7 +52,7 @@ async def _broadcast(payload: str) -> None:
         try:
             await conn.send_text(payload)
         except Exception:
-            _connections.remove(conn)
+            _drop(conn)
 
 
 async def broadcast_status(node_id: str, status: str, checked_at: str, response_time_ms: int | None = None) -> None:
@@ -54,6 +65,15 @@ async def broadcast_status(node_id: str, status: str, checked_at: str, response_
     }))
 
 
+async def broadcast_service_status(node_id: str, services: list[dict[str, object]], checked_at: str) -> None:
+    await _broadcast(json.dumps({
+        "type": "service_status",
+        "node_id": node_id,
+        "services": services,
+        "checked_at": checked_at,
+    }))
+
+
 async def broadcast_scan_update(run_id: str, devices_found: int) -> None:
     await _broadcast(json.dumps({
         "type": "scan_device_found",

backend/app/core/config.py

@@ -51,6 +51,10 @@ class Settings(BaseSettings):
     # Status checker
     status_checker_interval: int = 60
 
+    # Per-service status checker (independent of node checks). Off by default.
+    service_check_enabled: bool = False
+    service_check_interval: int = 300
+
     # MCP service key — set MCP_SERVICE_KEY in .env
     # Used by the MCP server to authenticate against the backend without a user password.
     # Leave empty to disable MCP service key auth.
@@ -77,6 +81,10 @@ class Settings(BaseSettings):
                 self.scanner_ranges = data["scanner_ranges"]
             if "status_checker_interval" in data:
                 self.status_checker_interval = int(data["status_checker_interval"])
+            if "service_check_enabled" in data:
+                self.service_check_enabled = bool(data["service_check_enabled"])
+            if "service_check_interval" in data:
+                self.service_check_interval = int(data["service_check_interval"])
         except Exception:
             pass
 
@@ -86,6 +94,8 @@ class Settings(BaseSettings):
         self._override_path().write_text(json.dumps({
             "scanner_ranges": self.scanner_ranges,
             "status_checker_interval": self.status_checker_interval,
+            "service_check_enabled": self.service_check_enabled,
+            "service_check_interval": self.service_check_interval,
         }))
 
 

backend/app/core/scheduler.py

@@ -9,7 +9,7 @@ from sqlalchemy import select
 from app.core.config import settings
 from app.db.database import AsyncSessionLocal
 from app.db.models import Node
-from app.services.status_checker import check_node
+from app.services.status_checker import check_node, check_services
 
 logger = logging.getLogger(__name__)
 
@@ -73,6 +73,50 @@ async def _run_status_checks() -> None:
     ])
 
 
+def _node_host(ip: str | None, hostname: str | None) -> str | None:
+    """Pick the address to probe services on: first IP, else hostname."""
+    if ip:
+        first = ip.split(",")[0].strip()
+        if first:
+            return first
+    return hostname or None
+
+
+async def _run_service_checks() -> None:
+    """Check every service of every node and broadcast per-service results."""
+    if not settings.service_check_enabled:
+        return
+    from app.api.routes.status import broadcast_service_status  # avoid circular import
+
+    async with AsyncSessionLocal() as db:
+        result = await db.execute(select(Node))
+        nodes = result.scalars().all()
+        checkable = [
+            (n.id, _node_host(n.ip, n.hostname), list(n.services or []))
+            for n in nodes
+            if n.services
+        ]
+
+    now = datetime.now(timezone.utc).isoformat()
+    for node_id, host, services in checkable:
+        try:
+            statuses = await check_services(host, services)
+            await broadcast_service_status(node_id=node_id, services=statuses, checked_at=now)
+        except Exception as exc:
+            logger.error("Service checks failed for node %s: %s", node_id, exc)
+
+
+def _add_service_check_job() -> None:
+    scheduler.add_job(
+        _run_service_checks,
+        "interval",
+        seconds=settings.service_check_interval,
+        id="service_checks",
+        max_instances=1,
+        coalesce=True,
+    )
+
+
 def start_scheduler() -> None:
     global scheduler
     if scheduler.running:
@@ -89,6 +133,8 @@ def start_scheduler() -> None:
         max_instances=1,
         coalesce=True,
     )
+    if settings.service_check_enabled:
+        _add_service_check_job()
     scheduler.start()
     logger.info("Scheduler started — status checks every %ds", settings.status_checker_interval)
 
@@ -104,6 +150,31 @@ def reschedule_status_checks(interval_seconds: int) -> None:
     logger.info("Status checks rescheduled to every %ds", interval_seconds)
 
 
+def reschedule_service_checks(interval_seconds: int) -> None:
+    """Update the service-check interval on the running scheduler (if enabled)."""
+    if interval_seconds < 30:
+        raise ValueError(f"interval_seconds must be >= 30, got {interval_seconds}")
+    if not scheduler.running:
+        logger.warning("Scheduler not running, skipping reschedule")
+        return
+    if scheduler.get_job("service_checks"):
+        scheduler.reschedule_job("service_checks", trigger="interval", seconds=interval_seconds)
+        logger.info("Service checks rescheduled to every %ds", interval_seconds)
+
+
+def set_service_checks_enabled(enabled: bool) -> None:
+    """Add or remove the service-check job on the running scheduler."""
+    if not scheduler.running:
+        return
+    job = scheduler.get_job("service_checks")
+    if enabled and not job:
+        _add_service_check_job()
+        logger.info("Service checks enabled — every %ds", settings.service_check_interval)
+    elif not enabled and job:
+        scheduler.remove_job("service_checks")
+        logger.info("Service checks disabled")
+
+
 def stop_scheduler() -> None:
     if scheduler.running:
         scheduler.shutdown(wait=False)

backend/app/services/status_checker.py

@@ -64,17 +64,35 @@ async def check_node(check_method: str, target: str | None, ip: str | None) -> d
         return {"status": "offline", "response_time_ms": None}
 
 
+def _is_ipv6(host: str) -> bool:
+    """True if host is a literal IPv6 address (bracketed or bare)."""
+    try:
+        socket.inet_pton(socket.AF_INET6, host.strip("[]"))
+        return True
+    except OSError:
+        return False
+
+
 async def _ping(host: str) -> bool:
-    # ping(8) -W flag units differ by OS:
+    # Send 2 probes with a ~2s timeout so a single dropped packet or a slow
-    #   Linux:   seconds        (-W 1   = 1s)
+    # device (ESPHome, IoT) doesn't flap a node offline. Success = any reply.
-    #   macOS:   milliseconds   (-W 1   = 1ms — fails for any RTT >1ms)
+    #
-    #   Windows: -w in ms       (-w 1000 = 1s)
+    # -W flag units differ by OS:
+    #   Linux:   seconds        (-W 2   = 2s)
+    #   macOS:   milliseconds   (-W 2000 = 2s)
+    #   Windows: -w in ms       (-w 2000 = 2s)
+    #
+    # IPv6-only hosts (e.g. Alexa) never answer IPv4 ping, so target the right
+    # stack: macOS ships a separate ping6; Linux/Windows take a -6 flag.
+    ipv6 = _is_ipv6(host)
     if sys.platform == "win32":
-        args = ["ping", "-n", "1", "-w", "1000", host]
+        family = ["-6"] if ipv6 else ["-4"]
+        args = ["ping", *family, "-n", "2", "-w", "2000", host]
     elif sys.platform == "darwin":
-        args = ["ping", "-c", "1", "-W", "1000", host]
+        args = ["ping6", "-c", "2", host] if ipv6 else ["ping", "-c", "2", "-W", "2000", host]
     else:
-        args = ["ping", "-c", "1", "-W", "1", host]
+        family = ["-6"] if ipv6 else []
+        args = ["ping", *family, "-c", "2", "-W", "2", host]
     proc = await asyncio.create_subprocess_exec(
         *args,
         stdout=asyncio.subprocess.DEVNULL,
@@ -100,3 +118,75 @@ async def _tcp_connect(host: str, port: int) -> bool:
         return True
     except (TimeoutError, OSError, socket.gaierror):
         return False
+
+
+# --- Per-service status checks ---
+
+# Ports that are not HTTP/web. These get NO status check — a service here stays
+# grey (unknown) rather than going red. An open TCP socket doesn't prove the
+# service is healthy, and a closed one flaps red misleadingly (e.g. SSH on a
+# box that simply firewalls 22). Only HTTP(S)-reachable services are checked.
+_NON_HTTP_PORTS = frozenset({
+    22, 21, 23, 25, 465, 587, 53, 110, 143, 993, 995, 389, 636, 445, 514,
+    1433, 3306, 5432, 5672, 6379, 9092, 11211, 27017, 27018,
+})
+_HTTPS_PORTS = frozenset({443, 8443})
+
+
+def _service_host(svc: dict[str, Any], host: str) -> str:
+    """Bracket bare IPv6 literals for use in a URL."""
+    return f"[{host}]" if _is_ipv6(host) else host
+
+
+async def check_service(svc: dict[str, Any], host: str | None) -> str:
+    """Check a single service. Returns 'online' | 'offline' | 'unknown'.
+
+    Only HTTP(S)-reachable services get a real check (an HTTP GET). Everything
+    else — SSH, databases, mail, DNS, raw TCP, UDP, port-less — stays 'unknown'
+    so it keeps its category colour instead of flashing red. An open TCP socket
+    doesn't prove a non-web service is healthy, so we don't pretend it does.
+    """
+    if not host or host.startswith("-"):
+        return "unknown"
+    if str(svc.get("protocol", "")).lower() == "udp":
+        return "unknown"
+
+    port = svc.get("port")
+    port = int(port) if isinstance(port, int) or (isinstance(port, str) and port.isdigit()) else None
+
+    # Non-HTTP ports (SSH 22, DB, mail, …) are never checked — keep them grey.
+    if port is not None and port in _NON_HTTP_PORTS:
+        return "unknown"
+
+    name = str(svc.get("service_name", "")).lower()
+    is_web = port is not None or "http" in name
+    if not is_web:
+        return "unknown"
+
+    try:
+        scheme = "https" if (
+            port in _HTTPS_PORTS or "https" in name or "ssl" in name or "tls" in name
+        ) else "http"
+        url_host = _service_host(svc, host)
+        url = f"{scheme}://{url_host}" + (f":{port}" if port is not None else "")
+        return "online" if await _http_get(url, verify=False) else "offline"
+    except Exception as exc:
+        logger.debug("Service check failed for %s:%s (%s)", host, port, exc)
+        return "offline"
+
+
+async def check_services(
+    host: str | None, services: list[dict[str, Any]], concurrency: int = 10
+) -> list[dict[str, Any]]:
+    """Check every service against host concurrently (bounded).
+
+    Returns a list of {port, protocol, status} dicts, one per input service.
+    """
+    sem = asyncio.Semaphore(concurrency)
+
+    async def _one(svc: dict[str, Any]) -> dict[str, Any]:
+        async with sem:
+            status = await check_service(svc, host)
+        return {"port": svc.get("port"), "protocol": svc.get("protocol"), "status": status}
+
+    return await asyncio.gather(*[_one(s) for s in services]) if services else []

backend/requirements.txt

@@ -15,7 +15,7 @@ pyyaml==6.0.2
 types-PyYAML==6.0.12.20240917
 websockets==13.1
 httpx==0.27.2
-zeroconf==0.149.7
+zeroconf==0.149.12
 aiomqtt==2.3.0
 
 # Dev

backend/tests/test_scheduler.py

@@ -5,7 +5,13 @@ from unittest.mock import AsyncMock, MagicMock, patch
 import pytest
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 
-from app.core.scheduler import _run_status_checks, start_scheduler, stop_scheduler
+from app.core.scheduler import (
+    _run_service_checks,
+    _run_status_checks,
+    set_service_checks_enabled,
+    start_scheduler,
+    stop_scheduler,
+)
 from app.db.database import Base
 from app.db.models import Node
 
@@ -141,6 +147,7 @@ def test_scheduler_uses_settings_interval():
     with patch("app.core.scheduler.settings") as mock_settings, \
          patch("app.core.scheduler.AsyncIOScheduler", return_value=mock_sched):
         mock_settings.status_checker_interval = 45
+        mock_settings.service_check_enabled = False
         start_scheduler()
         _, kwargs = mock_sched.add_job.call_args
         assert kwargs["seconds"] == 45
@@ -155,3 +162,90 @@ def test_start_and_stop_scheduler():
         mock_sched.add_job.assert_called_once()
         mock_sched.start.assert_called_once()
         mock_sched.shutdown.assert_called_once()
+
+
+# ---------------------------------------------------------------------------
+# Service checks
+# ---------------------------------------------------------------------------
+
+@pytest.mark.asyncio
+async def test_run_service_checks_disabled_does_nothing(mem_db):
+    async with mem_db() as session:
+        session.add(_make_node(services=[{"port": 80, "protocol": "tcp", "service_name": "http"}]))
+        await session.commit()
+
+    with patch("app.core.scheduler.settings") as mock_settings, \
+         patch("app.core.scheduler.AsyncSessionLocal", mem_db), \
+         patch("app.services.status_checker.check_services", new_callable=AsyncMock) as mock_cs:
+        mock_settings.service_check_enabled = False
+        await _run_service_checks()
+    mock_cs.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_run_service_checks_broadcasts_per_node(mem_db):
+    async with mem_db() as session:
+        node = _make_node(
+            ip="10.0.0.5",
+            services=[{"port": 80, "protocol": "tcp", "service_name": "http"}],
+        )
+        session.add(node)
+        await session.commit()
+        node_id = node.id
+
+    statuses = [{"port": 80, "protocol": "tcp", "status": "offline"}]
+
+    with patch("app.core.scheduler.settings") as mock_settings, \
+         patch("app.core.scheduler.AsyncSessionLocal", mem_db), \
+         patch("app.core.scheduler.check_services", new_callable=AsyncMock, return_value=statuses), \
+         patch("app.api.routes.status.broadcast_service_status", new_callable=AsyncMock) as mock_bcast:
+        mock_settings.service_check_enabled = True
+        await _run_service_checks()
+
+    mock_bcast.assert_awaited_once()
+    _, kwargs = mock_bcast.call_args
+    assert kwargs["node_id"] == node_id
+    assert kwargs["services"] == statuses
+
+
+@pytest.mark.asyncio
+async def test_run_service_checks_skips_nodes_without_services(mem_db):
+    async with mem_db() as session:
+        session.add(_make_node(ip="10.0.0.6", services=[]))
+        await session.commit()
+
+    with patch("app.core.scheduler.settings") as mock_settings, \
+         patch("app.core.scheduler.AsyncSessionLocal", mem_db), \
+         patch("app.core.scheduler.check_services", new_callable=AsyncMock) as mock_cs:
+        mock_settings.service_check_enabled = True
+        await _run_service_checks()
+    mock_cs.assert_not_called()
+
+
+def test_set_service_checks_enabled_adds_and_removes_job():
+    mock_sched = MagicMock()
+    mock_sched.running = True
+    with patch("app.core.scheduler.scheduler", mock_sched), \
+         patch("app.core.scheduler.settings") as mock_settings:
+        mock_settings.service_check_interval = 300
+        # Enable: no existing job -> add
+        mock_sched.get_job.return_value = None
+        set_service_checks_enabled(True)
+        mock_sched.add_job.assert_called_once()
+        # Disable: existing job -> remove
+        mock_sched.get_job.return_value = MagicMock()
+        set_service_checks_enabled(False)
+        mock_sched.remove_job.assert_called_once_with("service_checks")
+
+
+def test_start_scheduler_adds_service_job_when_enabled():
+    mock_sched = MagicMock()
+    with patch("app.core.scheduler.settings") as mock_settings, \
+         patch("app.core.scheduler.AsyncIOScheduler", return_value=mock_sched):
+        mock_settings.status_checker_interval = 60
+        mock_settings.service_check_enabled = True
+        mock_settings.service_check_interval = 300
+        start_scheduler()
+    job_ids = [kw.get("id") for _, kw in mock_sched.add_job.call_args_list]
+    assert "status_checks" in job_ids
+    assert "service_checks" in job_ids

backend/tests/test_settings.py

@@ -45,3 +45,42 @@ async def test_update_settings_saves_interval(client: AsyncClient, headers):
 async def test_update_settings_requires_auth(client: AsyncClient):
     res = await client.post("/api/v1/settings", json={"interval_seconds": 30})
     assert res.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_get_settings_returns_service_check_fields(client: AsyncClient, headers):
+    res = await client.get("/api/v1/settings", headers=headers)
+    data = res.json()
+    assert "service_check_enabled" in data
+    assert "service_check_interval" in data
+    assert isinstance(data["service_check_enabled"], bool)
+    assert isinstance(data["service_check_interval"], int)
+
+
+@pytest.mark.asyncio
+async def test_update_settings_saves_service_check_fields(client: AsyncClient, headers):
+    with patch("app.api.routes.settings.settings") as mock_settings:
+        mock_settings.save_overrides = lambda: None
+        res = await client.post(
+            "/api/v1/settings",
+            json={
+                "interval_seconds": 60,
+                "service_check_enabled": True,
+                "service_check_interval": 600,
+            },
+            headers=headers,
+        )
+    assert res.status_code == 200
+    body = res.json()
+    assert body["service_check_enabled"] is True
+    assert body["service_check_interval"] == 600
+
+
+@pytest.mark.asyncio
+async def test_update_settings_rejects_too_short_service_interval(client: AsyncClient, headers):
+    res = await client.post(
+        "/api/v1/settings",
+        json={"interval_seconds": 60, "service_check_enabled": True, "service_check_interval": 5},
+        headers=headers,
+    )
+    assert res.status_code == 422

backend/tests/test_status.py

@@ -5,7 +5,13 @@ import pytest
 from fastapi.testclient import TestClient
 from starlette.websockets import WebSocketDisconnect
 
-from app.api.routes.status import _connections, broadcast_scan_update, broadcast_status
+from app.api.routes.status import (
+    _connections,
+    _drop,
+    broadcast_scan_update,
+    broadcast_service_status,
+    broadcast_status,
+)
 from app.main import app
 
 # ---------------------------------------------------------------------------
@@ -155,3 +161,63 @@ async def test_broadcast_no_connections():
     assert len(_connections) == 0
     await broadcast_status(node_id="n", status="online", checked_at="t")
     await broadcast_scan_update(run_id="r", devices_found=0)
+
+
+# ---------------------------------------------------------------------------
+# broadcast_service_status
+# ---------------------------------------------------------------------------
+
+@pytest.mark.asyncio
+async def test_broadcast_service_status_payload():
+    received: list[str] = []
+
+    class FakeWS:
+        async def send_text(self, text: str) -> None:
+            received.append(text)
+
+    fake = FakeWS()
+    _connections.append(fake)
+    try:
+        await broadcast_service_status(
+            node_id="node-7",
+            services=[{"port": 80, "protocol": "tcp", "status": "offline"}],
+            checked_at="2024-01-01T00:00:00",
+        )
+    finally:
+        _drop(fake)
+
+    msg = json.loads(received[0])
+    assert msg["type"] == "service_status"
+    assert msg["node_id"] == "node-7"
+    assert msg["services"] == [{"port": 80, "protocol": "tcp", "status": "offline"}]
+
+
+# ---------------------------------------------------------------------------
+# _drop — idempotent connection removal (regression for double-remove crash)
+# ---------------------------------------------------------------------------
+
+def test_drop_is_idempotent():
+    """Dropping a connection twice must not raise (was a ValueError crash)."""
+    class FakeWS:
+        pass
+
+    fake = FakeWS()
+    _connections.append(fake)
+    _drop(fake)
+    _drop(fake)  # second drop must be a no-op
+    assert fake not in _connections
+
+
+@pytest.mark.asyncio
+async def test_broadcast_dead_connection_dropped_once_safely():
+    """A send failure removes the dead socket without a double-remove crash."""
+    class DeadWS:
+        async def send_text(self, _: str) -> None:
+            raise RuntimeError("disconnected")
+
+    dead = DeadWS()
+    _connections.append(dead)
+    await broadcast_status(node_id="n", status="online", checked_at="t")
+    # A second broadcast must not raise even though dead is already gone.
+    await broadcast_status(node_id="n", status="online", checked_at="t")
+    assert dead not in _connections

backend/tests/test_status_checker.py

@@ -3,7 +3,13 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from app.services.status_checker import _ping, _tcp_connect, check_node
+from app.services.status_checker import (
+    _ping,
+    _tcp_connect,
+    check_node,
+    check_service,
+    check_services,
+)
 
 # --- check_node dispatcher ---
 
@@ -169,9 +175,14 @@ async def test_ping_uses_unix_args_on_non_windows():
     assert "-c" in captured["args"]
     assert "-W" in captured["args"]
     assert "-n" not in captured["args"]
-    # Linux: -W is in seconds; 1s is the intended timeout
+    # 2 probes so a single dropped packet doesn't flap the node offline
+    c_idx = captured["args"].index("-c")
+    assert captured["args"][c_idx + 1] == "2"
+    # Linux: -W is in seconds; 2s is the intended timeout
     w_idx = captured["args"].index("-W")
-    assert captured["args"][w_idx + 1] == "1"
+    assert captured["args"][w_idx + 1] == "2"
+    # IPv4 target → no -6 flag
+    assert "-6" not in captured["args"]
 
 
 @pytest.mark.asyncio
@@ -193,7 +204,7 @@ async def test_ping_uses_macos_millisecond_timeout():
     assert "-c" in captured["args"]
     assert "-W" in captured["args"]
     w_idx = captured["args"].index("-W")
-    assert captured["args"][w_idx + 1] == "1000"
+    assert captured["args"][w_idx + 1] == "2000"
 
 
 @pytest.mark.asyncio
@@ -216,6 +227,75 @@ async def test_ping_uses_windows_args_on_win32():
     assert "-c" not in captured["args"]
 
 
+# --- _ping IPv6 support ---
+
+@pytest.mark.asyncio
+async def test_ping_ipv6_linux_uses_dash6():
+    """IPv6-only devices (e.g. Alexa) need ping -6 on Linux."""
+    captured = {}
+
+    async def fake_exec(*args, **kwargs):
+        captured["args"] = args
+        proc = MagicMock()
+        proc.returncode = 0
+        proc.wait = AsyncMock()
+        return proc
+
+    with patch("app.services.status_checker.sys.platform", "linux"), \
+         patch("asyncio.create_subprocess_exec", side_effect=fake_exec):
+        await _ping("fe80::1")
+
+    assert "-6" in captured["args"]
+    assert captured["args"][-1] == "fe80::1"
+
+
+@pytest.mark.asyncio
+async def test_ping_ipv6_macos_uses_ping6():
+    """macOS ships a separate ping6 binary for IPv6 targets."""
+    captured = {}
+
+    async def fake_exec(*args, **kwargs):
+        captured["args"] = args
+        proc = MagicMock()
+        proc.returncode = 0
+        proc.wait = AsyncMock()
+        return proc
+
+    with patch("app.services.status_checker.sys.platform", "darwin"), \
+         patch("asyncio.create_subprocess_exec", side_effect=fake_exec):
+        await _ping("2001:db8::1")
+
+    assert captured["args"][0] == "ping6"
+
+
+@pytest.mark.asyncio
+async def test_ping_ipv6_windows_uses_dash6():
+    captured = {}
+
+    async def fake_exec(*args, **kwargs):
+        captured["args"] = args
+        proc = MagicMock()
+        proc.returncode = 0
+        proc.wait = AsyncMock()
+        return proc
+
+    with patch("app.services.status_checker.sys.platform", "win32"), \
+         patch("asyncio.create_subprocess_exec", side_effect=fake_exec):
+        await _ping("2001:db8::1")
+
+    assert "-6" in captured["args"]
+
+
+def test_is_ipv6_detection():
+    from app.services.status_checker import _is_ipv6
+
+    assert _is_ipv6("fe80::1") is True
+    assert _is_ipv6("2001:db8::1") is True
+    assert _is_ipv6("[2001:db8::1]") is True
+    assert _is_ipv6("192.168.1.1") is False
+    assert _is_ipv6("example.local") is False
+
+
 # --- check_node target validation ---
 
 @pytest.mark.asyncio
@@ -268,3 +348,117 @@ async def test_tcp_connect_os_error():
     with patch("asyncio.open_connection", new_callable=AsyncMock, side_effect=OSError("refused")):
         result = await _tcp_connect("192.168.1.1", 9999)
     assert result is False
+
+
+# --- check_service ---
+
+@pytest.mark.asyncio
+async def test_check_service_no_host_is_unknown():
+    assert await check_service({"port": 80, "protocol": "tcp", "service_name": "http"}, None) == "unknown"
+
+
+@pytest.mark.asyncio
+async def test_check_service_flag_host_is_unknown():
+    assert await check_service({"port": 80, "protocol": "tcp", "service_name": "http"}, "-O") == "unknown"
+
+
+@pytest.mark.asyncio
+async def test_check_service_udp_is_unknown():
+    assert await check_service({"port": 53, "protocol": "udp", "service_name": "dns"}, "10.0.0.1") == "unknown"
+
+
+@pytest.mark.asyncio
+async def test_check_service_portless_non_web_is_unknown():
+    svc = {"protocol": "tcp", "service_name": "thing"}
+    assert await check_service(svc, "10.0.0.1") == "unknown"
+
+
+@pytest.mark.asyncio
+async def test_check_service_web_uses_http_get():
+    captured = {}
+
+    async def fake_http_get(url, verify=False):
+        captured["url"] = url
+        return True
+
+    svc = {"port": 8080, "protocol": "tcp", "service_name": "http"}
+    with patch("app.services.status_checker._http_get", side_effect=fake_http_get):
+        result = await check_service(svc, "10.0.0.1")
+    assert result == "online"
+    assert captured["url"] == "http://10.0.0.1:8080"
+
+
+@pytest.mark.asyncio
+async def test_check_service_https_port_uses_https_scheme():
+    captured = {}
+
+    async def fake_http_get(url, verify=False):
+        captured["url"] = url
+        return True
+
+    svc = {"port": 443, "protocol": "tcp", "service_name": "web"}
+    with patch("app.services.status_checker._http_get", side_effect=fake_http_get):
+        await check_service(svc, "10.0.0.1")
+    assert captured["url"].startswith("https://")
+
+
+@pytest.mark.asyncio
+async def test_check_service_web_offline_when_http_fails():
+    svc = {"port": 80, "protocol": "tcp", "service_name": "http"}
+    with patch("app.services.status_checker._http_get", new_callable=AsyncMock, return_value=False):
+        assert await check_service(svc, "10.0.0.1") == "offline"
+
+
+@pytest.mark.asyncio
+async def test_check_service_non_http_port_is_unknown():
+    """Non-HTTP ports (DB, mail, …) stay grey — no TCP check, no red flap."""
+    svc = {"port": 5432, "protocol": "tcp", "service_name": "postgres"}
+    with patch("app.services.status_checker._tcp_connect", new_callable=AsyncMock) as mock_tcp, \
+         patch("app.services.status_checker._http_get", new_callable=AsyncMock) as mock_http:
+        result = await check_service(svc, "10.0.0.1")
+    assert result == "unknown"
+    mock_tcp.assert_not_called()
+    mock_http.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_check_service_ssh_port_22_is_unknown():
+    """SSH (port 22) is never checked — keep it grey, not red/green."""
+    svc = {"port": 22, "protocol": "tcp", "service_name": "ssh"}
+    with patch("app.services.status_checker._tcp_connect", new_callable=AsyncMock) as mock_tcp:
+        result = await check_service(svc, "10.0.0.1")
+    assert result == "unknown"
+    mock_tcp.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_check_service_ipv6_brackets_url_host():
+    captured = {}
+
+    async def fake_http_get(url, verify=False):
+        captured["url"] = url
+        return True
+
+    svc = {"port": 80, "protocol": "tcp", "service_name": "http"}
+    with patch("app.services.status_checker._http_get", side_effect=fake_http_get):
+        await check_service(svc, "2001:db8::1")
+    assert captured["url"] == "http://[2001:db8::1]:80"
+
+
+@pytest.mark.asyncio
+async def test_check_services_returns_status_per_service():
+    services = [
+        {"port": 80, "protocol": "tcp", "service_name": "http"},
+        {"port": 5432, "protocol": "tcp", "service_name": "postgres"},
+    ]
+    with patch("app.services.status_checker._http_get", new_callable=AsyncMock, return_value=True):
+        results = await check_services("10.0.0.1", services)
+    assert results == [
+        {"port": 80, "protocol": "tcp", "status": "online"},
+        {"port": 5432, "protocol": "tcp", "status": "unknown"},
+    ]
+
+
+@pytest.mark.asyncio
+async def test_check_services_empty_list():
+    assert await check_services("10.0.0.1", []) == []

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "frontend",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "frontend",
-      "version": "2.4.0",
+      "version": "2.5.0",
       "dependencies": {
         "@base-ui/react": "^1.2.0",
         "@dagrejs/dagre": "^2.0.4",
@@ -6196,9 +6196,9 @@
       }
     },
     "node_modules/hono": {
-      "version": "4.12.18",
+      "version": "4.12.25",
-      "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.18.tgz",
+      "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.25.tgz",
-      "integrity": "sha512-RWzP96k/yv0PQfyXnWjs6zot20TqfpfsNXhOnev8d1InAxubW93L11/oNUc3tQqn2G0bSdAOBpX+2uDFHV7kdQ==",
+      "integrity": "sha512-2NFaIyNVgJmBs/ecmtGzlmluTFs5cHEWGTdu0t1HBwYzoGXOL5nUQBRMXsXWla5i4KkG//QMzVP88m1+I3fdAQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.9.0"

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "2.4.0",
+  "version": "2.5.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
@@ -37,6 +37,9 @@
     "tw-animate-css": "^1.4.0",
     "zustand": "^5.0.11"
   },
+  "overrides": {
+    "hono": "^4.12.21"
+  },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
     "@tailwindcss/vite": "^4.2.1",

frontend/src/App.tsx

@@ -27,7 +27,9 @@ import { TextModal, type TextFormData } from '@/components/modals/TextModal'
 import { ThemeModal } from '@/components/modals/ThemeModal'
 import { SearchModal } from '@/components/modals/SearchModal'
 import { PendingDevicesModal } from '@/components/modals/PendingDevicesModal'
+import { ScanHistoryModal } from '@/components/modals/ScanHistoryModal'
 import { ShortcutsModal } from '@/components/modals/ShortcutsModal'
+import { ConfirmAddToGroupModal } from '@/components/modals/ConfirmAddToGroupModal'
 import { useCanvasStore } from '@/stores/canvasStore'
 import { useDesignStore } from '@/stores/designStore'
 import { useAuthStore } from '@/stores/authStore'
@@ -42,7 +44,7 @@ const STANDALONE = import.meta.env.VITE_STANDALONE === 'true'
 const STANDALONE_STORAGE_KEY = 'homelable_canvas'
 
 export default function App() {
-  const { loadCanvas, markSaved, markUnsaved, selectedNodeId, selectedNodeIds, addNode, updateNode, deleteNode, onConnect, updateEdge, deleteEdge, setProxmoxContainerMode, setNodeZIndex, editingGroupRectId, setEditingGroupRectId, editingTextId, setEditingTextId, nodes, edges, snapshotHistory, undo, redo } = useCanvasStore()
+  const { loadCanvas, markSaved, markUnsaved, selectedNodeId, selectedNodeIds, addNode, updateNode, deleteNode, onConnect, updateEdge, deleteEdge, setProxmoxContainerMode, setNodeZIndex, editingGroupRectId, setEditingGroupRectId, editingTextId, setEditingTextId, nodes, edges, snapshotHistory, undo, redo, addToGroup, addToContainer } = useCanvasStore()
   const canvasRef = useRef<HTMLDivElement>(null)
   const { isAuthenticated } = useAuthStore()
   const { activeTheme, setTheme, customStyle, setCustomStyle } = useThemeStore()
@@ -52,7 +54,7 @@ export default function App() {
 
   const [themeModalOpen, setThemeModalOpen] = useState(false)
   const [searchOpen, setSearchOpen] = useState(false)
-  const [sidebarForceView, setSidebarForceView] = useState<'history' | undefined>(undefined)
+  const [scanHistoryOpen, setScanHistoryOpen] = useState(false)
   const [pendingModalOpen, setPendingModalOpen] = useState(false)
   const [pendingModalStatus, setPendingModalStatus] = useState<'pending' | 'hidden'>('pending')
   const [pendingHighlightId, setPendingHighlightId] = useState<string | undefined>(undefined)
@@ -68,6 +70,8 @@ export default function App() {
   const [addTextOpen, setAddTextOpen] = useState(false)
   const [editNodeId, setEditNodeId] = useState<string | null>(null)
   const [pendingConnection, setPendingConnection] = useState<Connection | null>(null)
+  const [pendingGroupAdd, setPendingGroupAdd] = useState<{ nodeId: string; groupId: string } | null>(null)
+  const [pendingContainerAdd, setPendingContainerAdd] = useState<{ nodeId: string; containerId: string } | null>(null)
   const [editEdgeId, setEditEdgeId] = useState<string | null>(null)
   const [scanConfigOpen, setScanConfigOpen] = useState(false)
   const [settingsOpen, setSettingsOpen] = useState(false)
@@ -607,7 +611,7 @@ export default function App() {
             onZigbeeImport={() => setZigbeeImportOpen(true)}
             onSave={handleSave}
             onOpenSettings={() => setSettingsOpen(true)}
-            forceView={sidebarForceView}
+            onOpenHistory={() => setScanHistoryOpen(true)}
             onOpenPending={openPendingModal}
           />
           <div className="flex flex-col flex-1 min-w-0">
@@ -631,6 +635,8 @@ export default function App() {
                   onEdgeDoubleClick={handleEdgeDoubleClick}
                   onNodeDoubleClick={handleNodeDoubleClick}
                   onNodeDragStart={snapshotHistory}
+                  onRequestAddToGroup={setPendingGroupAdd}
+                  onRequestAddToContainer={setPendingContainerAdd}
                   onOpenPending={(deviceId) => openPendingModal(deviceId)}
                 />
               </div>
@@ -645,7 +651,7 @@ export default function App() {
           onClose={() => setAddNodeOpen(false)}
           onSubmit={handleAddNode}
           title="Add Node"
-          parentCandidates={nodes.map((n) => ({ id: n.id, label: n.data.label ?? n.id, type: n.data.type }))}
+          parentCandidates={nodes.map((n) => ({ id: n.id, label: n.data.label ?? n.id, type: n.data.type, container_mode: n.data.container_mode }))}
         />
 
         {/* key forces re-mount when editing a different node, resetting form state */}
@@ -672,7 +678,7 @@ export default function App() {
             }
             return nodes
               .filter((n) => !descendants.has(n.id))
-              .map((n) => ({ id: n.id, label: n.data.label ?? n.id, type: n.data.type }))
+              .map((n) => ({ id: n.id, label: n.data.label ?? n.id, type: n.data.type, container_mode: n.data.container_mode }))
           })()}
           currentNodeId={editNodeId ?? undefined}
         />
@@ -706,8 +712,6 @@ export default function App() {
             onClose={() => setScanConfigOpen(false)}
             onScanNow={() => {
               toast.success('Network scan started — check Scan History for results')
-              setSidebarForceView(undefined)
-              setTimeout(() => setSidebarForceView('history'), 0)
             }}
           />
         )}
@@ -718,12 +722,18 @@ export default function App() {
             onClose={() => setZigbeeImportOpen(false)}
             onAddToCanvas={handleZigbeeAddToCanvas}
             onPendingImported={() => {
-              setSidebarForceView(undefined)
+              toast.success('Zigbee import started — check Scan History for results')
-              setTimeout(() => setSidebarForceView('history'), 0)
             }}
           />
         )}
 
+        {!STANDALONE && (
+          <ScanHistoryModal
+            open={scanHistoryOpen}
+            onClose={() => setScanHistoryOpen(false)}
+          />
+        )}
+
         <GroupRectModal
           open={addGroupRectOpen}
           onClose={() => setAddGroupRectOpen(false)}
@@ -804,6 +814,29 @@ export default function App() {
         />
         <ShortcutsModal open={shortcutsOpen} onClose={() => setShortcutsOpen(false)} />
 
+        <ConfirmAddToGroupModal
+          open={!!pendingGroupAdd}
+          nodeLabel={pendingGroupAdd ? (nodes.find((n) => n.id === pendingGroupAdd.nodeId)?.data.label ?? '') : ''}
+          targetLabel={pendingGroupAdd ? (nodes.find((n) => n.id === pendingGroupAdd.groupId)?.data.label ?? '') : ''}
+          onConfirm={() => {
+            if (pendingGroupAdd) addToGroup(pendingGroupAdd.groupId, pendingGroupAdd.nodeId)
+            setPendingGroupAdd(null)
+          }}
+          onCancel={() => setPendingGroupAdd(null)}
+        />
+
+        <ConfirmAddToGroupModal
+          open={!!pendingContainerAdd}
+          variant="container"
+          nodeLabel={pendingContainerAdd ? (nodes.find((n) => n.id === pendingContainerAdd.nodeId)?.data.label ?? '') : ''}
+          targetLabel={pendingContainerAdd ? (nodes.find((n) => n.id === pendingContainerAdd.containerId)?.data.label ?? '') : ''}
+          onConfirm={() => {
+            if (pendingContainerAdd) addToContainer(pendingContainerAdd.containerId, pendingContainerAdd.nodeId)
+            setPendingContainerAdd(null)
+          }}
+          onCancel={() => setPendingContainerAdd(null)}
+        />
+
         {!STANDALONE && (
           <SettingsModal open={settingsOpen} onClose={() => setSettingsOpen(false)} />
         )}

frontend/src/api/__tests__/client.test.ts

@@ -204,8 +204,8 @@ describe('api/client', () => {
   it('settingsApi get/save', () => {
     mod.settingsApi.get()
     expect(api.get).toHaveBeenCalledWith('/settings')
-    mod.settingsApi.save({ interval_seconds: 30 })
+    mod.settingsApi.save({ interval_seconds: 30, service_check_enabled: true, service_check_interval: 600 })
-    expect(api.post).toHaveBeenCalledWith('/settings', { interval_seconds: 30 })
+    expect(api.post).toHaveBeenCalledWith('/settings', { interval_seconds: 30, service_check_enabled: true, service_check_interval: 600 })
   })
 
   it('zigbeeApi.testConnection/importNetwork/importToPending', () => {

frontend/src/api/client.ts

@@ -90,9 +90,15 @@ export const scanApi = {
   saveConfig: (data: { ranges: string[] }) => api.post('/scan/config', data),
 }
 
+export interface AppSettings {
+  interval_seconds: number
+  service_check_enabled: boolean
+  service_check_interval: number
+}
+
 export const settingsApi = {
-  get: () => api.get<{ interval_seconds: number }>('/settings'),
+  get: () => api.get<AppSettings>('/settings'),
-  save: (data: { interval_seconds: number }) => api.post<{ interval_seconds: number }>('/settings', data),
+  save: (data: AppSettings) => api.post<AppSettings>('/settings', data),
 }
 
 export const designsApi = {

frontend/src/components/canvas/CanvasContainer.tsx

@@ -30,10 +30,12 @@ interface CanvasContainerProps {
   onEdgeDoubleClick?: (edge: Edge<EdgeData>) => void
   onNodeDoubleClick?: (node: Node<NodeData>) => void
   onNodeDragStart?: () => void
+  onRequestAddToGroup?: (payload: { nodeId: string; groupId: string }) => void
+  onRequestAddToContainer?: (payload: { nodeId: string; containerId: string }) => void
   onOpenPending?: (deviceId: string) => void
 }
 
-export function CanvasContainer({ onConnect: onConnectProp, onEdgeDoubleClick, onNodeDoubleClick, onNodeDragStart, onOpenPending }: CanvasContainerProps) {
+export function CanvasContainer({ onConnect: onConnectProp, onEdgeDoubleClick, onNodeDoubleClick, onNodeDragStart, onRequestAddToGroup, onRequestAddToContainer, onOpenPending }: CanvasContainerProps) {
   const [lassoMode, setLassoMode] = useState(true)
   const {
     nodes, edges,
@@ -42,7 +44,7 @@ export function CanvasContainer({ onConnect: onConnectProp, onEdgeDoubleClick, o
     fitViewPending, clearFitViewPending,
     copySelectedNodes, pasteNodes,
   } = useCanvasStore()
-  const { fitView, screenToFlowPosition } = useReactFlow()
+  const { fitView, screenToFlowPosition, getIntersectingNodes } = useReactFlow<Node<NodeData>>()
 
   // Track the last cursor position over the canvas so paste lands under it.
   const cursorRef = useRef<{ x: number; y: number } | null>(null)
@@ -125,6 +127,24 @@ export function CanvasContainer({ onConnect: onConnectProp, onEdgeDoubleClick, o
 
   const { guides, onNodeDrag, onNodeDragStop } = useAlignmentGuides()
 
+  // Drop a top-level node onto a group → ask App to confirm adding it. Runs
+  // before the alignment snap so detection uses the dropped position.
+  const handleNodeDragStop = useCallback<NonNullable<typeof onNodeDragStop>>((event, dragNode, dragNodes) => {
+    if (dragNode && !dragNode.parentId &&
+        dragNode.data.type !== 'group' && dragNode.data.type !== 'groupRect') {
+      const intersecting = getIntersectingNodes(dragNode)
+      const group = intersecting.find((n) => n.data.type === 'group')
+      if (group) {
+        onRequestAddToGroup?.({ nodeId: dragNode.id, groupId: group.id })
+      } else {
+        // Any node in container_mode (proxmox, docker_host, …) accepts children.
+        const container = intersecting.find((n) => n.id !== dragNode.id && n.data.container_mode === true)
+        if (container) onRequestAddToContainer?.({ nodeId: dragNode.id, containerId: container.id })
+      }
+    }
+    onNodeDragStop(event, dragNode, dragNodes)
+  }, [onRequestAddToGroup, onRequestAddToContainer, getIntersectingNodes, onNodeDragStop])
+
   return (
     <div className="w-full h-full" style={{ background: theme.colors.canvasBackground }} onMouseMove={onMouseMove}>
       <ReactFlow
@@ -139,7 +159,7 @@ export function CanvasContainer({ onConnect: onConnectProp, onEdgeDoubleClick, o
         onNodeDoubleClick={handleNodeDoubleClick}
         onNodeDragStart={onNodeDragStart}
         onNodeDrag={onNodeDrag}
-        onNodeDragStop={onNodeDragStop}
+        onNodeDragStop={handleNodeDragStop}
         nodeTypes={nodeTypes}
         edgeTypes={edgeTypes}
         deleteKeyCode={['Backspace', 'Delete']}

frontend/src/components/canvas/__tests__/BaseNode.test.tsx

@@ -20,7 +20,9 @@ vi.mock('@/stores/themeStore', () => ({
 }))
 
 vi.mock('@/stores/canvasStore', () => ({
-  useCanvasStore: (sel: (s: { hideIp: boolean }) => unknown) => sel({ hideIp: false }),
+  useCanvasStore: (sel: (s: { hideIp: boolean; serviceStatuses: Record<string, string> }) => unknown) =>
+    sel({ hideIp: false, serviceStatuses: {} }),
+  serviceStatusKey: (nodeId: string, port?: number, protocol?: string) => `${nodeId}:${port ?? ''}/${protocol ?? ''}`,
 }))
 
 vi.mock('@/utils/themes', () => ({

frontend/src/components/canvas/__tests__/CanvasContainer.test.tsx

@@ -9,6 +9,9 @@ import type { NodeData, EdgeData } from '@/types'
 // Capture props passed to ReactFlow so we can test the callbacks
 let rfProps: Record<string, unknown> = {}
 
+// Hoisted holder so the mock factory can read the configurable intersection set.
+const rf = vi.hoisted(() => ({ intersecting: [] as unknown[] }))
+
 vi.mock('@xyflow/react', () => ({
   ReactFlow: (props: Record<string, unknown>) => {
     rfProps = props
@@ -21,7 +24,13 @@ vi.mock('@xyflow/react', () => ({
   ConnectionMode: { Loose: 'loose' },
   SelectionMode: { Partial: 'partial' },
   Position: { Top: 'top', Right: 'right', Bottom: 'bottom', Left: 'left' },
-  useReactFlow: () => ({ fitView: vi.fn() }),
+  useReactFlow: () => ({
+    fitView: vi.fn(),
+    screenToFlowPosition: vi.fn(),
+    getIntersectingNodes: () => rf.intersecting,
+    setNodes: vi.fn(),
+    getNodes: () => [],
+  }),
 }))
 
 vi.mock('@xyflow/react/dist/style.css', () => ({}))
@@ -42,6 +51,7 @@ function makeEdge(id: string): Edge<EdgeData> {
 describe('CanvasContainer', () => {
   beforeEach(() => {
     rfProps = {}
+    rf.intersecting = []
     useCanvasStore.setState({ nodes: [], edges: [], selectedNodeId: null })
     useThemeStore.setState({ activeTheme: 'default' })
   })
@@ -154,6 +164,93 @@ describe('CanvasContainer', () => {
     expect(rfProps.onNodeDragStart).toBe(onNodeDragStart)
   })
 
+  // ── Drag onto group → onRequestAddToGroup ─────────────────────────────────
+
+  function groupNode(id: string): Node<NodeData> {
+    return { id, type: 'group', position: { x: 0, y: 0 }, data: { label: id, type: 'group', status: 'unknown', services: [] } }
+  }
+
+  it('fires onRequestAddToGroup when a node is dropped over a group', () => {
+    const onRequestAddToGroup = vi.fn()
+    const node = makeNode('n1')
+    const group = groupNode('g1')
+    rf.intersecting = [group]
+    render(<CanvasContainer onRequestAddToGroup={onRequestAddToGroup} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToGroup).toHaveBeenCalledWith({ nodeId: 'n1', groupId: 'g1' })
+  })
+
+  it('does not fire onRequestAddToGroup when no group is under the node', () => {
+    const onRequestAddToGroup = vi.fn()
+    const node = makeNode('n1')
+    rf.intersecting = [makeNode('n2')]
+    render(<CanvasContainer onRequestAddToGroup={onRequestAddToGroup} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToGroup).not.toHaveBeenCalled()
+  })
+
+  it('does not fire onRequestAddToGroup for an already-parented node', () => {
+    const onRequestAddToGroup = vi.fn()
+    const node = { ...makeNode('n1'), parentId: 'gOther' }
+    rf.intersecting = [groupNode('g1')]
+    render(<CanvasContainer onRequestAddToGroup={onRequestAddToGroup} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToGroup).not.toHaveBeenCalled()
+  })
+
+  it('does not fire onRequestAddToGroup when the dragged node is itself a group', () => {
+    const onRequestAddToGroup = vi.fn()
+    const node = groupNode('g2')
+    rf.intersecting = [groupNode('g1')]
+    render(<CanvasContainer onRequestAddToGroup={onRequestAddToGroup} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToGroup).not.toHaveBeenCalled()
+  })
+
+  // ── Drag onto container node → onRequestAddToContainer ────────────────────
+
+  function containerNode(id: string, type: NodeData['type'] = 'proxmox'): Node<NodeData> {
+    return { id, type, position: { x: 0, y: 0 }, data: { label: id, type, status: 'unknown', services: [], container_mode: true } }
+  }
+
+  it('fires onRequestAddToContainer when a node is dropped over a container_mode node', () => {
+    const onRequestAddToContainer = vi.fn()
+    const node = makeNode('n1')
+    rf.intersecting = [containerNode('px1')]
+    render(<CanvasContainer onRequestAddToContainer={onRequestAddToContainer} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToContainer).toHaveBeenCalledWith({ nodeId: 'n1', containerId: 'px1' })
+  })
+
+  it('prefers a group over a container when both intersect', () => {
+    const onRequestAddToGroup = vi.fn()
+    const onRequestAddToContainer = vi.fn()
+    const node = makeNode('n1')
+    rf.intersecting = [containerNode('px1'), groupNode('g1')]
+    render(<CanvasContainer onRequestAddToGroup={onRequestAddToGroup} onRequestAddToContainer={onRequestAddToContainer} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToGroup).toHaveBeenCalledWith({ nodeId: 'n1', groupId: 'g1' })
+    expect(onRequestAddToContainer).not.toHaveBeenCalled()
+  })
+
+  it('does not fire onRequestAddToContainer for an already-parented node', () => {
+    const onRequestAddToContainer = vi.fn()
+    const node = { ...makeNode('n1'), parentId: 'pxOther' }
+    rf.intersecting = [containerNode('px1')]
+    render(<CanvasContainer onRequestAddToContainer={onRequestAddToContainer} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToContainer).not.toHaveBeenCalled()
+  })
+
+  it('does not fire onRequestAddToContainer when the target node is not in container_mode', () => {
+    const onRequestAddToContainer = vi.fn()
+    const node = makeNode('n1')
+    rf.intersecting = [makeNode('n2')]
+    render(<CanvasContainer onRequestAddToContainer={onRequestAddToContainer} />)
+    ;(rfProps.onNodeDragStop as (...args: unknown[]) => unknown)({} as MouseEvent, node, [node])
+    expect(onRequestAddToContainer).not.toHaveBeenCalled()
+  })
+
   // ── Canvas settings ───────────────────────────────────────────────────────
 
   it('enables snapToGrid', () => {

frontend/src/components/canvas/edges/__tests__/HomelableEdge.label.test.tsx

@@ -0,0 +1,70 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render } from '@testing-library/react'
+import { ReactFlowProvider } from '@xyflow/react'
+import type { EdgeProps, Edge } from '@xyflow/react'
+import type { EdgeData } from '@/types'
+
+/**
+ * Issue #183 — connection labels must support multiple lines.
+ *
+ * The label is a free-text string; newlines entered in the EdgeModal textarea
+ * are stored verbatim. The rendered label div must preserve those newlines
+ * (`whitespace-pre-line`) instead of collapsing them into a single line.
+ *
+ * <EdgeLabelRenderer> normally portals into a node that only exists inside a
+ * full <ReactFlow> host, so we stub it to a passthrough to render the label
+ * markup directly.
+ */
+vi.mock('@xyflow/react', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@xyflow/react')>()
+  return {
+    ...actual,
+    EdgeLabelRenderer: ({ children }: { children: React.ReactNode }) => <>{children}</>,
+  }
+})
+
+const { HomelableEdge } = await import('../index')
+
+function renderEdge(data: Partial<EdgeData> = {}) {
+  const props = {
+    id: 'e1',
+    source: 'a',
+    target: 'b',
+    sourceX: 0,
+    sourceY: 0,
+    targetX: 100,
+    targetY: 100,
+    sourcePosition: 'bottom',
+    targetPosition: 'top',
+    data: { type: 'ethernet', ...data } as EdgeData,
+    selected: false,
+  } as unknown as EdgeProps<Edge<EdgeData>>
+
+  return render(
+    <ReactFlowProvider>
+      <svg>
+        <HomelableEdge {...props} />
+      </svg>
+    </ReactFlowProvider>,
+  )
+}
+
+describe('HomelableEdge label', () => {
+  it('renders the label text', () => {
+    const { getByText } = renderEdge({ label: 'uplink' })
+    expect(getByText('uplink')).toBeTruthy()
+  })
+
+  it('preserves newlines in the rendered label (issue #183)', () => {
+    const { container } = renderEdge({ label: 'line one\nline two' })
+    const label = Array.from(container.querySelectorAll('div.whitespace-pre-line')).find((d) =>
+      d.textContent === 'line one\nline two',
+    )
+    expect(label).toBeTruthy()
+  })
+
+  it('renders no label div when label is empty', () => {
+    const { container } = renderEdge({ label: undefined })
+    expect(container.querySelector('div.whitespace-pre-line')).toBeNull()
+  })
+})

frontend/src/components/canvas/edges/index.tsx

@@ -406,7 +406,7 @@ export function HomelableEdge({ id, source, target, sourceHandleId, targetHandle
       <EdgeLabelRenderer>
         {data?.label && (
           <div
-            className="absolute pointer-events-none font-mono text-[10px] px-1.5 py-0.5 rounded"
+            className="absolute pointer-events-none font-mono text-[10px] px-1.5 py-0.5 rounded whitespace-pre-line text-center"
             style={{
               transform: `translate(-50%, -50%) translate(${labelPosition.x}px, ${labelPosition.y}px)`,
               background: theme.colors.edgeLabelBackground,

frontend/src/components/canvas/nodes/BaseNode.tsx

@@ -8,7 +8,7 @@ import { NodeIcon } from '@/components/ui/NodeIcon'
 import { resolvePropertyIcon } from '@/utils/propertyIcons'
 import { useThemeStore } from '@/stores/themeStore'
 import { THEMES } from '@/utils/themes'
-import { useCanvasStore } from '@/stores/canvasStore'
+import { useCanvasStore, serviceStatusKey } from '@/stores/canvasStore'
 import { maskIp, primaryIp, splitIps } from '@/utils/maskIp'
 import { bottomHandleId, bottomHandlePositions, clampBottomHandles } from '@/utils/handleUtils'
 import { getServiceUrl } from '@/utils/serviceUrl'
@@ -31,6 +31,7 @@ export function BaseNode({ id, data, selected, icon: typeIcon, width, height }:
 
   const activeTheme = useThemeStore((s) => s.activeTheme)
   const hideIp = useCanvasStore((s) => s.hideIp)
+  const serviceStatuses = useCanvasStore((s) => s.serviceStatuses)
   const theme = THEMES[activeTheme]
 
   const resolvedIcon = resolveNodeIcon(typeIcon, data.custom_icon)
@@ -151,6 +152,7 @@ export function BaseNode({ id, data, selected, icon: typeIcon, width, height }:
           <div className="flex flex-col gap-1 px-2.5 py-1.5 overflow-hidden">
             {services.map((svc, idx) => {
               const url = getServiceUrl(svc, serviceHost)
+              const svcOffline = serviceStatuses[serviceStatusKey(id, svc.port, svc.protocol)] === 'offline'
               const row = (
                 <div
                   className="nodrag flex items-center justify-between gap-2 px-1.5 py-1 rounded text-[10px] min-w-0 overflow-hidden"
@@ -164,7 +166,7 @@ export function BaseNode({ id, data, selected, icon: typeIcon, width, height }:
                     {/* LEFT: service name */}
                     <span
                       className="font-medium truncate"
-                      style={{ minWidth: 0 }}
+                      style={{ minWidth: 0, color: svcOffline ? '#f85149' : undefined }}
                       title={svc.service_name}
                     >
                       {svc.service_name}

frontend/src/components/modals/ConfirmAddToGroupModal.tsx

@@ -0,0 +1,59 @@
+import { Layers } from 'lucide-react'
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+  DialogFooter,
+} from '@/components/ui/dialog'
+import { Button } from '@/components/ui/button'
+
+interface ConfirmAddToGroupModalProps {
+  open: boolean
+  nodeLabel: string
+  /** Label of the destination group/container. */
+  targetLabel: string
+  /** Destination kind — drives the wording. Defaults to 'group'. */
+  variant?: 'group' | 'container'
+  onConfirm: () => void
+  onCancel: () => void
+}
+
+export function ConfirmAddToGroupModal({
+  open,
+  nodeLabel,
+  targetLabel,
+  variant = 'group',
+  onConfirm,
+  onCancel,
+}: ConfirmAddToGroupModalProps) {
+  const action = variant === 'container' ? 'Add to container' : 'Add to group'
+  const noun = variant === 'container' ? 'container' : 'group'
+  return (
+    <Dialog open={open} onOpenChange={(o) => { if (!o) onCancel() }}>
+      <DialogContent className="max-w-sm">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <Layers size={16} className="text-[#00d4ff]" />
+            {action}
+          </DialogTitle>
+          <DialogDescription>
+            Add <span className="font-medium text-foreground">{nodeLabel}</span> to the {noun}{' '}
+            <span className="font-medium text-foreground">{targetLabel}</span>?
+          </DialogDescription>
+        </DialogHeader>
+        <DialogFooter>
+          <Button variant="ghost" size="sm" onClick={onCancel}>Cancel</Button>
+          <Button
+            size="sm"
+            className="bg-[#00d4ff] text-[#0d1117] hover:bg-[#00d4ff]/90"
+            onClick={onConfirm}
+          >
+            {action}
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  )
+}

frontend/src/components/modals/EdgeModal.tsx

@@ -4,6 +4,7 @@ import { RotateCcw } from 'lucide-react'
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
+import { Textarea } from '@/components/ui/textarea'
 import { Label } from '@/components/ui/label'
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
 import { EDGE_TYPE_LABELS, type EdgeData, type EdgePathStyle, type EdgeType } from '@/types'
@@ -44,7 +45,7 @@ export function EdgeModal({ open, onClose, onSubmit, onDelete, onClearWaypoints,
     e.preventDefault()
     onSubmit({
       type,
-      label: label || undefined,
+      label: label.trim() || undefined,
       vlan_id: type === 'vlan' && vlanId ? parseInt(vlanId) : undefined,
       custom_color: customColor,
       path_style: pathStyle,
@@ -96,12 +97,13 @@ export function EdgeModal({ open, onClose, onSubmit, onDelete, onClearWaypoints,
           )}
 
           <div className="flex flex-col gap-1.5">
-            <Label className="text-xs text-muted-foreground">Label <span className="text-muted-foreground/50">(optional)</span></Label>
+            <Label className="text-xs text-muted-foreground">Label <span className="text-muted-foreground/50">(optional, multi-line)</span></Label>
-            <Input
+            <Textarea
               value={label}
               onChange={(e) => setLabel(e.target.value)}
-              placeholder="e.g. 1G, trunk..."
+              placeholder={'e.g. 1G, trunk...\nsecond line'}
-              className={`bg-[#21262d] border-[#30363d] text-sm h-8 ${modalStyles['modal-radius']}`}
+              rows={2}
+              className={`bg-[#21262d] border-[#30363d] text-sm min-h-16 resize-none ${modalStyles['modal-radius']}`}
             />
           </div>
 

frontend/src/components/modals/NodeModal.tsx

@@ -55,6 +55,8 @@ interface ParentCandidate {
   id: string
   label: string
   type: NodeType
+  /** True when the node has container mode on, so any node can nest inside it. */
+  container_mode?: boolean
 }
 
 interface NodeModalProps {
@@ -98,12 +100,14 @@ export function NodeModal({ open, onClose, onSubmit, initial, title = 'Add Node'
     const selectedType = (form.type ?? 'generic') as NodeType
     const canUseContainerMode = CONTAINER_MODE_TYPES.includes(selectedType)
     const validParentTypes = getValidParentTypes(selectedType)
+    // A parent is valid either by the type rules (lxc/vm/docker_container) or
+    // because the candidate is a container-mode node (any child can nest in it).
+    const isValidParent = (p: ParentCandidate) =>
+      validParentTypes.includes(p.type) || p.container_mode === true
     let safeParentId = form.parent_id
-    if (validParentTypes.length === 0) {
+    if (safeParentId) {
-      safeParentId = undefined
-    } else if (safeParentId) {
       const parent = parentCandidates.find((n) => n.id === safeParentId)
-      if (!parent || !validParentTypes.includes(parent.type)) safeParentId = undefined
+      if (!parent || !isValidParent(parent)) safeParentId = undefined
     }
     onSubmit({
       ...form,
@@ -130,7 +134,12 @@ export function NodeModal({ open, onClose, onSubmit, initial, title = 'Add Node'
                 setForm((f) => {
                   const next: Partial<NodeData> = { ...f, type: t }
                   if (ZIGBEE_TYPES.includes(t)) next.check_method = 'none' as CheckMethod
-                  if (getValidParentTypes(t).length === 0) next.parent_id = undefined
+                  // Drop the parent only if it's no longer a valid target for the
+                  // new type — keep container-mode parents (any node can nest).
+                  const parent = parentCandidates.find((n) => n.id === f.parent_id)
+                  if (f.parent_id && !(parent && (getValidParentTypes(t).includes(parent.type) || parent.container_mode === true))) {
+                    next.parent_id = undefined
+                  }
                   return next
                 })
               }}>
@@ -349,9 +358,12 @@ export function NodeModal({ open, onClose, onSubmit, initial, title = 'Add Node'
             {(() => {
               const childType = (form.type ?? 'generic') as NodeType
               const validParentTypes = getValidParentTypes(childType)
-              if (validParentTypes.length === 0) return null
+              // Candidates: type-based parents (lxc/vm/docker_container) plus any
+              // container-mode node. The current parent is always kept so an
+              // already-nested node can be re-targeted or detached here.
               const validParents = parentCandidates.filter(
-                (n) => n.id !== currentNodeId && validParentTypes.includes(n.type),
+                (n) => n.id !== currentNodeId &&
+                  (validParentTypes.includes(n.type) || n.container_mode === true || n.id === form.parent_id),
               )
               if (validParents.length === 0) return null
               return (

frontend/src/components/modals/ScanHistoryModal.tsx

@@ -0,0 +1,311 @@
+import { useState, useEffect, useCallback, useRef } from 'react'
+import { RefreshCw, X, Loader2, StopCircle, Clock, ScanLine, Network, Inbox } from 'lucide-react'
+import { Dialog, DialogClose, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
+import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip'
+import { scanApi } from '@/api/client'
+import { useCanvasStore } from '@/stores/canvasStore'
+import { toast } from 'sonner'
+
+export interface ScanRun {
+  id: string
+  status: string
+  kind?: string
+  ranges: string[]
+  devices_found: number
+  started_at: string
+  finished_at: string | null
+  error: string | null
+}
+
+interface ScanHistoryModalProps {
+  open: boolean
+  onClose: () => void
+}
+
+type KindFilter = 'all' | 'ip' | 'zigbee'
+type StatusFilter = 'all' | 'running' | 'done' | 'error' | 'cancelled'
+
+const STATUS_FILTERS: { key: StatusFilter; label: string }[] = [
+  { key: 'all', label: 'All' },
+  { key: 'running', label: 'Running' },
+  { key: 'done', label: 'Done' },
+  { key: 'error', label: 'Error' },
+  { key: 'cancelled', label: 'Cancelled' },
+]
+
+const KIND_FILTERS: { key: KindFilter; label: string }[] = [
+  { key: 'all', label: 'All' },
+  { key: 'ip', label: 'IP' },
+  { key: 'zigbee', label: 'Zigbee' },
+]
+
+function statusColor(s: string): string {
+  return s === 'done' ? '#39d353'
+    : s === 'running' ? '#e3b341'
+    : s === 'error' ? '#f85149'
+    : s === 'cancelled' ? '#8b949e'
+    : '#8b949e'
+}
+
+function parseUtc(ts: string): number {
+  return new Date(ts.endsWith('Z') ? ts : ts + 'Z').getTime()
+}
+
+function formatDuration(ms: number): string {
+  if (ms < 0) ms = 0
+  const s = Math.floor(ms / 1000)
+  if (s < 60) return `${s}s`
+  const m = Math.floor(s / 60)
+  const rem = s % 60
+  if (m < 60) return rem ? `${m}m ${rem}s` : `${m}m`
+  const h = Math.floor(m / 60)
+  return `${h}h ${m % 60}m`
+}
+
+function runDuration(r: ScanRun, now: number): string {
+  const start = parseUtc(r.started_at)
+  const end = r.finished_at ? parseUtc(r.finished_at) : now
+  return formatDuration(end - start)
+}
+
+export function ScanHistoryModal({ open, onClose }: ScanHistoryModalProps) {
+  const [runs, setRuns] = useState<ScanRun[]>([])
+  const [loading, setLoading] = useState(false)
+  const [stopping, setStopping] = useState<string | null>(null)
+  const [kindFilter, setKindFilter] = useState<KindFilter>('all')
+  const [statusFilter, setStatusFilter] = useState<StatusFilter>('all')
+  const [now, setNow] = useState(() => Date.now())
+  const prevRunsRef = useRef<ScanRun[]>([])
+
+  const load = useCallback(async () => {
+    setLoading(true)
+    try {
+      const res = await scanApi.runs()
+      const next: ScanRun[] = res.data
+
+      // Surface transitions and refresh dependent UI
+      for (const run of next) {
+        const prev = prevRunsRef.current.find((r) => r.id === run.id)
+        if (prev?.status === 'running' && run.status === 'error') {
+          toast.error(`Scan failed: ${run.error ?? 'unknown error'}`)
+        }
+        if (prev?.status === 'running' && run.status === 'done') {
+          if (run.kind === 'zigbee') {
+            toast.success(`Zigbee import done — ${run.devices_found} device${run.devices_found !== 1 ? 's' : ''}`)
+          }
+          useCanvasStore.getState().notifyScanDeviceFound()
+        }
+      }
+      prevRunsRef.current = next
+      setRuns(next)
+    } catch {
+      toast.error('Failed to load scan history')
+    } finally {
+      setLoading(false)
+    }
+  }, [])
+
+  // Load when opened; reset prior-state tracker so we don't replay old transitions
+  useEffect(() => {
+    if (!open) return
+    prevRunsRef.current = []
+    load()
+  }, [open, load])
+
+  // Auto-refresh every 3s while any run is still running (only when open)
+  useEffect(() => {
+    if (!open) return
+    const hasRunning = runs.some((r) => r.status === 'running')
+    if (!hasRunning) return
+    const id = setInterval(load, 3000)
+    return () => clearInterval(id)
+  }, [open, runs, load])
+
+  // Tick the clock every second while a scan is running (for live elapsed duration)
+  useEffect(() => {
+    if (!open) return
+    const hasRunning = runs.some((r) => r.status === 'running')
+    if (!hasRunning) return
+    const id = setInterval(() => setNow(Date.now()), 1000)
+    return () => clearInterval(id)
+  }, [open, runs])
+
+  const handleStop = async (runId: string) => {
+    setStopping(runId)
+    try {
+      await scanApi.stop(runId)
+      toast.success('Scan stop requested')
+    } catch {
+      toast.error('Failed to stop scan')
+    } finally {
+      setStopping(null)
+    }
+  }
+
+  const filtered = runs.filter((r) => {
+    const k = r.kind === 'zigbee' ? 'zigbee' : 'ip'
+    if (kindFilter !== 'all' && k !== kindFilter) return false
+    if (statusFilter !== 'all' && r.status !== statusFilter) return false
+    return true
+  })
+
+  return (
+    <Dialog open={open} onOpenChange={(v) => { if (!v) onClose() }}>
+      <DialogContent
+        showCloseButton={false}
+        className="!max-w-none w-[90vw] max-w-2xl h-[80vh] p-0 flex flex-col gap-0 bg-[#0d1117] border-border"
+      >
+        <DialogHeader className="px-4 py-3 border-b border-border shrink-0">
+          <div className="flex items-center justify-between gap-3">
+            <DialogTitle className="text-base font-semibold flex items-center gap-2">
+              <Clock size={16} className="text-[#00d4ff]" />
+              Scan History
+              <span className="text-muted-foreground font-normal text-xs">
+                ({filtered.length}{filtered.length !== runs.length && ` of ${runs.length}`})
+              </span>
+            </DialogTitle>
+            <div className="flex items-center gap-1">
+              <button onClick={load} className="text-muted-foreground hover:text-foreground p-1.5 rounded transition-colors" title="Refresh">
+                <RefreshCw size={14} className={loading ? 'animate-spin' : undefined} />
+              </button>
+              <DialogClose
+                render={
+                  <button
+                    className="text-muted-foreground hover:text-foreground p-1.5 rounded transition-colors"
+                    aria-label="Close"
+                  />
+                }
+              >
+                <X size={14} />
+              </DialogClose>
+            </div>
+          </div>
+        </DialogHeader>
+
+        {/* Filters */}
+        <div className="px-4 py-2 border-b border-border bg-[#161b22] shrink-0 flex flex-wrap items-center gap-x-4 gap-y-2">
+          <div className="flex items-center gap-1.5">
+            <span className="text-[10px] font-medium text-muted-foreground uppercase tracking-wider">Type</span>
+            {KIND_FILTERS.map((f) => (
+              <FilterChip key={f.key} active={kindFilter === f.key} onClick={() => setKindFilter(f.key)}>
+                {f.label}
+              </FilterChip>
+            ))}
+          </div>
+          <div className="flex items-center gap-1.5">
+            <span className="text-[10px] font-medium text-muted-foreground uppercase tracking-wider">Status</span>
+            {STATUS_FILTERS.map((f) => (
+              <FilterChip key={f.key} active={statusFilter === f.key} onClick={() => setStatusFilter(f.key)}>
+                {f.label}
+              </FilterChip>
+            ))}
+          </div>
+        </div>
+
+        {/* List */}
+        <div className="flex-1 min-h-0 overflow-y-auto p-3 space-y-2">
+          {loading && runs.length === 0 && (
+            <div className="flex justify-center py-10">
+              <Loader2 size={18} className="animate-spin text-muted-foreground" />
+            </div>
+          )}
+          {!loading && filtered.length === 0 && (
+            <div className="flex flex-col items-center gap-2 py-12 text-muted-foreground">
+              <Inbox size={28} className="opacity-50" />
+              <p className="text-sm">{runs.length === 0 ? 'No scans yet' : 'No scans match the filters'}</p>
+            </div>
+          )}
+          {filtered.map((r) => {
+            const isZigbee = r.kind === 'zigbee'
+            return (
+              <div key={r.id} className="rounded-lg border border-border bg-[#161b22] p-3">
+                <div className="flex items-center gap-2">
+                  <span className="w-2 h-2 rounded-full shrink-0" style={{ backgroundColor: statusColor(r.status) }} />
+                  <span className="font-mono text-sm text-foreground capitalize">{r.status}</span>
+                  {r.status === 'running' && <Loader2 size={12} className="animate-spin text-[#e3b341]" />}
+                  <span
+                    className="inline-flex items-center gap-1 text-[10px] font-mono px-1.5 py-0.5 rounded uppercase tracking-wider"
+                    style={isZigbee
+                      ? { background: '#00d4ff22', color: '#00d4ff' }
+                      : { background: '#a855f722', color: '#a855f7' }}
+                  >
+                    {isZigbee ? <Network size={10} /> : <ScanLine size={10} />}
+                    {isZigbee ? 'Zigbee' : 'IP'}
+                  </span>
+                  <span className="ml-auto text-xs text-muted-foreground font-mono">
+                    {r.devices_found} found
+                  </span>
+                  {r.status === 'running' && (
+                    <Tooltip>
+                      <TooltipTrigger>
+                        <button
+                          aria-label="Stop scan"
+                          onClick={() => handleStop(r.id)}
+                          disabled={stopping === r.id}
+                          className="p-1 text-[#f85149] hover:bg-[#f85149]/10 rounded transition-colors disabled:opacity-50"
+                        >
+                          {stopping === r.id
+                            ? <Loader2 size={13} className="animate-spin" />
+                            : <StopCircle size={13} />}
+                        </button>
+                      </TooltipTrigger>
+                      <TooltipContent side="left">Stop scan</TooltipContent>
+                    </Tooltip>
+                  )}
+                </div>
+
+                {/* Meta grid */}
+                <div className="mt-2 grid grid-cols-2 gap-x-4 gap-y-1 text-[11px]">
+                  <Meta label="Started" value={new Date(parseUtc(r.started_at)).toLocaleString()} />
+                  <Meta
+                    label="Finished"
+                    value={r.finished_at ? new Date(parseUtc(r.finished_at)).toLocaleString() : '—'}
+                  />
+                  <Meta label="Duration" value={runDuration(r, now)} mono />
+                  <Meta label="Devices" value={`${r.devices_found}`} mono />
+                </div>
+
+                {r.ranges.length > 0 && (
+                  <div className="mt-2 text-[11px]">
+                    <span className="text-muted-foreground">Ranges: </span>
+                    <span className="text-[#8b949e] font-mono break-all">{r.ranges.join(', ')}</span>
+                  </div>
+                )}
+
+                {r.error && (
+                  <div className="mt-2 text-[11px] text-[#f85149] leading-tight whitespace-pre-wrap break-words rounded bg-[#f85149]/10 px-2 py-1.5">
+                    {r.error}
+                  </div>
+                )}
+              </div>
+            )
+          })}
+        </div>
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+function FilterChip({ active, onClick, children }: { active: boolean; onClick: () => void; children: React.ReactNode }) {
+  return (
+    <button
+      onClick={onClick}
+      className={`text-[11px] px-2 py-0.5 rounded-full border transition-colors cursor-pointer ${
+        active
+          ? 'bg-[#00d4ff]/10 border-[#00d4ff]/40 text-[#00d4ff]'
+          : 'border-border text-muted-foreground hover:text-foreground hover:border-[#30363d]'
+      }`}
+    >
+      {children}
+    </button>
+  )
+}
+
+function Meta({ label, value, mono }: { label: string; value: string; mono?: boolean }) {
+  return (
+    <div className="flex flex-col">
+      <span className="text-muted-foreground text-[10px] uppercase tracking-wider">{label}</span>
+      <span className={`text-foreground ${mono ? 'font-mono' : ''}`}>{value}</span>
+    </div>
+  )
+}

frontend/src/components/modals/SettingsModal.tsx

@@ -20,6 +20,8 @@ interface SettingsModalProps {
 
 export function SettingsModal({ open, onClose }: SettingsModalProps) {
   const [interval, setIntervalValue] = useState(60)
+  const [serviceCheckEnabled, setServiceCheckEnabled] = useState(false)
+  const [serviceInterval, setServiceInterval] = useState(300)
   const [saving, setSaving] = useState(false)
   const [alignment, setAlignment] = useState<AlignmentSettings>(readAlignmentSettings)
   const hideIp = useCanvasStore((s) => s.hideIp)
@@ -28,7 +30,11 @@ export function SettingsModal({ open, onClose }: SettingsModalProps) {
   useEffect(() => {
     if (!open || STANDALONE) return
     settingsApi.get()
-      .then((res) => setIntervalValue(res.data.interval_seconds))
+      .then((res) => {
+        setIntervalValue(res.data.interval_seconds)
+        setServiceCheckEnabled(res.data.service_check_enabled)
+        setServiceInterval(res.data.service_check_interval)
+      })
       .catch(() => {/* use default */})
   }, [open])
 
@@ -49,7 +55,11 @@ export function SettingsModal({ open, onClose }: SettingsModalProps) {
     }
     setSaving(true)
     try {
-      await settingsApi.save({ interval_seconds: interval })
+      await settingsApi.save({
+        interval_seconds: interval,
+        service_check_enabled: serviceCheckEnabled,
+        service_check_interval: serviceInterval,
+      })
       toast.success('Settings saved')
       onClose()
     } catch {
@@ -85,6 +95,36 @@ export function SettingsModal({ open, onClose }: SettingsModalProps) {
             <p className="text-[10px] text-muted-foreground leading-tight">
               How often node health is polled (ping, HTTP, SSH…)
             </p>
+
+            <label className="flex items-center justify-between gap-2 cursor-pointer pt-2">
+              <span className="text-xs text-foreground">Check services individually</span>
+              <input
+                type="checkbox"
+                checked={serviceCheckEnabled}
+                onChange={(e) => setServiceCheckEnabled(e.target.checked)}
+                className="cursor-pointer accent-[#00d4ff]"
+                aria-label="Toggle per-service status checks"
+              />
+            </label>
+
+            <div className={serviceCheckEnabled ? 'space-y-1.5' : 'space-y-1.5 opacity-50 pointer-events-none'}>
+              <label className="text-xs text-muted-foreground">Service check interval (s)</label>
+              <div className="flex items-center gap-2">
+                <input
+                  type="number"
+                  min={30}
+                  max={3600}
+                  value={serviceInterval}
+                  onChange={(e) => { const v = Number(e.target.value); if (!isNaN(v)) setServiceInterval(v) }}
+                  className="w-24 px-2 py-1 rounded-md text-xs font-mono bg-[#0d1117] border border-border text-foreground focus:outline-none focus:border-[#00d4ff]"
+                  aria-label="Service check interval"
+                />
+                <span className="text-xs text-muted-foreground">seconds</span>
+              </div>
+              <p className="text-[10px] text-muted-foreground leading-tight">
+                Probes each service port. Offline services turn red. Default 300s (5 min).
+              </p>
+            </div>
           </div>
           )}
 

frontend/src/components/modals/__tests__/ConfirmAddToGroupModal.test.tsx

@@ -0,0 +1,46 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import { ConfirmAddToGroupModal } from '../ConfirmAddToGroupModal'
+
+describe('ConfirmAddToGroupModal', () => {
+  it('renders nothing when closed', () => {
+    render(
+      <ConfirmAddToGroupModal open={false} nodeLabel="Router" targetLabel="DMZ" onConfirm={vi.fn()} onCancel={vi.fn()} />,
+    )
+    expect(screen.queryByText('Add to group')).toBeNull()
+  })
+
+  it('shows node and group labels when open', () => {
+    render(
+      <ConfirmAddToGroupModal open nodeLabel="Router" targetLabel="DMZ" onConfirm={vi.fn()} onCancel={vi.fn()} />,
+    )
+    expect(screen.getByText('Router')).toBeDefined()
+    expect(screen.getByText('DMZ')).toBeDefined()
+  })
+
+  it('calls onConfirm when the confirm button is clicked', () => {
+    const onConfirm = vi.fn()
+    render(
+      <ConfirmAddToGroupModal open nodeLabel="Router" targetLabel="DMZ" onConfirm={onConfirm} onCancel={vi.fn()} />,
+    )
+    fireEvent.click(screen.getByRole('button', { name: /add to group/i }))
+    expect(onConfirm).toHaveBeenCalledOnce()
+  })
+
+  it('calls onCancel when the cancel button is clicked', () => {
+    const onCancel = vi.fn()
+    render(
+      <ConfirmAddToGroupModal open nodeLabel="Router" targetLabel="DMZ" onConfirm={vi.fn()} onCancel={onCancel} />,
+    )
+    fireEvent.click(screen.getByRole('button', { name: /cancel/i }))
+    expect(onCancel).toHaveBeenCalledOnce()
+  })
+
+  it('uses container wording when variant is container', () => {
+    render(
+      <ConfirmAddToGroupModal open variant="container" nodeLabel="VM" targetLabel="Proxmox" onConfirm={vi.fn()} onCancel={vi.fn()} />,
+    )
+    expect(screen.getByRole('button', { name: /add to container/i })).toBeDefined()
+    expect(screen.queryByText('Add to group')).toBeNull()
+  })
+})

frontend/src/components/modals/__tests__/EdgeModal.test.tsx

@@ -47,11 +47,32 @@ describe('EdgeModal', () => {
   it('calls onSubmit with label when filled', () => {
     const onSubmit = vi.fn()
     render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
-    fireEvent.change(screen.getByPlaceholderText('e.g. 1G, trunk...'), { target: { value: 'uplink' } })
+    fireEvent.change(screen.getByPlaceholderText(/e\.g\. 1G, trunk/), { target: { value: 'uplink' } })
     fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
     expect(onSubmit.mock.calls[0][0].label).toBe('uplink')
   })
 
+  it('preserves newlines in label so it can span multiple lines (issue #183)', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.change(screen.getByPlaceholderText(/e\.g\. 1G, trunk/), { target: { value: 'line one\nline two' } })
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].label).toBe('line one\nline two')
+  })
+
+  it('trims surrounding whitespace/blank lines from label on submit', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.change(screen.getByPlaceholderText(/e\.g\. 1G, trunk/), { target: { value: '  a\nb\n\n' } })
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].label).toBe('a\nb')
+  })
+
+  it('renders the label field as a textarea (multi-line input)', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(screen.getByPlaceholderText(/e\.g\. 1G, trunk/).tagName).toBe('TEXTAREA')
+  })
+
   it('omits label from payload when empty', () => {
     const onSubmit = vi.fn()
     render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
@@ -171,7 +192,7 @@ describe('EdgeModal', () => {
 
   it('pre-fills label from initial prop', () => {
     render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} initial={{ label: 'trunk' }} />)
-    const input = screen.getByPlaceholderText('e.g. 1G, trunk...') as HTMLInputElement
+    const input = screen.getByPlaceholderText(/e\.g\. 1G, trunk/) as HTMLTextAreaElement
     expect(input.value).toBe('trunk')
   })
 

frontend/src/components/modals/__tests__/NodeModal.test.tsx

@@ -353,6 +353,48 @@ describe('NodeModal', () => {
     expect(screen.getByText('Parent Container')).toBeDefined()
   })
 
+  it('renders Parent Container for a plain node when a container-mode candidate exists', () => {
+    renderModal({
+      initial: { ...BASE, type: 'server' },
+      parentCandidates: [{ id: 'px1', label: 'PVE', type: 'proxmox', container_mode: true }],
+    })
+    expect(screen.getByText('Parent Container')).toBeDefined()
+  })
+
+  it('still hides Parent Container for a plain node when the candidate is not in container mode', () => {
+    renderModal({
+      initial: { ...BASE, type: 'server' },
+      parentCandidates: [{ id: 'px1', label: 'PVE', type: 'proxmox', container_mode: false }],
+    })
+    expect(screen.queryByText('Parent Container')).toBeNull()
+  })
+
+  it('renders Parent Container for an already-nested plain node so it can be detached', () => {
+    renderModal({
+      initial: { ...BASE, type: 'server', parent_id: 'px1' },
+      parentCandidates: [{ id: 'px1', label: 'PVE', type: 'proxmox', container_mode: true }],
+    })
+    expect(screen.getByText('Parent Container')).toBeDefined()
+  })
+
+  it('keeps a container-mode parent_id on submit for a plain node', () => {
+    const { onSubmit } = renderModal({
+      initial: { ...BASE, type: 'server', parent_id: 'px1' },
+      parentCandidates: [{ id: 'px1', label: 'PVE', type: 'proxmox', container_mode: true }],
+    })
+    fireEvent.click(screen.getByRole('button', { name: 'Add' }))
+    expect((onSubmit.mock.calls[0][0] as Partial<NodeData>).parent_id).toBe('px1')
+  })
+
+  it('drops a parent_id that is not a valid container on submit', () => {
+    const { onSubmit } = renderModal({
+      initial: { ...BASE, type: 'server', parent_id: 'px1' },
+      parentCandidates: [{ id: 'px1', label: 'PVE', type: 'proxmox', container_mode: false }],
+    })
+    fireEvent.click(screen.getByRole('button', { name: 'Add' }))
+    expect((onSubmit.mock.calls[0][0] as Partial<NodeData>).parent_id).toBeUndefined()
+  })
+
   // ── Appearance ────────────────────────────────────────────────────────
 
   it('renders 3 color swatch labels (border, background, icon)', () => {

frontend/src/components/modals/__tests__/ScanHistoryModal.test.tsx

@@ -1,21 +1,17 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest'
 import { render, screen, fireEvent, waitFor } from '@testing-library/react'
-import { Sidebar } from '../Sidebar'
+import { ScanHistoryModal } from '../ScanHistoryModal'
-import * as canvasStore from '@/stores/canvasStore'
 import { TooltipProvider } from '@/components/ui/tooltip'
 
-vi.mock('@/stores/canvasStore')
 vi.mock('sonner', () => ({ toast: { success: vi.fn(), error: vi.fn() } }))
+vi.mock('@/stores/canvasStore', () => ({
+  useCanvasStore: { getState: () => ({ notifyScanDeviceFound: vi.fn() }) },
+}))
 vi.mock('@/api/client', () => ({
   scanApi: {
-    trigger: vi.fn(),
-    pending: vi.fn().mockResolvedValue({ data: [] }),
-    hidden: vi.fn().mockResolvedValue({ data: [] }),
     runs: vi.fn().mockResolvedValue({ data: [] }),
     stop: vi.fn(),
-    getConfig: vi.fn().mockResolvedValue({ data: { ranges: [] } }),
   },
-  settingsApi: { get: vi.fn(), save: vi.fn() },
 }))
 
 import { scanApi } from '@/api/client'
@@ -24,9 +20,10 @@ import { toast } from 'sonner'
 const RUNNING_RUN = {
   id: 'run-1',
   status: 'running',
+  kind: 'ip',
   ranges: ['192.168.1.0/24'],
   devices_found: 2,
-  started_at: new Date().toISOString(),
+  started_at: new Date(Date.now() - 5000).toISOString(),
   finished_at: null,
   error: null,
 }
@@ -34,16 +31,18 @@ const RUNNING_RUN = {
 const DONE_RUN = {
   id: 'run-2',
   status: 'done',
+  kind: 'ip',
   ranges: ['192.168.1.0/24'],
   devices_found: 3,
-  started_at: new Date().toISOString(),
+  started_at: new Date(Date.now() - 60000).toISOString(),
-  finished_at: new Date().toISOString(),
+  finished_at: new Date(Date.now() - 30000).toISOString(),
   error: null,
 }
 
 const CANCELLED_RUN = {
   id: 'run-3',
   status: 'cancelled',
+  kind: 'ip',
   ranges: ['192.168.1.0/24'],
   devices_found: 1,
   started_at: new Date().toISOString(),
@@ -51,36 +50,26 @@ const CANCELLED_RUN = {
   error: null,
 }
 
-function renderSidebar() {
+const ZIGBEE_RUN = {
-  vi.mocked(canvasStore.useCanvasStore).mockReturnValue({
+  id: 'run-4',
-    nodes: [],
+  status: 'done',
-    hasUnsavedChanges: false,
+  kind: 'zigbee',
-    hideIp: false,
+  ranges: [],
-    toggleHideIp: vi.fn(),
+  devices_found: 7,
-    addNode: vi.fn(),
+  started_at: new Date().toISOString(),
-    scanEventTs: 0,
+  finished_at: new Date().toISOString(),
-  } as unknown as ReturnType<typeof canvasStore.useCanvasStore>)
+  error: null,
+}
 
+function renderModal() {
   return render(
     <TooltipProvider>
-      <Sidebar
+      <ScanHistoryModal open onClose={vi.fn()} />
-        onAddNode={vi.fn()}
-        onAddGroupRect={vi.fn()}
-        onScan={vi.fn()}
-        onSave={vi.fn()}
-        onNodeApproved={vi.fn()}
-      />
     </TooltipProvider>
   )
 }
 
-async function openHistory() {
+describe('ScanHistoryModal', () => {
-  fireEvent.click(screen.getByRole('button', { name: 'Scan History' }))
-  // Wait for runs to load
-  await waitFor(() => expect(scanApi.runs).toHaveBeenCalled())
-}
-
-describe('ScanHistoryPanel — stop scan', () => {
   beforeEach(() => {
     vi.mocked(toast.success).mockReset()
     vi.mocked(toast.error).mockReset()
@@ -88,68 +77,82 @@ describe('ScanHistoryPanel — stop scan', () => {
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [] } as never)
   })
 
+  it('loads runs when opened', async () => {
+    vi.mocked(scanApi.runs).mockResolvedValue({ data: [DONE_RUN] } as never)
+    renderModal()
+    await waitFor(() => expect(scanApi.runs).toHaveBeenCalled())
+    expect(await screen.findByText('done')).toBeDefined()
+  })
+
+  it('shows empty state when no scans', async () => {
+    renderModal()
+    expect(await screen.findByText('No scans yet')).toBeDefined()
+  })
+
   it('shows stop button only for running scans', async () => {
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [RUNNING_RUN, DONE_RUN] } as never)
-    renderSidebar()
+    renderModal()
-    await openHistory()
-
     await waitFor(() => expect(screen.getByText('running')).toBeDefined())
-
+    expect(screen.getAllByRole('button', { name: 'Stop scan' })).toHaveLength(1)
-    // Exactly one stop button rendered (for the running scan only)
-    const stopButtons = screen.getAllByRole('button', { name: 'Stop scan' })
-    expect(stopButtons).toHaveLength(1)
   })
 
-  it('calls scanApi.stop with the correct run ID on click', async () => {
+  it('calls scanApi.stop with the correct run ID', async () => {
     vi.mocked(scanApi.stop).mockResolvedValue({ data: { stopping: true } } as never)
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [RUNNING_RUN] } as never)
-    renderSidebar()
+    renderModal()
-    await openHistory()
-
     const stopBtn = await screen.findByRole('button', { name: 'Stop scan' })
     fireEvent.click(stopBtn)
-
+    await waitFor(() => expect(scanApi.stop).toHaveBeenCalledWith('run-1'))
-    await waitFor(() => {
-      expect(scanApi.stop).toHaveBeenCalledWith('run-1')
-    })
   })
 
   it('shows success toast when stop succeeds', async () => {
     vi.mocked(scanApi.stop).mockResolvedValue({ data: { stopping: true } } as never)
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [RUNNING_RUN] } as never)
-    renderSidebar()
+    renderModal()
-    await openHistory()
-
     const stopBtn = await screen.findByRole('button', { name: 'Stop scan' })
     fireEvent.click(stopBtn)
-
+    await waitFor(() => expect(toast.success).toHaveBeenCalledWith('Scan stop requested'))
-    await waitFor(() => {
-      expect(toast.success).toHaveBeenCalledWith('Scan stop requested')
-    })
   })
 
   it('shows error toast when stop fails', async () => {
     vi.mocked(scanApi.stop).mockRejectedValue(new Error('network'))
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [RUNNING_RUN] } as never)
-    renderSidebar()
+    renderModal()
-    await openHistory()
-
     const stopBtn = await screen.findByRole('button', { name: 'Stop scan' })
     fireEvent.click(stopBtn)
-
+    await waitFor(() => expect(toast.error).toHaveBeenCalledWith('Failed to stop scan'))
-    await waitFor(() => {
-      expect(toast.error).toHaveBeenCalledWith('Failed to stop scan')
-    })
   })
 
-  it('renders cancelled status without stop button or spinner', async () => {
+  it('renders cancelled status without a stop button', async () => {
     vi.mocked(scanApi.runs).mockResolvedValue({ data: [CANCELLED_RUN] } as never)
-    renderSidebar()
+    renderModal()
-    await openHistory()
-
     await waitFor(() => expect(screen.getByText('cancelled')).toBeDefined())
-
-    // No stop button
     expect(screen.queryByRole('button', { name: 'Stop scan' })).toBeNull()
   })
+
+  it('shows duration for a finished run', async () => {
+    vi.mocked(scanApi.runs).mockResolvedValue({ data: [DONE_RUN] } as never)
+    renderModal()
+    // DONE_RUN ran 30s
+    expect(await screen.findByText('30s')).toBeDefined()
+  })
+
+  it('filters by status', async () => {
+    vi.mocked(scanApi.runs).mockResolvedValue({ data: [RUNNING_RUN, DONE_RUN] } as never)
+    renderModal()
+    await waitFor(() => expect(screen.getByText('done')).toBeDefined())
+    fireEvent.click(screen.getByRole('button', { name: 'Running' }))
+    expect(screen.queryByText('done')).toBeNull()
+    expect(screen.getByText('running')).toBeDefined()
+  })
+
+  it('filters by kind', async () => {
+    vi.mocked(scanApi.runs).mockResolvedValue({ data: [DONE_RUN, ZIGBEE_RUN] } as never)
+    renderModal()
+    await waitFor(() => expect(screen.getAllByText('done').length).toBe(2))
+    fireEvent.click(screen.getByRole('button', { name: 'Zigbee' }))
+    // Only the zigbee run (7 found) remains
+    expect(screen.getByText('7 found')).toBeDefined()
+    expect(screen.queryByText('3 found')).toBeNull()
+  })
 })

frontend/src/components/modals/__tests__/SettingsModal.test.tsx

@@ -17,8 +17,8 @@ import { useCanvasStore } from '@/stores/canvasStore'
 describe('SettingsModal', () => {
   beforeEach(() => {
     vi.clearAllMocks()
-    vi.mocked(settingsApi.get).mockResolvedValue({ data: { interval_seconds: 60 } } as never)
+    vi.mocked(settingsApi.get).mockResolvedValue({ data: { interval_seconds: 60, service_check_enabled: false, service_check_interval: 300 } } as never)
-    vi.mocked(settingsApi.save).mockResolvedValue({ data: { interval_seconds: 60 } } as never)
+    vi.mocked(settingsApi.save).mockResolvedValue({ data: { interval_seconds: 60, service_check_enabled: false, service_check_interval: 300 } } as never)
     vi.mocked(toast.success).mockReset()
     vi.mocked(toast.error).mockReset()
   })
@@ -47,7 +47,7 @@ describe('SettingsModal', () => {
     fireEvent.change(input, { target: { value: '180' } })
     fireEvent.click(screen.getByRole('button', { name: 'Save' }))
     await waitFor(() => {
-      expect(settingsApi.save).toHaveBeenCalledWith({ interval_seconds: 180 })
+      expect(settingsApi.save).toHaveBeenCalledWith({ interval_seconds: 180, service_check_enabled: false, service_check_interval: 300 })
       expect(toast.success).toHaveBeenCalledWith('Settings saved')
       expect(onClose).toHaveBeenCalled()
     })
@@ -76,6 +76,22 @@ describe('SettingsModal', () => {
     expect(localStorage.getItem('homelable.hideIp')).toBe('true')
   })
 
+  it('loads and toggles the per-service check setting, saving its interval', async () => {
+    vi.mocked(settingsApi.get).mockResolvedValue({ data: { interval_seconds: 60, service_check_enabled: true, service_check_interval: 600 } } as never)
+    render(<SettingsModal open onClose={vi.fn()} />)
+    const toggle = await screen.findByLabelText('Toggle per-service status checks') as HTMLInputElement
+    // The toggle label renders immediately; its checked state only flips once
+    // settingsApi.get() resolves, so wait for that before asserting.
+    await waitFor(() => expect(toggle.checked).toBe(true))
+    expect(await screen.findByDisplayValue('600')).toBeDefined()
+
+    fireEvent.click(toggle) // disable
+    fireEvent.click(screen.getByRole('button', { name: 'Save' }))
+    await waitFor(() => {
+      expect(settingsApi.save).toHaveBeenCalledWith({ interval_seconds: 60, service_check_enabled: false, service_check_interval: 600 })
+    })
+  })
+
   it('calls onClose on Cancel', async () => {
     const onClose = vi.fn()
     render(<SettingsModal open onClose={onClose} />)

frontend/src/components/panels/DetailPanel.tsx

@@ -1,10 +1,10 @@
-import { createElement, useState } from 'react'
+import { createElement, useRef, useState } from 'react'
 import { X, Edit, Trash2, ExternalLink, Plus, Pencil, Layers, Ungroup, Eye, EyeOff } from 'lucide-react'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 
-import { useCanvasStore } from '@/stores/canvasStore'
+import { useCanvasStore, serviceStatusKey } from '@/stores/canvasStore'
-import { NODE_TYPE_LABELS, STATUS_COLORS, type ServiceInfo, type NodeData, type NodeProperty } from '@/types'
+import { NODE_TYPE_LABELS, STATUS_COLORS, type ServiceInfo, type ServiceStatus, type NodeData, type NodeProperty } from '@/types'
 import { getServiceUrl } from '@/utils/serviceUrl'
 import { splitIps } from '@/utils/maskIp'
 import { PROPERTY_ICONS, PROPERTY_ICON_NAMES, resolvePropertyIcon } from '@/utils/propertyIcons'
@@ -21,7 +21,8 @@ type PropForm = { key: string; value: string; icon: string | null; visible: bool
 const EMPTY_PROP: PropForm = { key: '', value: '', icon: null, visible: true }
 
 export function DetailPanel({ onEdit }: DetailPanelProps) {
-  const { nodes, selectedNodeId, selectedNodeIds, setSelectedNode, deleteNode, updateNode, snapshotHistory, createGroup, ungroup } = useCanvasStore()
+  const { nodes, selectedNodeId, selectedNodeIds, setSelectedNode, deleteNode, updateNode, snapshotHistory, createGroup, ungroup, removeFromGroup } = useCanvasStore()
+  const serviceStatuses = useCanvasStore((s) => s.serviceStatuses)
 
   const [addingForNode, setAddingForNode] = useState<string | null>(null)
   const [newSvc, setNewSvc] = useState<SvcForm>(EMPTY_FORM)
@@ -64,6 +65,9 @@ export function DetailPanel({ onEdit }: DetailPanelProps) {
         node={node}
         nodes={nodes}
         onUngroup={() => { ungroup(node.id) }}
+        onRemoveChild={(id) => { snapshotHistory(); removeFromGroup(node.id, id) }}
+        onChangeDescription={(value) => updateNode(node.id, { notes: value })}
+        onSnapshotBeforeEdit={snapshotHistory}
         onToggleBorder={() => {
           snapshotHistory()
           updateNode(node.id, {
@@ -314,7 +318,7 @@ export function DetailPanel({ onEdit }: DetailPanelProps) {
               editingIndex === i ? (
                 <ServiceForm key={`edit-${i}`} form={editSvc} onChange={setEditSvc} onConfirm={handleSaveEdit} onCancel={() => setEditingFor(null)} confirmLabel="Save" autoFocus />
               ) : (
-                <ServiceBadge key={`${svc.port ?? 'host'}-${svc.protocol}-${svc.path ?? ''}-${i}`} svc={svc} host={host} onEdit={() => handleStartEdit(i)} onRemove={() => handleRemoveService(i)} />
+                <ServiceBadge key={`${svc.port ?? 'host'}-${svc.protocol}-${svc.path ?? ''}-${i}`} svc={svc} host={host} status={serviceStatuses[serviceStatusKey(node.id, svc.port, svc.protocol)]} onEdit={() => handleStartEdit(i)} onRemove={() => handleRemoveService(i)} />
               )
             )}
           </div>
@@ -425,17 +429,33 @@ interface GroupDetailPanelProps {
   node: Node<NodeData>
   nodes: Node<NodeData>[]
   onUngroup: () => void
+  onRemoveChild: (id: string) => void
+  onChangeDescription: (value: string) => void
+  onSnapshotBeforeEdit: () => void
   onToggleBorder: () => void
   onClose: () => void
   onSelectChild: (id: string) => void
 }
 
-function GroupDetailPanel({ node, nodes, onUngroup, onToggleBorder, onClose, onSelectChild }: GroupDetailPanelProps) {
+function GroupDetailPanel({ node, nodes, onUngroup, onRemoveChild, onChangeDescription, onSnapshotBeforeEdit, onToggleBorder, onClose, onSelectChild }: GroupDetailPanelProps) {
   const children = nodes.filter((n) => n.parentId === node.id)
   const onlineCount = children.filter((n) => n.data.status === 'online').length
   const offlineCount = children.filter((n) => n.data.status === 'offline').length
   const showBorder = node.data.custom_colors?.show_border !== false
 
+  // Description reuses data.notes, which already round-trips to the backend.
+  // Controlled + committed on every keystroke so ANY save path (incl. Ctrl+S,
+  // which never blurs the field) captures it. History is snapshotted once at the
+  // start of an edit session so the whole edit is a single undo step.
+  const snappedRef = useRef(false)
+  const handleDescriptionChange = (value: string) => {
+    if (!snappedRef.current) {
+      onSnapshotBeforeEdit()
+      snappedRef.current = true
+    }
+    onChangeDescription(value)
+  }
+
   const handleUngroup = () => {
     if (confirm(`Ungroup "${node.data.label}"? Nodes will be released to the canvas.`)) {
       onUngroup()
@@ -461,20 +481,48 @@ function GroupDetailPanel({ node, nodes, onUngroup, onToggleBorder, onClose, onS
         {offlineCount > 0 && <span style={{ color: STATUS_COLORS.offline }}>● {offlineCount} offline</span>}
       </div>
 
+      {/* Description */}
+      <div className="px-4 py-3 border-b border-border">
+        <label htmlFor="group-description" className="text-[10px] font-semibold uppercase tracking-wider text-muted-foreground/50">
+          Description
+        </label>
+        <textarea
+          id="group-description"
+          value={node.data.notes ?? ''}
+          onFocus={() => { snappedRef.current = false }}
+          onChange={(e) => handleDescriptionChange(e.target.value)}
+          placeholder="Add a description for this group…"
+          rows={3}
+          className="mt-1.5 w-full resize-y rounded-md bg-[#21262d] border border-[#30363d] px-2 py-1.5 text-xs text-foreground placeholder:text-muted-foreground/40 focus:outline-none focus:border-[#00d4ff]/50"
+        />
+      </div>
+
       {/* Children list */}
       <div className="flex-1 px-4 py-3 space-y-1.5 overflow-y-auto">
         <span className="text-[10px] font-semibold uppercase tracking-wider text-muted-foreground/50">Members</span>
         {children.length === 0 && <p className="text-xs text-muted-foreground/50">No nodes in this group.</p>}
         {children.map((child) => (
-          <button
+          <div
             key={child.id}
+            className="group/member w-full flex items-center gap-2 px-2 py-1.5 rounded-md bg-[#21262d] text-xs hover:bg-[#30363d] transition-colors"
+          >
+            <button
               onClick={() => onSelectChild(child.id)}
-            className="w-full flex items-center gap-2 px-2 py-1.5 rounded-md bg-[#21262d] text-xs hover:bg-[#30363d] transition-colors text-left"
+              className="flex items-center gap-2 min-w-0 flex-1 text-left cursor-pointer"
             >
               <span className="w-1.5 h-1.5 rounded-full shrink-0" style={{ backgroundColor: STATUS_COLORS[child.data.status] }} />
               <span className="truncate text-foreground font-medium">{child.data.label}</span>
               <span className="ml-auto text-muted-foreground shrink-0">{NODE_TYPE_LABELS[child.data.type] ?? child.data.type}</span>
             </button>
+            <button
+              onClick={() => onRemoveChild(child.id)}
+              aria-label={`Remove ${child.data.label} from group`}
+              title="Remove from group"
+              className="shrink-0 opacity-0 group-hover/member:opacity-100 transition-opacity text-[#8b949e] hover:text-[#f85149] cursor-pointer"
+            >
+              <X size={12} />
+            </button>
+          </div>
         ))}
       </div>
 
@@ -673,9 +721,13 @@ const CATEGORY_COLORS: Record<string, string> = {
   web: '#00d4ff', database: '#a855f7', monitoring: '#39d353', storage: '#e3b341', security: '#f85149', remote: '#8b949e',
 }
 
-function ServiceBadge({ svc, host, onEdit, onRemove }: { svc: ServiceInfo; host?: string; onEdit: () => void; onRemove: () => void }) {
+function ServiceBadge({ svc, host, status, onEdit, onRemove }: { svc: ServiceInfo; host?: string; status?: ServiceStatus; onEdit: () => void; onRemove: () => void }) {
   const url = getServiceUrl(svc, host)
-  const color = CATEGORY_COLORS[svc.category ?? ''] ?? '#8b949e'
+  // Manually-added services carry no category, so they fell back to grey even
+  // when they're reachable HTTP/HTTPS. Treat any resolvable web URL as `web`.
+  const categoryColor = CATEGORY_COLORS[svc.category ?? ''] ?? (url ? CATEGORY_COLORS.web : '#8b949e')
+  // A live offline service overrides the category colour with red.
+  const color = status === 'offline' ? '#f85149' : categoryColor
   const pathLabel = svc.path?.trim() ? svc.path.trim() : ''
 
   return (

frontend/src/components/panels/Sidebar.tsx

@@ -1,11 +1,11 @@
-import { useState, useCallback, useEffect, useRef } from 'react'
+import { useState, useCallback } from 'react'
-import { Plus, Save, ScanLine, ChevronLeft, ChevronRight, LayoutDashboard, Clock, EyeOff, RefreshCw, Loader2, Square, Settings, StopCircle, LogOut, Network, Type, PlusCircle, Pencil, Trash2 } from 'lucide-react'
+import { Plus, Save, ScanLine, ChevronLeft, ChevronRight, LayoutDashboard, Clock, EyeOff, Square, Settings, LogOut, Network, Type, PlusCircle, Pencil, Trash2 } from 'lucide-react'
 import { Logo } from '@/components/ui/Logo'
 import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip'
 import { useCanvasStore } from '@/stores/canvasStore'
 import { useDesignStore } from '@/stores/designStore'
 import { useAuthStore } from '@/stores/authStore'
-import { designsApi, scanApi } from '@/api/client'
+import { designsApi } from '@/api/client'
 import { resolveDesignIcon, DEFAULT_DESIGN_ICON } from '@/utils/designIcons'
 import { DesignModal, type DesignFormData } from '@/components/modals/DesignModal'
 import type { Design } from '@/types'
@@ -14,24 +14,11 @@ import { useLatestRelease } from '@/hooks/useLatestRelease'
 
 const STANDALONE = import.meta.env.VITE_STANDALONE === 'true'
 
-type SidebarView = 'canvas' | 'history'
-
 const PENDING_TRIGGERS: { kind: 'pending' | 'hidden'; icon: typeof ScanLine; label: string }[] = [
   { kind: 'pending', icon: ScanLine, label: 'Pending Devices' },
   { kind: 'hidden', icon: EyeOff, label: 'Hidden Devices' },
 ]
 
-interface ScanRun {
-  id: string
-  status: string
-  kind?: string
-  ranges: string[]
-  devices_found: number
-  started_at: string
-  finished_at: string | null
-  error: string | null
-}
-
 interface SidebarProps {
   onAddNode: () => void
   onAddGroupRect: () => void
@@ -40,14 +27,12 @@ interface SidebarProps {
   onZigbeeImport: () => void
   onSave: () => void
   onOpenSettings: () => void
-  forceView?: SidebarView
+  onOpenHistory: () => void
   onOpenPending: (deviceId?: string, status?: 'pending' | 'hidden') => void
 }
 
-export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbeeImport, onSave, onOpenSettings, forceView, onOpenPending }: SidebarProps) {
+export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbeeImport, onSave, onOpenSettings, onOpenHistory, onOpenPending }: SidebarProps) {
   const [collapsed, setCollapsed] = useState(false)
-  const [activeView, setActiveView] = useState<SidebarView>(forceView ?? 'canvas')
-  const [prevForceView, setPrevForceView] = useState(forceView)
   const logout = useAuthStore((s) => s.logout)
   const { designs, activeDesignId, setActiveDesign, addDesign, updateDesign, removeDesign } = useDesignStore()
   const [designSwitcherOpen, setDesignSwitcherOpen] = useState(false)
@@ -81,15 +66,6 @@ export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbee
     }
   }, [designs.length, removeDesign])
 
-  // forceView acts as a one-shot trigger from parent; user clicks afterwards still control view.
-  if (forceView !== prevForceView) {
-    setPrevForceView(forceView)
-    if (forceView) {
-      setActiveView(forceView)
-      setCollapsed(false)
-    }
-  }
-
   const { nodes, hasUnsavedChanges } = useCanvasStore()
 
   const networkNodes = nodes.filter((n) => n.data.type !== 'groupRect' && n.data.type !== 'text')
@@ -193,8 +169,7 @@ export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbee
           icon={LayoutDashboard}
           label="Canvas"
           collapsed={collapsed}
-          active={activeView === 'canvas'}
+          active
-          onClick={() => setActiveView('canvas')}
         />
         {!STANDALONE && PENDING_TRIGGERS.map((t) => (
           <SidebarItem
@@ -210,23 +185,12 @@ export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbee
             icon={Clock}
             label="Scan History"
             collapsed={collapsed}
-            active={activeView === 'history'}
+            onClick={onOpenHistory}
-            onClick={() => setActiveView('history')}
           />
         )}
       </nav>
 
-      {/* View content (only when expanded) */}
+      {!collapsed && <div className="flex-1" />}
-      {!collapsed && activeView !== 'canvas' && (
-        <div className="flex-1 min-h-0 overflow-y-auto border-t border-border">
-          {activeView === 'history' && <ScanHistoryPanel />}
-        </div>
-      )}
-
-      {/* Stats (only on canvas view) */}
-      {!collapsed && activeView === 'canvas' && (
-        <div className="flex-1" />
-      )}
 
       {/* Stats footer */}
       {!collapsed && (
@@ -294,136 +258,6 @@ export function Sidebar({ onAddNode, onAddGroupRect, onAddText, onScan, onZigbee
   )
 }
 
-
-function ScanHistoryPanel() {
-  const [runs, setRuns] = useState<ScanRun[]>([])
-  const [loading, setLoading] = useState(false)
-  const prevRunsRef = useRef<ScanRun[]>([])
-
-  const load = useCallback(async () => {
-    setLoading(true)
-    try {
-      const res = await scanApi.runs()
-      const next: ScanRun[] = res.data
-
-      // Surface transitions and refresh dependent UI
-      for (const run of next) {
-        const prev = prevRunsRef.current.find((r) => r.id === run.id)
-        if (prev?.status === 'running' && run.status === 'error') {
-          toast.error(`Scan failed: ${run.error ?? 'unknown error'}`)
-        }
-        if (prev?.status === 'running' && run.status === 'done') {
-          if (run.kind === 'zigbee') {
-            toast.success(`Zigbee import done — ${run.devices_found} device${run.devices_found !== 1 ? 's' : ''}`)
-          }
-          // Notify pending modal/canvas to refresh
-          useCanvasStore.getState().notifyScanDeviceFound()
-        }
-      }
-      prevRunsRef.current = next
-      setRuns(next)
-    } catch {
-      toast.error('Failed to load scan history')
-    } finally {
-      setLoading(false)
-    }
-  }, [])
-
-  // Initial load
-  useEffect(() => { load() }, [load])
-
-  // Auto-refresh every 3s while any run is still running
-  useEffect(() => {
-    const hasRunning = runs.some((r) => r.status === 'running')
-    if (!hasRunning) return
-    const id = setInterval(load, 3000)
-    return () => clearInterval(id)
-  }, [runs, load])
-
-  const [stopping, setStopping] = useState<string | null>(null)
-
-  const handleStop = async (runId: string) => {
-    setStopping(runId)
-    try {
-      await scanApi.stop(runId)
-      toast.success('Scan stop requested')
-    } catch {
-      toast.error('Failed to stop scan')
-    } finally {
-      setStopping(null)
-    }
-  }
-
-  const statusColor = (s: string) =>
-    s === 'done' ? '#39d353'
-    : s === 'running' ? '#e3b341'
-    : s === 'error' ? '#f85149'
-    : s === 'cancelled' ? '#8b949e'
-    : '#8b949e'
-
-  return (
-    <div className="p-2">
-      <div className="flex items-center justify-between mb-2">
-        <span className="text-xs font-medium text-muted-foreground uppercase tracking-wider">History</span>
-        <button onClick={load} className="text-muted-foreground hover:text-foreground p-0.5">
-          <RefreshCw size={12} />
-        </button>
-      </div>
-      {loading && runs.length === 0 && <Loader2 size={14} className="animate-spin text-muted-foreground mx-auto my-4" />}
-      {!loading && runs.length === 0 && (
-        <p className="text-xs text-muted-foreground text-center py-4">No scans yet</p>
-      )}
-      {runs.map((r) => (
-        <div key={r.id} className="mb-2 p-2 rounded-md bg-[#21262d] text-xs">
-          <div className="flex items-center gap-1.5">
-            <span className="w-1.5 h-1.5 rounded-full shrink-0" style={{ backgroundColor: statusColor(r.status) }} />
-            <span className="font-mono text-foreground capitalize">{r.status}</span>
-            {r.status === 'running' && <Loader2 size={10} className="animate-spin text-[#e3b341]" />}
-            <span
-              className="text-[9px] font-mono px-1 py-0.5 rounded uppercase tracking-wider"
-              style={r.kind === 'zigbee'
-                ? { background: '#00d4ff22', color: '#00d4ff' }
-                : { background: '#a855f722', color: '#a855f7' }}
-            >
-              {r.kind === 'zigbee' ? 'ZIG' : 'IP'}
-            </span>
-            <span className="ml-auto text-muted-foreground font-mono">{r.devices_found} found</span>
-            {r.status === 'running' && (
-              <Tooltip>
-                <TooltipTrigger>
-                  <button
-                    aria-label="Stop scan"
-                    onClick={() => handleStop(r.id)}
-                    disabled={stopping === r.id}
-                    className="p-0.5 text-[#f85149] hover:bg-[#f85149]/10 rounded transition-colors disabled:opacity-50"
-                  >
-                    {stopping === r.id
-                      ? <Loader2 size={11} className="animate-spin" />
-                      : <StopCircle size={11} />
-                    }
-                  </button>
-                </TooltipTrigger>
-                <TooltipContent side="left">Stop scan</TooltipContent>
-              </Tooltip>
-            )}
-          </div>
-          <div className="text-muted-foreground text-[10px] mt-0.5">
-            {new Date(r.started_at.endsWith('Z') ? r.started_at : r.started_at + 'Z').toLocaleString()}
-          </div>
-          {r.ranges.length > 0 && (
-            <div className="text-[#8b949e] text-[10px] font-mono truncate">{r.ranges.join(', ')}</div>
-          )}
-          {r.error && (
-            <div className="text-[#f85149] text-[10px] mt-1 leading-tight wrap-break-word whitespace-pre-wrap">
-              {r.error}
-            </div>
-          )}
-        </div>
-      ))}
-    </div>
-  )
-}
-
 function VersionBadge() {
   const current = __APP_VERSION__
   const { latest, hasUpdate } = useLatestRelease(current)

frontend/src/components/panels/__tests__/DetailPanel.test.tsx

@@ -5,7 +5,10 @@ import * as canvasStore from '@/stores/canvasStore'
 import type { NodeData } from '@/types'
 import type { Node } from '@xyflow/react'
 
-vi.mock('@/stores/canvasStore')
+vi.mock('@/stores/canvasStore', async (importActual) => ({
+  ...(await importActual<typeof canvasStore>()),
+  useCanvasStore: vi.fn(),
+}))
 
 function makeNode(data: Partial<NodeData>): Node<NodeData> {
   return {
@@ -22,8 +25,8 @@ function makeNode(data: Partial<NodeData>): Node<NodeData> {
   }
 }
 
-function setupStore(nodeData: Partial<NodeData> = {}) {
+function setupStore(nodeData: Partial<NodeData> = {}, serviceStatuses: Record<string, string> = {}) {
-  vi.mocked(canvasStore.useCanvasStore).mockReturnValue({
+  const state = {
     nodes: [makeNode(nodeData)],
     selectedNodeId: 'n1',
     selectedNodeIds: [],
@@ -33,7 +36,12 @@ function setupStore(nodeData: Partial<NodeData> = {}) {
     snapshotHistory: vi.fn(),
     createGroup: vi.fn(),
     ungroup: vi.fn(),
-  } as unknown as ReturnType<typeof canvasStore.useCanvasStore>)
+    serviceStatuses,
+  }
+  // Support both the bare destructure call and the selector-based call.
+  vi.mocked(canvasStore.useCanvasStore).mockImplementation(
+    ((sel?: (s: typeof state) => unknown) => (sel ? sel(state) : state)) as unknown as typeof canvasStore.useCanvasStore,
+  )
 }
 
 describe('DetailPanel', () => {
@@ -502,6 +510,43 @@ describe('DetailPanel', () => {
       render(<DetailPanel onEdit={vi.fn()} />)
       expect(screen.getByText('health').tagName).not.toBe('A')
     })
+
+    it('colors a categoryless but reachable web service blue, not grey', () => {
+      setupStore({ ip: '192.168.1.10', services: [{ port: 8080, protocol: 'tcp', service_name: 'nginx', path: '' }] })
+      render(<DetailPanel onEdit={vi.fn()} />)
+      const link = screen.getByRole('link', { name: 'nginx' })
+      expect(link.style.color).toBe('rgb(0, 212, 255)') // #00d4ff (web)
+    })
+
+    it('keeps a categoryless unreachable service grey', () => {
+      setupStore({ ip: undefined, services: [{ protocol: 'tcp', service_name: 'health', path: '' }] })
+      render(<DetailPanel onEdit={vi.fn()} />)
+      expect(screen.getByText('health').style.color).toBe('rgb(139, 148, 158)') // #8b949e
+    })
+
+    it('respects an explicit category over the url fallback', () => {
+      setupStore({ ip: '192.168.1.10', services: [{ port: 5432, protocol: 'tcp', service_name: 'pg', category: 'database', path: '' }] })
+      render(<DetailPanel onEdit={vi.fn()} />)
+      expect(screen.getByText('pg').style.color).toBe('rgb(168, 85, 247)') // #a855f7 (database)
+    })
+
+    it('paints a service red when its live status is offline', () => {
+      setupStore(
+        { ip: '192.168.1.10', services: [{ port: 8080, protocol: 'tcp', service_name: 'nginx', path: '' }] },
+        { 'n1:8080/tcp': 'offline' },
+      )
+      render(<DetailPanel onEdit={vi.fn()} />)
+      expect(screen.getByRole('link', { name: 'nginx' }).style.color).toBe('rgb(248, 81, 73)') // #f85149
+    })
+
+    it('keeps the category colour when the live status is online', () => {
+      setupStore(
+        { ip: '192.168.1.10', services: [{ port: 8080, protocol: 'tcp', service_name: 'nginx', path: '' }] },
+        { 'n1:8080/tcp': 'online' },
+      )
+      render(<DetailPanel onEdit={vi.fn()} />)
+      expect(screen.getByRole('link', { name: 'nginx' }).style.color).toBe('rgb(0, 212, 255)') // #00d4ff (web)
+    })
   })
 
   describe('Last Seen formatting', () => {

frontend/src/components/panels/__tests__/GroupPanels.test.tsx

@@ -42,6 +42,7 @@ const mockStore = {
   snapshotHistory: vi.fn(),
   createGroup: vi.fn(),
   ungroup: vi.fn(),
+  removeFromGroup: vi.fn(),
 }
 
 function setupStore(overrides = {}) {
@@ -230,4 +231,46 @@ describe('GroupDetailPanel', () => {
     fireEvent.click(screen.getByText('Child Node Alpha'))
     expect(setSelectedNode).toHaveBeenCalledWith('c1')
   })
+
+  it('removes a child from the group via the remove button', () => {
+    const removeFromGroup = vi.fn()
+    const snapshotHistory = vi.fn()
+    const group = makeGroupNode()
+    const child = makeNode('c1', { parentId: 'g1', data: { label: 'Router', type: 'router', status: 'online', services: [] } })
+    setupStore({ nodes: [group, child], selectedNodeId: 'g1', selectedNodeIds: ['g1'], removeFromGroup, snapshotHistory })
+    renderPanel()
+    fireEvent.click(screen.getByRole('button', { name: /remove router from group/i }))
+    expect(removeFromGroup).toHaveBeenCalledWith('g1', 'c1')
+    expect(snapshotHistory).toHaveBeenCalled()
+  })
+
+  it('renders the existing group description from notes', () => {
+    const group = makeGroupNode()
+    group.data = { ...group.data, notes: 'Critical DMZ hosts' } as typeof group.data
+    setupStore({ nodes: [group], selectedNodeId: 'g1', selectedNodeIds: ['g1'] })
+    renderPanel()
+    expect((screen.getByLabelText('Description') as HTMLTextAreaElement).value).toBe('Critical DMZ hosts')
+  })
+
+  it('commits the description to the store on each change (so Ctrl+S captures it)', () => {
+    const updateNode = vi.fn()
+    const group = makeGroupNode()
+    setupStore({ nodes: [group], selectedNodeId: 'g1', selectedNodeIds: ['g1'], updateNode })
+    renderPanel()
+    fireEvent.change(screen.getByLabelText('Description'), { target: { value: 'New notes' } })
+    expect(updateNode).toHaveBeenCalledWith('g1', { notes: 'New notes' })
+  })
+
+  it('snapshots history once at the start of an edit, not on every keystroke', () => {
+    const updateNode = vi.fn()
+    const snapshotHistory = vi.fn()
+    const group = makeGroupNode()
+    setupStore({ nodes: [group], selectedNodeId: 'g1', selectedNodeIds: ['g1'], updateNode, snapshotHistory })
+    renderPanel()
+    const textarea = screen.getByLabelText('Description')
+    fireEvent.change(textarea, { target: { value: 'a' } })
+    fireEvent.change(textarea, { target: { value: 'ab' } })
+    fireEvent.change(textarea, { target: { value: 'abc' } })
+    expect(snapshotHistory).toHaveBeenCalledTimes(1)
+  })
 })

frontend/src/components/panels/__tests__/Sidebar.test.tsx

@@ -1,5 +1,5 @@
 import { describe, it, expect, beforeEach, vi } from 'vitest'
-import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import { render, screen, fireEvent } from '@testing-library/react'
 import { Sidebar } from '../Sidebar'
 import { useCanvasStore } from '@/stores/canvasStore'
 import { useAuthStore } from '@/stores/authStore'
@@ -67,10 +67,12 @@ function mockAuth() {
 const defaultProps = {
   onAddNode: vi.fn(),
   onAddGroupRect: vi.fn(),
+  onAddText: vi.fn(),
   onScan: vi.fn(),
   onZigbeeImport: vi.fn(),
   onSave: vi.fn(),
   onOpenSettings: vi.fn(),
+  onOpenHistory: vi.fn(),
   onOpenPending: vi.fn(),
 }
 
@@ -243,19 +245,10 @@ describe('Sidebar', () => {
     expect(defaultProps.onOpenPending).toHaveBeenCalledWith(undefined, 'hidden')
   })
 
-  it('shows History panel when Scan History nav item is clicked', async () => {
+  it('calls onOpenHistory when Scan History nav item is clicked', () => {
     render(<Sidebar {...defaultProps} />)
     fireEvent.click(screen.getByText('Scan History'))
-    await waitFor(() => expect(screen.getByText('No scans yet')).toBeInTheDocument())
+    expect(defaultProps.onOpenHistory).toHaveBeenCalledOnce()
-  })
-
-  // Regression: forceView must not freeze local state across rerenders.
-  it('allows switching views after forceView is set by parent', async () => {
-    const { rerender } = render(<Sidebar {...defaultProps} forceView="history" />)
-    await waitFor(() => expect(screen.getByText('No scans yet')).toBeInTheDocument())
-    rerender(<Sidebar {...defaultProps} forceView="history" />)
-    fireEvent.click(screen.getByText('Canvas'))
-    await waitFor(() => expect(screen.queryByText('No scans yet')).not.toBeInTheDocument())
   })
 
   it('calls onOpenSettings when Settings is clicked', () => {

frontend/src/components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      data-slot="textarea"
+      className={cn(
+        "min-h-16 w-full min-w-0 rounded-lg border border-input bg-transparent px-2.5 py-1.5 text-base transition-colors outline-none placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed disabled:bg-input/50 disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 md:text-sm dark:bg-input/30 dark:disabled:bg-input/80 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Textarea }

frontend/src/hooks/__tests__/useStatusPolling.test.ts

@@ -9,6 +9,7 @@ vi.mock('@/stores/authStore')
 
 const mockUpdateNode = vi.fn()
 const mockNotifyScanDeviceFound = vi.fn()
+const mockSetServiceStatuses = vi.fn()
 
 class MockWebSocket {
   static instances: MockWebSocket[] = []
@@ -33,6 +34,7 @@ describe('useStatusPolling', () => {
     vi.mocked(useCanvasStore).mockReturnValue({
       updateNode: mockUpdateNode,
       notifyScanDeviceFound: mockNotifyScanDeviceFound,
+      setServiceStatuses: mockSetServiceStatuses,
     } as ReturnType<typeof useCanvasStore>)
 
     vi.mocked(useAuthStore).mockReturnValue({
@@ -50,6 +52,7 @@ describe('useStatusPolling', () => {
     vi.restoreAllMocks()
     mockUpdateNode.mockClear()
     mockNotifyScanDeviceFound.mockClear()
+    mockSetServiceStatuses.mockClear()
   })
 
   it('does not open WebSocket when not authenticated', () => {
@@ -147,6 +150,17 @@ describe('useStatusPolling', () => {
     expect(mockUpdateNode).not.toHaveBeenCalled()
   })
 
+  it('routes service_status messages to setServiceStatuses', () => {
+    renderHook(() => useStatusPolling())
+    const ws = MockWebSocket.instances[0]
+    const services = [{ port: 80, protocol: 'tcp', status: 'offline' }]
+    ws.onmessage?.({
+      data: JSON.stringify({ type: 'service_status', node_id: 'node-9', services }),
+    })
+    expect(mockSetServiceStatuses).toHaveBeenCalledWith('node-9', services)
+    expect(mockUpdateNode).not.toHaveBeenCalled()
+  })
+
   it('ignores malformed JSON without throwing', () => {
     renderHook(() => useStatusPolling())
     const ws = MockWebSocket.instances[0]

frontend/src/hooks/useStatusPolling.ts

@@ -1,6 +1,13 @@
 import { useEffect, useRef } from 'react'
 import { useCanvasStore } from '@/stores/canvasStore'
 import { useAuthStore } from '@/stores/authStore'
+import type { ServiceStatus } from '@/types'
+
+interface ServiceStatusEntry {
+  port?: number
+  protocol?: string
+  status: ServiceStatus
+}
 
 interface StatusMessage {
   type?: string
@@ -10,13 +17,14 @@ interface StatusMessage {
   response_time_ms?: number | null
   run_id?: string
   devices_found?: number
+  services?: ServiceStatusEntry[]
 }
 
 const STANDALONE = import.meta.env.VITE_STANDALONE === 'true'
 
 export function useStatusPolling() {
   const wsRef = useRef<WebSocket | null>(null)
-  const { updateNode, notifyScanDeviceFound } = useCanvasStore()
+  const { updateNode, notifyScanDeviceFound, setServiceStatuses } = useCanvasStore()
   const { isAuthenticated, token } = useAuthStore()
 
   useEffect(() => {
@@ -39,6 +47,8 @@ export function useStatusPolling() {
         const msg: StatusMessage = JSON.parse(event.data)
         if (msg.type === 'scan_device_found') {
           notifyScanDeviceFound()
+        } else if (msg.type === 'service_status' && msg.node_id && msg.services) {
+          setServiceStatuses(msg.node_id, msg.services)
         } else if (msg.node_id && msg.status) {
           updateNode(msg.node_id, {
             status: msg.status,
@@ -59,5 +69,5 @@ export function useStatusPolling() {
       ws.close()
       wsRef.current = null
     }
-  }, [isAuthenticated, token, updateNode, notifyScanDeviceFound])
+  }, [isAuthenticated, token, updateNode, notifyScanDeviceFound, setServiceStatuses])
 }

frontend/src/stores/__tests__/canvasStore.test.ts

@@ -31,9 +31,36 @@ describe('canvasStore', () => {
       past: [],
       future: [],
       clipboard: { nodes: [], edges: [] },
+      serviceStatuses: {},
     })
   })
 
+  it('setServiceStatuses stores live status keyed by node/port/protocol', () => {
+    const { setServiceStatuses } = useCanvasStore.getState()
+    setServiceStatuses('node-1', [
+      { port: 80, protocol: 'tcp', status: 'offline' },
+      { port: 443, protocol: 'tcp', status: 'online' },
+    ])
+    const { serviceStatuses } = useCanvasStore.getState()
+    expect(serviceStatuses['node-1:80/tcp']).toBe('offline')
+    expect(serviceStatuses['node-1:443/tcp']).toBe('online')
+  })
+
+  it('setServiceStatuses merges without dropping other nodes', () => {
+    const { setServiceStatuses } = useCanvasStore.getState()
+    setServiceStatuses('node-1', [{ port: 80, protocol: 'tcp', status: 'online' }])
+    setServiceStatuses('node-2', [{ port: 22, protocol: 'tcp', status: 'offline' }])
+    const { serviceStatuses } = useCanvasStore.getState()
+    expect(serviceStatuses['node-1:80/tcp']).toBe('online')
+    expect(serviceStatuses['node-2:22/tcp']).toBe('offline')
+  })
+
+  it('does not mark canvas unsaved on a service status update', () => {
+    useCanvasStore.setState({ hasUnsavedChanges: false })
+    useCanvasStore.getState().setServiceStatuses('n', [{ port: 80, protocol: 'tcp', status: 'offline' }])
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
   it('setEditingTextId sets and clears editing text id', () => {
     const { setEditingTextId } = useCanvasStore.getState()
     setEditingTextId('t1')
@@ -487,6 +514,186 @@ describe('canvasStore', () => {
     expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
   })
 
+  // ── addToGroup ──────────────────────────────────────────────────────────────
+
+  it('addToGroup nests a top-level node with parent-relative position', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 76, y: 52 }, width: 448, height: 252 }
+    const child = { ...makeNode('n1'), position: { x: 300, y: 200 } }
+    useCanvasStore.setState({ nodes: [group, child] })
+
+    useCanvasStore.getState().addToGroup('g1', 'n1')
+
+    const moved = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(moved?.parentId).toBe('g1')
+    expect(moved?.extent).toBe('parent')
+    expect(moved?.data.parent_id).toBe('g1')
+    // 300-76=224, 200-52=148
+    expect(moved?.position).toEqual({ x: 224, y: 148 })
+  })
+
+  it('addToGroup places the group before the child in the array', () => {
+    const child = { ...makeNode('n1'), position: { x: 300, y: 200 } }
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 0, y: 0 } }
+    // child first to prove reordering
+    useCanvasStore.setState({ nodes: [child, group] })
+
+    useCanvasStore.getState().addToGroup('g1', 'n1')
+
+    const { nodes } = useCanvasStore.getState()
+    expect(nodes.findIndex((n) => n.id === 'g1')).toBeLessThan(nodes.findIndex((n) => n.id === 'n1'))
+  })
+
+  it('addToGroup is a no-op when target is not a group', () => {
+    const notGroup = { ...makeNode('s1'), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [notGroup, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToGroup('s1', 'n1')
+
+    expect(useCanvasStore.getState().nodes.find((n) => n.id === 'n1')?.parentId).toBeUndefined()
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
+  it('addToGroup is a no-op when child already belongs to the group', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 }, parentId: 'g1', extent: 'parent' as const }
+    useCanvasStore.setState({ nodes: [group, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToGroup('g1', 'n1')
+
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
+  it('addToGroup snapshots history and marks unsaved', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [group, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToGroup('g1', 'n1')
+
+    expect(useCanvasStore.getState().past).toHaveLength(1)
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
+  })
+
+  // ── addToContainer ──────────────────────────────────────────────────────────
+
+  it('addToContainer nests a top-level node under a container_mode node', () => {
+    const container = { ...makeNode('px1', { type: 'proxmox', container_mode: true, label: 'PX' }), position: { x: 76, y: 52 }, width: 448, height: 252 }
+    const child = { ...makeNode('n1'), position: { x: 300, y: 200 } }
+    useCanvasStore.setState({ nodes: [container, child] })
+
+    useCanvasStore.getState().addToContainer('px1', 'n1')
+
+    const moved = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(moved?.parentId).toBe('px1')
+    expect(moved?.extent).toBe('parent')
+    expect(moved?.data.parent_id).toBe('px1')
+    // 300-76=224, 200-52=148
+    expect(moved?.position).toEqual({ x: 224, y: 148 })
+  })
+
+  it('addToContainer works for any container_mode type (docker_host)', () => {
+    const host = { ...makeNode('dh1', { type: 'docker_host', container_mode: true }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [host, child] })
+
+    useCanvasStore.getState().addToContainer('dh1', 'n1')
+
+    expect(useCanvasStore.getState().nodes.find((n) => n.id === 'n1')?.parentId).toBe('dh1')
+  })
+
+  it('addToContainer places the container before the child in the array', () => {
+    const child = { ...makeNode('n1'), position: { x: 300, y: 200 } }
+    const container = { ...makeNode('px1', { type: 'proxmox', container_mode: true }), position: { x: 0, y: 0 } }
+    useCanvasStore.setState({ nodes: [child, container] })
+
+    useCanvasStore.getState().addToContainer('px1', 'n1')
+
+    const { nodes } = useCanvasStore.getState()
+    expect(nodes.findIndex((n) => n.id === 'px1')).toBeLessThan(nodes.findIndex((n) => n.id === 'n1'))
+  })
+
+  it('addToContainer is a no-op when target is not in container_mode', () => {
+    const notContainer = { ...makeNode('px1', { type: 'proxmox', container_mode: false }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [notContainer, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToContainer('px1', 'n1')
+
+    expect(useCanvasStore.getState().nodes.find((n) => n.id === 'n1')?.parentId).toBeUndefined()
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
+  it('addToContainer is a no-op when child already belongs to the container', () => {
+    const container = { ...makeNode('px1', { type: 'proxmox', container_mode: true }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 }, parentId: 'px1', extent: 'parent' as const }
+    useCanvasStore.setState({ nodes: [container, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToContainer('px1', 'n1')
+
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
+  it('addToContainer snapshots history and marks unsaved', () => {
+    const container = { ...makeNode('px1', { type: 'proxmox', container_mode: true }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [container, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().addToContainer('px1', 'n1')
+
+    expect(useCanvasStore.getState().past).toHaveLength(1)
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
+  })
+
+  // ── removeFromGroup ─────────────────────────────────────────────────────────
+
+  it('removeFromGroup releases the child to absolute coords and keeps the group', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 76, y: 52 } }
+    const child = { ...makeNode('n1'), position: { x: 224, y: 148 }, parentId: 'g1', extent: 'parent' as const }
+    useCanvasStore.setState({ nodes: [group, child] })
+
+    useCanvasStore.getState().removeFromGroup('g1', 'n1')
+
+    const { nodes } = useCanvasStore.getState()
+    const released = nodes.find((n) => n.id === 'n1')
+    expect(released?.parentId).toBeUndefined()
+    expect(released?.extent).toBeUndefined()
+    expect(released?.data.parent_id).toBeUndefined()
+    // 224+76=300, 148+52=200
+    expect(released?.position).toEqual({ x: 300, y: 200 })
+    // group survives
+    expect(nodes.find((n) => n.id === 'g1')).toBeDefined()
+  })
+
+  it('removeFromGroup is a no-op when child is not in the group', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 } }
+    useCanvasStore.setState({ nodes: [group, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().removeFromGroup('g1', 'n1')
+
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+
+  it('removeFromGroup snapshots history and marks unsaved', () => {
+    const group = { ...makeNode('g1', { type: 'group', label: 'G' }), position: { x: 0, y: 0 } }
+    const child = { ...makeNode('n1'), position: { x: 50, y: 50 }, parentId: 'g1', extent: 'parent' as const }
+    useCanvasStore.setState({ nodes: [group, child] })
+    useCanvasStore.getState().markSaved()
+
+    useCanvasStore.getState().removeFromGroup('g1', 'n1')
+
+    expect(useCanvasStore.getState().past).toHaveLength(1)
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
+  })
+
   it('updateEdge updates edge data and marks unsaved', () => {
     useCanvasStore.setState((s) => ({ edges: [...s.edges, makeEdge('e1', 'n1', 'n2')] }))
     useCanvasStore.getState().markSaved()

frontend/src/stores/canvasStore.ts

@@ -9,7 +9,7 @@ import {
   applyEdgeChanges,
   addEdge,
 } from '@xyflow/react'
-import type { NodeData, EdgeData, NodeType, EdgeType, NodeTypeStyle, EdgeTypeStyle, CustomStyleDef } from '@/types'
+import type { NodeData, EdgeData, NodeType, EdgeType, NodeTypeStyle, EdgeTypeStyle, CustomStyleDef, ServiceStatus } from '@/types'
 import { generateUUID } from '@/utils/uuid'
 import { normalizeHandle, removedBottomHandleIds } from '@/utils/handleUtils'
 import { applyOpacity } from '@/utils/colorUtils'
@@ -21,6 +21,10 @@ type Clipboard = { nodes: Node<NodeData>[]; edges: Edge<EdgeData>[] }
 /** Resolve a node's effective parent id from either the RF field or domain data. */
 const parentIdOf = (n: Node<NodeData>): string | undefined => n.parentId ?? n.data.parent_id ?? undefined
 
+/** Key for the live per-service status overlay. */
+export const serviceStatusKey = (nodeId: string, port?: number, protocol?: string): string =>
+  `${nodeId}:${port ?? ''}/${protocol ?? ''}`
+
 interface CanvasState {
   nodes: Node<NodeData>[]
   edges: Edge<EdgeData>[]
@@ -28,6 +32,8 @@ interface CanvasState {
   selectedNodeId: string | null
   selectedNodeIds: string[]
   scanEventTs: number
+  // Live per-service status overlay (not persisted), keyed via serviceStatusKey.
+  serviceStatuses: Record<string, ServiceStatus>
 
   // History
   past: HistoryEntry[]
@@ -62,12 +68,16 @@ interface CanvasState {
   toggleNodeCollapsed: (id: string) => void
   createGroup: (nodeIds: string[], name: string) => void
   ungroup: (groupId: string) => void
+  addToGroup: (groupId: string, childId: string) => void
+  addToContainer: (containerId: string, childId: string) => void
+  removeFromGroup: (groupId: string, childId: string) => void
   markSaved: () => void
   markUnsaved: () => void
   loadCanvas: (nodes: Node<NodeData>[], edges: Edge<EdgeData>[]) => void
   fitViewPending: boolean
   clearFitViewPending: () => void
   notifyScanDeviceFound: () => void
+  setServiceStatuses: (nodeId: string, statuses: { port?: number; protocol?: string; status: ServiceStatus }[]) => void
   hideIp: boolean
   toggleHideIp: () => void
   setHideIp: (value: boolean) => void
@@ -86,6 +96,7 @@ export const useCanvasStore = create<CanvasState>((set) => ({
   editingTextId: null,
   hideIp: readHideIp(),
   scanEventTs: 0,
+  serviceStatuses: {},
   fitViewPending: false,
 
   past: [],
@@ -575,12 +586,137 @@ export const useCanvasStore = create<CanvasState>((set) => ({
       }
     }),
 
+  // Nest an existing top-level node inside a group. Inverse of removeFromGroup.
+  addToGroup: (groupId, childId) =>
+    set((state) => {
+      const group = state.nodes.find((n) => n.id === groupId)
+      const child = state.nodes.find((n) => n.id === childId)
+      if (!group || !child || group.data.type !== 'group') return state
+      if (child.id === groupId || child.parentId === groupId) return state
+
+      const updatedNodes = state.nodes.map((n) => {
+        if (n.id !== childId) return n
+        return {
+          ...n,
+          parentId: groupId,
+          extent: 'parent' as const,
+          // Absolute → group-relative. Clamp so the node stays inside the box.
+          position: {
+            x: Math.max(8, n.position.x - group.position.x),
+            y: Math.max(8, n.position.y - group.position.y),
+          },
+          selected: false,
+          data: { ...n.data, parent_id: groupId },
+        }
+      })
+
+      // React Flow requires the parent to precede its children in the array.
+      const others = updatedNodes.filter((n) => n.id !== childId)
+      const movedChild = updatedNodes.find((n) => n.id === childId)!
+      const groupIdx = others.findIndex((n) => n.id === groupId)
+      const nodes = [
+        ...others.slice(0, groupIdx + 1),
+        movedChild,
+        ...others.slice(groupIdx + 1),
+      ]
+
+      return {
+        nodes,
+        hasUnsavedChanges: true,
+        past: [...state.past.slice(-49), { nodes: state.nodes, edges: state.edges }],
+        future: [],
+      }
+    }),
+
+  // Nest an existing top-level node inside a container node (proxmox /
+  // docker_host / … in container_mode). Mirrors addToGroup but the target is
+  // any node with data.container_mode === true rather than a group.
+  addToContainer: (containerId, childId) =>
+    set((state) => {
+      const container = state.nodes.find((n) => n.id === containerId)
+      const child = state.nodes.find((n) => n.id === childId)
+      if (!container || !child || container.data.container_mode !== true) return state
+      if (child.id === containerId || child.parentId === containerId) return state
+
+      const updatedNodes = state.nodes.map((n) => {
+        if (n.id !== childId) return n
+        return {
+          ...n,
+          parentId: containerId,
+          extent: 'parent' as const,
+          // Absolute → container-relative. Clamp so the node stays inside.
+          position: {
+            x: Math.max(8, n.position.x - container.position.x),
+            y: Math.max(8, n.position.y - container.position.y),
+          },
+          selected: false,
+          data: { ...n.data, parent_id: containerId },
+        }
+      })
+
+      // React Flow requires the parent to precede its children in the array.
+      const others = updatedNodes.filter((n) => n.id !== childId)
+      const movedChild = updatedNodes.find((n) => n.id === childId)!
+      const containerIdx = others.findIndex((n) => n.id === containerId)
+      const nodes = [
+        ...others.slice(0, containerIdx + 1),
+        movedChild,
+        ...others.slice(containerIdx + 1),
+      ]
+
+      return {
+        nodes,
+        hasUnsavedChanges: true,
+        past: [...state.past.slice(-49), { nodes: state.nodes, edges: state.edges }],
+        future: [],
+      }
+    }),
+
+  // Release a single child from a group back to the canvas. Group stays.
+  removeFromGroup: (groupId, childId) =>
+    set((state) => {
+      const group = state.nodes.find((n) => n.id === groupId)
+      const child = state.nodes.find((n) => n.id === childId)
+      if (!group || !child || child.parentId !== groupId) return state
+
+      const nodes = state.nodes.map((n) => {
+        if (n.id !== childId) return n
+        return {
+          ...n,
+          parentId: undefined,
+          extent: undefined,
+          position: {
+            x: n.position.x + group.position.x,
+            y: n.position.y + group.position.y,
+          },
+          data: { ...n.data, parent_id: undefined },
+        }
+      })
+
+      return {
+        nodes,
+        hasUnsavedChanges: true,
+        past: [...state.past.slice(-49), { nodes: state.nodes, edges: state.edges }],
+        future: [],
+      }
+    }),
+
   markSaved: () => set({ hasUnsavedChanges: false }),
 
   markUnsaved: () => set({ hasUnsavedChanges: true }),
 
   notifyScanDeviceFound: () => set({ scanEventTs: Date.now() }),
 
+  setServiceStatuses: (nodeId, statuses) =>
+    set((state) => {
+      // Live overlay only — never touches node data, so it stays out of saves.
+      const next = { ...state.serviceStatuses }
+      for (const s of statuses) {
+        next[serviceStatusKey(nodeId, s.port, s.protocol)] = s.status
+      }
+      return { serviceStatuses: next }
+    }),
+
   toggleHideIp: () => set((s) => {
     const hideIp = !s.hideIp
     writeHideIp(hideIp)

frontend/src/types/index.ts

@@ -78,6 +78,8 @@ export interface ServiceInfo {
   category?: string
 }
 
+export type ServiceStatus = 'online' | 'offline' | 'unknown'
+
 export interface NodeProperty {
   key: string
   value: string

frontend/src/utils/__tests__/exportMarkdown.test.ts

@@ -53,6 +53,33 @@ describe('generateMarkdownTable', () => {
     expect(md).toContain('A\\|B')
   })
 
+  it('escapes backslashes before pipes so the escape char is not ambiguous', () => {
+    const nodes = [makeNode({ label: 'A\\|B' })]
+    const md = generateMarkdownTable(nodes)
+    // backslash doubled, then the literal pipe escaped
+    expect(md).toContain('A\\\\\\|B')
+  })
+
+  it('collapses newlines in cell values so they do not break the table', () => {
+    const nodes = [makeNode({ label: 'line1\nline2', hostname: 'a\r\nb' })]
+    const lines = generateMarkdownTable(nodes).split('\n')
+    // header + separator + exactly one data row (no extra line from the value)
+    expect(lines).toHaveLength(3)
+    expect(lines[2]).toContain('line1 line2')
+    expect(lines[2]).toContain('a b')
+  })
+
+  it('escapes pipe characters inside service names', () => {
+    const nodes = [makeNode({
+      label: 'Server',
+      services: [{ port: 80, protocol: 'tcp', service_name: 'web|proxy' }],
+    })]
+    const lines = generateMarkdownTable(nodes).split('\n')
+    // header + separator + exactly one data row — the pipe must not add a column
+    expect(lines).toHaveLength(3)
+    expect(lines[2]).toContain('web\\|proxy')
+  })
+
   it('generates one row per non-groupRect node', () => {
     const nodes = [
       makeNode({ type: 'server', label: 'A' }, '1'),

frontend/src/utils/exportMarkdown.ts

@@ -5,8 +5,11 @@ const EMPTY = '—'
 
 function cell(v: string | null | undefined): string {
   if (!v) return EMPTY
-  // Escape pipe chars so they don't break the table
+  // Escape backslashes first, then pipes, and collapse newlines so they don't break the table
-  return v.replace(/\|/g, '\\|')
+  return v
+    .replace(/\\/g, '\\\\')
+    .replace(/\|/g, '\\|')
+    .replace(/\r?\n/g, ' ')
 }
 
 export function generateMarkdownTable(nodes: Node<NodeData>[]): string {
@@ -27,7 +30,7 @@ export function generateMarkdownTable(nodes: Node<NodeData>[]): string {
         cell(d.ip),
         cell(d.hostname),
         cell(d.status),
-        services,
+        cell(services),
       ]
     })