fix: force frontend builder stage to native platform, fixes QEMU arm64 npm crash

Tier 1 — quality.yml: ShellCheck on lxc-install.sh, hadolint on both Dockerfiles
Tier 2 — docker-ci.yml: build images, smoke-test backend health + frontend 200
Tier 3 — test_integration.py: full stack pytest (auth, canvas save/reload, dimensions)
Also adds Docker healthcheck to backend service in docker-compose.yml

.github/workflows/docker-ci.yml

@@ -0,0 +1,83 @@
+name: Docker CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  smoke-and-integration:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      # ── Write a minimal .env required by env_file: .env in docker-compose.yml ─
+      # AUTH_PASSWORD_HASH is NOT set here — it's injected via docker-compose.ci.yml
+      # environment section using $$ escaping to avoid docker-compose $VAR expansion.
+      - name: Write .env
+        run: |
+          {
+            echo "SECRET_KEY=ci-only-secret-key-not-for-production"
+            echo "SQLITE_PATH=/app/data/homelab.db"
+            echo 'CORS_ORIGINS=["http://localhost:3000"]'
+            echo 'SCANNER_RANGES=["127.0.0.1/32"]'
+            echo "STATUS_CHECKER_INTERVAL=300"
+            echo "MCP_API_KEY=ci-mcp-key"
+            echo "MCP_SERVICE_KEY=ci-svc-key"
+          } > .env
+
+      # ── Build + start backend and frontend (skip mcp) ─────────────────────────
+      # docker-compose.ci.yml: exposes port 8000 + injects AUTH_* env vars
+      - name: Build images
+        run: docker compose -f docker-compose.yml -f docker-compose.ci.yml build backend frontend
+
+      - name: Start stack
+        run: docker compose -f docker-compose.yml -f docker-compose.ci.yml up -d backend frontend
+
+      # ── Wait for backend to be healthy (max 60 s) ─────────────────────────────
+      - name: Wait for backend health
+        run: |
+          echo "Waiting for backend..."
+          for i in $(seq 1 30); do
+            if curl -sf http://localhost:8000/api/v1/health > /dev/null 2>&1; then
+              echo "Backend is up after ${i}s"
+              exit 0
+            fi
+            sleep 2
+          done
+          echo "Backend did not become healthy in time" >&2
+          docker compose -f docker-compose.yml -f docker-compose.ci.yml logs backend
+          exit 1
+
+      # ── Smoke: frontend serves HTML ───────────────────────────────────────────
+      - name: Smoke — frontend returns 200
+        run: |
+          STATUS=$(curl -so /dev/null -w "%{http_code}" http://localhost:3000/)
+          [ "$STATUS" = "200" ] || { echo "Frontend returned $STATUS"; exit 1; }
+
+      # ── Tier 3: integration tests against the live stack ──────────────────────
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install backend test deps
+        run: pip install --quiet -r backend/requirements.txt
+
+      - name: Run integration tests
+        env:
+          INTEGRATION_BASE_URL: http://localhost:8000
+          INTEGRATION_USERNAME: admin
+          INTEGRATION_PASSWORD: admin
+        run: |
+          cd backend
+          pytest tests/test_integration.py -v
+
+      # ── Teardown ──────────────────────────────────────────────────────────────
+      - name: Dump logs on failure
+        if: failure()
+        run: docker compose -f docker-compose.yml -f docker-compose.ci.yml logs
+
+      - name: Stop stack
+        if: always()
+        run: docker compose -f docker-compose.yml -f docker-compose.ci.yml down -v

.github/workflows/quality.yml

@@ -7,6 +7,25 @@ on:
     branches: [main]
 
 jobs:
+  lint-scripts:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: ShellCheck — lxc-install.sh
+        uses: ludeeus/action-shellcheck@2.0.0
+        with:
+          scandir: './scripts'
+      - name: Hadolint — Dockerfile.backend
+        uses: hadolint/hadolint-action@v3.1.0
+        with:
+          dockerfile: Dockerfile.backend
+          ignore: DL3008
+      - name: Hadolint — Dockerfile.frontend
+        uses: hadolint/hadolint-action@v3.1.0
+        with:
+          dockerfile: Dockerfile.frontend
+          ignore: DL3008
+
   frontend:
     runs-on: ubuntu-latest
     defaults:

.hadolint.yaml

@@ -0,0 +1,4 @@
+# DL3008: pinning apt package versions is impractical for system tools (nmap, iputils-ping)
+# that have version numbers tied to specific Debian releases.
+ignore:
+  - DL3008

Dockerfile.frontend

@@ -1,5 +1,7 @@
 # Stage 1: build
-FROM node:20-alpine AS builder
+# Use the native build platform so npm ci never runs under QEMU emulation.
+# The build output (static HTML/JS/CSS) is platform-independent.
+FROM --platform=$BUILDPLATFORM node:20-alpine AS builder
 
 ARG VITE_STANDALONE=false
 ENV VITE_STANDALONE=$VITE_STANDALONE

backend/app/data/service_signatures.json

@@ -0,0 +1,146 @@
+[
+  {"port": 8006,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Proxmox VE",              "icon": "layers",      "category": "hypervisor",    "suggested_node_type": "proxmox"},
+
+  {"port": 5000,  "protocol": "tcp", "banner_regex": "synology|DSM",                    "service_name": "Synology DSM",            "icon": "hard-drive",  "category": "nas",           "suggested_node_type": "nas"},
+  {"port": 5001,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Synology DSM HTTPS",      "icon": "hard-drive",  "category": "nas",           "suggested_node_type": "nas"},
+  {"port": 5006,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Synology DSM Mobile",     "icon": "hard-drive",  "category": "nas",           "suggested_node_type": "nas"},
+  {"port": 8080,  "protocol": "tcp", "banner_regex": "QNAP|qnap|QTS",                  "service_name": "QNAP NAS",                "icon": "hard-drive",  "category": "nas",           "suggested_node_type": "nas"},
+  {"port": 5005,  "protocol": "tcp", "banner_regex": null,                              "service_name": "TrueNAS",                 "icon": "hard-drive",  "category": "nas",           "suggested_node_type": "nas"},
+  {"port": 445,   "protocol": "tcp", "banner_regex": null,                              "service_name": "SMB / CIFS",              "icon": "share-2",     "category": "storage",       "suggested_node_type": "nas"},
+  {"port": 2049,  "protocol": "tcp", "banner_regex": null,                              "service_name": "NFS",                     "icon": "share-2",     "category": "storage",       "suggested_node_type": "nas"},
+  {"port": 548,   "protocol": "tcp", "banner_regex": null,                              "service_name": "AFP (Apple Filing)",      "icon": "share-2",     "category": "storage",       "suggested_node_type": "nas"},
+  {"port": 873,   "protocol": "tcp", "banner_regex": null,                              "service_name": "rsync",                   "icon": "refresh-cw",  "category": "storage",       "suggested_node_type": "nas"},
+
+  {"port": 32400, "protocol": "tcp", "banner_regex": null,                              "service_name": "Plex Media Server",       "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 32469, "protocol": "tcp", "banner_regex": null,                              "service_name": "Plex DLNA",               "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 8096,  "protocol": "tcp", "banner_regex": "Jellyfin",                        "service_name": "Jellyfin",                "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 8096,  "protocol": "tcp", "banner_regex": "Emby",                            "service_name": "Emby",                    "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 8096,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Jellyfin / Emby",         "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 8920,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Jellyfin HTTPS",          "icon": "play-circle", "category": "media",         "suggested_node_type": "server"},
+  {"port": 8181,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Tautulli",                "icon": "bar-chart",   "category": "media",         "suggested_node_type": "server"},
+  {"port": 8013,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Komga",                   "icon": "book-open",   "category": "media",         "suggested_node_type": "server"},
+  {"port": 1935,  "protocol": "tcp", "banner_regex": null,                              "service_name": "RTMP (Stream)",           "icon": "video",       "category": "media",         "suggested_node_type": "server"},
+
+  {"port": 8989,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Sonarr",                  "icon": "tv",          "category": "media",         "suggested_node_type": "server"},
+  {"port": 7878,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Radarr",                  "icon": "film",        "category": "media",         "suggested_node_type": "server"},
+  {"port": 8686,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Lidarr",                  "icon": "music",       "category": "media",         "suggested_node_type": "server"},
+  {"port": 9696,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Prowlarr",                "icon": "search",      "category": "media",         "suggested_node_type": "server"},
+  {"port": 8787,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Readarr",                 "icon": "book",        "category": "media",         "suggested_node_type": "server"},
+  {"port": 6767,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Bazarr",                  "icon": "subtitles",   "category": "media",         "suggested_node_type": "server"},
+  {"port": 5055,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Overseerr / Jellyseerr",  "icon": "search",      "category": "media",         "suggested_node_type": "server"},
+  {"port": 9117,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Jackett",                 "icon": "search",      "category": "media",         "suggested_node_type": "server"},
+  {"port": 6969,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Whisparr",                "icon": "film",        "category": "media",         "suggested_node_type": "server"},
+  {"port": 5454,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Notifiarr",               "icon": "bell",        "category": "media",         "suggested_node_type": "server"},
+  {"port": 8191,  "protocol": "tcp", "banner_regex": null,                              "service_name": "FlareSolverr",            "icon": "shield",      "category": "network",       "suggested_node_type": "server"},
+
+  {"port": 9091,  "protocol": "tcp", "banner_regex": "Transmission",                   "service_name": "Transmission",            "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 8112,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Deluge",                  "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 6789,  "protocol": "tcp", "banner_regex": null,                              "service_name": "NZBGet",                  "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 6800,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Aria2 RPC",               "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 51413, "protocol": "tcp", "banner_regex": null,                              "service_name": "Transmission BitTorrent", "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 6881,  "protocol": "tcp", "banner_regex": null,                              "service_name": "BitTorrent Peer",         "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+
+  {"port": 8123,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Home Assistant",          "icon": "home",        "category": "automation",    "suggested_node_type": "iot"},
+  {"port": 1883,  "protocol": "tcp", "banner_regex": null,                              "service_name": "MQTT Broker",             "icon": "radio",       "category": "iot",           "suggested_node_type": "iot"},
+  {"port": 8883,  "protocol": "tcp", "banner_regex": null,                              "service_name": "MQTT Broker TLS",         "icon": "radio",       "category": "iot",           "suggested_node_type": "iot"},
+  {"port": 6052,  "protocol": "tcp", "banner_regex": null,                              "service_name": "ESPHome",                 "icon": "cpu",         "category": "iot",           "suggested_node_type": "iot"},
+  {"port": 1880,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Node-RED",                "icon": "git-branch",  "category": "automation",    "suggested_node_type": "iot"},
+  {"port": 8971,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Frigate NVR",             "icon": "camera",      "category": "nvr",           "suggested_node_type": "camera"},
+  {"port": 10443, "protocol": "tcp", "banner_regex": null,                              "service_name": "Scrypted",                "icon": "camera",      "category": "nvr",           "suggested_node_type": "camera"},
+  {"port": 5000,  "protocol": "tcp", "banner_regex": "frigate",                         "service_name": "Frigate NVR",             "icon": "camera",      "category": "nvr",           "suggested_node_type": "camera"},
+  {"port": 8081,  "protocol": "tcp", "banner_regex": "iobroker|ioBroker",               "service_name": "ioBroker",                "icon": "cpu",         "category": "automation",    "suggested_node_type": "iot"},
+  {"port": 8080,  "protocol": "tcp", "banner_regex": "Domoticz|domoticz",               "service_name": "Domoticz",                "icon": "home",        "category": "automation",    "suggested_node_type": "iot"},
+  {"port": 5683,  "protocol": "udp", "banner_regex": null,                              "service_name": "CoAP (IoT)",              "icon": "radio",       "category": "iot",           "suggested_node_type": "iot"},
+
+  {"port": 554,   "protocol": "tcp", "banner_regex": null,                              "service_name": "RTSP (Camera)",           "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 8554,  "protocol": "tcp", "banner_regex": null,                              "service_name": "RTSP Alt (Camera)",       "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 37777, "protocol": "tcp", "banner_regex": null,                              "service_name": "Dahua Camera SDK",        "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 34567, "protocol": "tcp", "banner_regex": null,                              "service_name": "Amcrest / Dahua Camera",  "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 8000,  "protocol": "tcp", "banner_regex": "[Hh]ikvision|[Dd]ahua",          "service_name": "IP Camera SDK",           "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 2020,  "protocol": "tcp", "banner_regex": null,                              "service_name": "TP-Link Tapo Camera",     "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+  {"port": 9000,  "protocol": "tcp", "banner_regex": "[Rr]eolink",                      "service_name": "Reolink Camera",          "icon": "camera",      "category": "camera",        "suggested_node_type": "camera"},
+
+  {"port": 8291,  "protocol": "tcp", "banner_regex": null,                              "service_name": "MikroTik Winbox",         "icon": "router",      "category": "network",       "suggested_node_type": "router"},
+  {"port": 8880,  "protocol": "tcp", "banner_regex": null,                              "service_name": "UniFi HTTP Portal",       "icon": "wifi",        "category": "network",       "suggested_node_type": "ap"},
+  {"port": 8443,  "protocol": "tcp", "banner_regex": "[Uu]ni[Ff]i",                     "service_name": "UniFi Controller",        "icon": "wifi",        "category": "network",       "suggested_node_type": "ap"},
+  {"port": 4711,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Pi-hole API",             "icon": "shield",      "category": "network",       "suggested_node_type": "router"},
+  {"port": 3000,  "protocol": "tcp", "banner_regex": "[Aa]d[Gg]uard",                   "service_name": "AdGuard Home",            "icon": "shield",      "category": "network",       "suggested_node_type": "router"},
+  {"port": 81,    "protocol": "tcp", "banner_regex": null,                              "service_name": "Nginx Proxy Manager",     "icon": "arrow-right", "category": "network",       "suggested_node_type": "router"},
+  {"port": 23,    "protocol": "tcp", "banner_regex": null,                              "service_name": "Telnet",                  "icon": "terminal",    "category": "network",       "suggested_node_type": "switch"},
+  {"port": 161,   "protocol": "udp", "banner_regex": null,                              "service_name": "SNMP",                    "icon": "activity",    "category": "network",       "suggested_node_type": "switch"},
+
+  {"port": 8200,  "protocol": "tcp", "banner_regex": null,                              "service_name": "HashiCorp Vault",         "icon": "lock",        "category": "security",      "suggested_node_type": "server"},
+  {"port": 389,   "protocol": "tcp", "banner_regex": null,                              "service_name": "LDAP",                    "icon": "users",       "category": "auth",          "suggested_node_type": "server"},
+  {"port": 636,   "protocol": "tcp", "banner_regex": null,                              "service_name": "LDAPS",                   "icon": "users",       "category": "auth",          "suggested_node_type": "server"},
+  {"port": 9091,  "protocol": "tcp", "banner_regex": "[Aa]uthelia",                     "service_name": "Authelia",                "icon": "shield",      "category": "security",      "suggested_node_type": "server"},
+  {"port": 9000,  "protocol": "tcp", "banner_regex": "[Aa]uthentik",                    "service_name": "Authentik",               "icon": "shield",      "category": "security",      "suggested_node_type": "server"},
+  {"port": 8080,  "protocol": "tcp", "banner_regex": "[Kk]eycloak",                     "service_name": "Keycloak",                "icon": "shield",      "category": "auth",          "suggested_node_type": "server"},
+
+  {"port": 3000,  "protocol": "tcp", "banner_regex": "[Gg]rafana",                      "service_name": "Grafana",                 "icon": "bar-chart-2", "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 9090,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Prometheus",              "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 9093,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Alertmanager",            "icon": "bell",        "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 9100,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Node Exporter",           "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 8086,  "protocol": "tcp", "banner_regex": null,                              "service_name": "InfluxDB",                "icon": "database",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 3100,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Grafana Loki",            "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 8428,  "protocol": "tcp", "banner_regex": null,                              "service_name": "VictoriaMetrics",         "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 19999, "protocol": "tcp", "banner_regex": null,                              "service_name": "Netdata",                 "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 3001,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Uptime Kuma",             "icon": "heart",       "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 8581,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Uptime Kuma",             "icon": "heart",       "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 10051, "protocol": "tcp", "banner_regex": null,                              "service_name": "Zabbix Server",           "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 9411,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Zipkin",                  "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 16686, "protocol": "tcp", "banner_regex": null,                              "service_name": "Jaeger UI",               "icon": "activity",    "category": "monitoring",    "suggested_node_type": "server"},
+  {"port": 5601,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Kibana",                  "icon": "bar-chart-2", "category": "monitoring",    "suggested_node_type": "server"},
+
+  {"port": 9443,  "protocol": "tcp", "banner_regex": "[Pp]ortainer",                   "service_name": "Portainer HTTPS",         "icon": "box",         "category": "containers",    "suggested_node_type": "lxc"},
+  {"port": 9000,  "protocol": "tcp", "banner_regex": "[Pp]ortainer",                   "service_name": "Portainer",               "icon": "box",         "category": "containers",    "suggested_node_type": "lxc"},
+  {"port": 2375,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Docker API",              "icon": "box",         "category": "containers",    "suggested_node_type": "server"},
+  {"port": 2376,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Docker API TLS",          "icon": "box",         "category": "containers",    "suggested_node_type": "server"},
+  {"port": 6443,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Kubernetes API",          "icon": "layers",      "category": "containers",    "suggested_node_type": "server"},
+
+  {"port": 3306,  "protocol": "tcp", "banner_regex": null,                              "service_name": "MySQL / MariaDB",         "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 5432,  "protocol": "tcp", "banner_regex": null,                              "service_name": "PostgreSQL",              "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 6379,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Redis",                   "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 27017, "protocol": "tcp", "banner_regex": null,                              "service_name": "MongoDB",                 "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 9200,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Elasticsearch",           "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 9300,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Elasticsearch Transport", "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 5984,  "protocol": "tcp", "banner_regex": null,                              "service_name": "CouchDB",                 "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 1521,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Oracle DB",               "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+  {"port": 6432,  "protocol": "tcp", "banner_regex": null,                              "service_name": "PgBouncer",               "icon": "database",    "category": "database",      "suggested_node_type": "server"},
+
+  {"port": 22,    "protocol": "tcp", "banner_regex": null,                              "service_name": "SSH",                     "icon": "terminal",    "category": "remote",        "suggested_node_type": "server"},
+  {"port": 21,    "protocol": "tcp", "banner_regex": null,                              "service_name": "FTP",                     "icon": "upload",      "category": "storage",       "suggested_node_type": "server"},
+  {"port": 25,    "protocol": "tcp", "banner_regex": null,                              "service_name": "SMTP",                    "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 110,   "protocol": "tcp", "banner_regex": null,                              "service_name": "POP3",                    "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 143,   "protocol": "tcp", "banner_regex": null,                              "service_name": "IMAP",                    "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 465,   "protocol": "tcp", "banner_regex": null,                              "service_name": "SMTPS",                   "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 587,   "protocol": "tcp", "banner_regex": null,                              "service_name": "SMTP Submission",         "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 993,   "protocol": "tcp", "banner_regex": null,                              "service_name": "IMAPS",                   "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 995,   "protocol": "tcp", "banner_regex": null,                              "service_name": "POP3S",                   "icon": "mail",        "category": "mail",          "suggested_node_type": "server"},
+  {"port": 3389,  "protocol": "tcp", "banner_regex": null,                              "service_name": "RDP",                     "icon": "monitor",     "category": "remote",        "suggested_node_type": "server"},
+  {"port": 5900,  "protocol": "tcp", "banner_regex": null,                              "service_name": "VNC",                     "icon": "monitor",     "category": "remote",        "suggested_node_type": "server"},
+  {"port": 5800,  "protocol": "tcp", "banner_regex": null,                              "service_name": "VNC (HTTP)",              "icon": "monitor",     "category": "remote",        "suggested_node_type": "server"},
+
+  {"port": 8888,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Jupyter Notebook",        "icon": "code",        "category": "dev",           "suggested_node_type": "server"},
+  {"port": 3000,  "protocol": "tcp", "banner_regex": "[Gg]itea",                        "service_name": "Gitea",                   "icon": "git-branch",  "category": "dev",           "suggested_node_type": "server"},
+
+  {"port": 80,    "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTP",                    "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+  {"port": 443,   "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTPS",                   "icon": "lock",        "category": "web",           "suggested_node_type": "server"},
+  {"port": 8080,  "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTP Alt",                "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+  {"port": 8443,  "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTPS Alt",               "icon": "lock",        "category": "web",           "suggested_node_type": "server"},
+  {"port": 8008,  "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTP Alt",                "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+  {"port": 3000,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Web service",             "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+  {"port": 9091,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Transmission",            "icon": "download",    "category": "download",      "suggested_node_type": "server"},
+  {"port": 9000,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Web service",             "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+  {"port": 9443,  "protocol": "tcp", "banner_regex": null,                              "service_name": "HTTPS Alt",               "icon": "lock",        "category": "web",           "suggested_node_type": "server"},
+  {"port": 5000,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Web service",             "icon": "globe",       "category": "web",           "suggested_node_type": "server"},
+
+  {"port": 8448,  "protocol": "tcp", "banner_regex": null,                              "service_name": "Matrix (Synapse)",        "icon": "message-square", "category": "communication", "suggested_node_type": "server"},
+  {"port": 64738, "protocol": "tcp", "banner_regex": null,                              "service_name": "Mumble",                  "icon": "mic",         "category": "communication", "suggested_node_type": "server"},
+  {"port": 25565, "protocol": "tcp", "banner_regex": null,                              "service_name": "Minecraft Server",        "icon": "cpu",         "category": "gaming",        "suggested_node_type": "server"},
+
+  {"port": 51820, "protocol": "udp", "banner_regex": null,                              "service_name": "WireGuard",               "icon": "shield",      "category": "vpn",           "suggested_node_type": "router"},
+  {"port": 1194,  "protocol": "udp", "banner_regex": null,                              "service_name": "OpenVPN",                 "icon": "shield",      "category": "vpn",           "suggested_node_type": "router"},
+  {"port": 500,   "protocol": "udp", "banner_regex": null,                              "service_name": "IPsec IKE",               "icon": "shield",      "category": "vpn",           "suggested_node_type": "router"},
+  {"port": 53,    "protocol": "udp", "banner_regex": null,                              "service_name": "DNS",                     "icon": "search",      "category": "network",       "suggested_node_type": "router"},
+  {"port": 67,    "protocol": "udp", "banner_regex": null,                              "service_name": "DHCP",                    "icon": "wifi",        "category": "network",       "suggested_node_type": "router"}
+]

backend/app/db/database.py

@@ -52,6 +52,10 @@ async def init_db() -> None:
             await conn.exec_driver_sql("ALTER TABLE nodes ADD COLUMN disk_gb REAL")
         with suppress(Exception):
             await conn.exec_driver_sql("ALTER TABLE nodes ADD COLUMN show_hardware BOOLEAN NOT NULL DEFAULT 0")
+        with suppress(Exception):
+            await conn.exec_driver_sql("ALTER TABLE nodes ADD COLUMN width REAL")
+        with suppress(Exception):
+            await conn.exec_driver_sql("ALTER TABLE nodes ADD COLUMN height REAL")
 
 
 async def get_db() -> AsyncGenerator[AsyncSession, None]:

backend/app/db/models.py

@@ -42,6 +42,8 @@ class Node(Base):
     ram_gb: Mapped[float | None] = mapped_column(Float, nullable=True)
     disk_gb: Mapped[float | None] = mapped_column(Float, nullable=True)
     show_hardware: Mapped[bool] = mapped_column(Boolean, default=False)
+    width: Mapped[float | None] = mapped_column(Float, nullable=True)
+    height: Mapped[float | None] = mapped_column(Float, nullable=True)
     last_seen: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
     response_time_ms: Mapped[int | None] = mapped_column(Integer)
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)

backend/app/main.py

@@ -22,7 +22,7 @@ async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
 
 app = FastAPI(
     title="Homelable API",
-    version="1.3.2",
+    version="1.3.3",
     lifespan=lifespan,
 )
 
@@ -30,8 +30,8 @@ app.add_middleware(
     CORSMiddleware,
     allow_origins=settings.cors_origins,
     allow_credentials=True,
-    allow_methods=["*"],
+    allow_methods=["GET", "POST", "PUT", "PATCH", "DELETE"],
-    allow_headers=["*"],
+    allow_headers=["Authorization", "Content-Type"],
 )
 
 app.include_router(auth.router, prefix="/api/v1/auth", tags=["auth"])

backend/app/schemas/canvas.py

@@ -28,6 +28,8 @@ class NodeSave(BaseModel):
     ram_gb: float | None = None
     disk_gb: float | None = None
     show_hardware: bool = False
+    width: float | None = None
+    height: float | None = None
     pos_x: float = 0
     pos_y: float = 0
 

backend/app/schemas/nodes.py

@@ -27,6 +27,8 @@ class NodeBase(BaseModel):
     ram_gb: float | None = None
     disk_gb: float | None = None
     show_hardware: bool = False
+    width: float | None = None
+    height: float | None = None
 
 
 class NodeCreate(NodeBase):
@@ -56,6 +58,8 @@ class NodeUpdate(BaseModel):
     ram_gb: float | None = None
     disk_gb: float | None = None
     show_hardware: bool | None = None
+    width: float | None = None
+    height: float | None = None
 
 
 class NodeResponse(NodeBase):

backend/app/services/fingerprint.py

@@ -1,18 +1,28 @@
 """Match nmap scan results against service_signatures.json."""
 import json
 import re
+import threading
 from pathlib import Path
 from typing import Any
 
 _SIGNATURES: list[dict[str, Any]] | None = None
+_LOCK = threading.Lock()
 
 
 def _load() -> list[dict[str, Any]]:
     global _SIGNATURES
     if _SIGNATURES is None:
-        path = Path(__file__).parent.parent.parent / "data" / "service_signatures.json"
+        with _LOCK:
-        with open(path) as f:
+            if _SIGNATURES is None:
-            _SIGNATURES = json.load(f)
+                path = Path(__file__).parent.parent / "data" / "service_signatures.json"
+                try:
+                    with open(path) as f:
+                        _SIGNATURES = json.load(f)
+                except FileNotFoundError as err:
+                    raise FileNotFoundError(
+                        f"service_signatures.json not found at {path}. "
+                        "This file should be bundled with the application."
+                    ) from err
     return _SIGNATURES
 
 

backend/tests/test_canvas.py

@@ -191,3 +191,49 @@ async def test_save_canvas_hardware_fields_cleared_on_update(client: AsyncClient
     node = canvas["nodes"][0]
     assert node["cpu_count"] is None
     assert node["ram_gb"] is None
+
+
+# ── node width / height (resizable nodes) ─────────────────────────────────────
+
+async def test_save_canvas_persists_node_dimensions(client: AsyncClient, headers: dict):
+    n1 = node_payload(width=320.0, height=180.0)
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1], "edges": [], "viewport": {}}, headers=headers)
+
+    canvas = (await client.get("/api/v1/canvas", headers=headers)).json()
+    node = canvas["nodes"][0]
+    assert node["width"] == 320.0
+    assert node["height"] == 180.0
+
+
+async def test_save_canvas_dimensions_default_null(client: AsyncClient, headers: dict):
+    n1 = node_payload()
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1], "edges": [], "viewport": {}}, headers=headers)
+
+    canvas = (await client.get("/api/v1/canvas", headers=headers)).json()
+    assert canvas["nodes"][0]["width"] is None
+    assert canvas["nodes"][0]["height"] is None
+
+
+async def test_save_canvas_dimensions_updated_on_resize(client: AsyncClient, headers: dict):
+    n1 = node_payload(width=140.0, height=50.0)
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1], "edges": [], "viewport": {}}, headers=headers)
+
+    n1_resized = {**n1, "width": 280.0, "height": 120.0}
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1_resized], "edges": [], "viewport": {}}, headers=headers)
+
+    canvas = (await client.get("/api/v1/canvas", headers=headers)).json()
+    node = canvas["nodes"][0]
+    assert node["width"] == 280.0
+    assert node["height"] == 120.0
+
+
+async def test_save_canvas_dimensions_cleared_when_null(client: AsyncClient, headers: dict):
+    n1 = node_payload(width=300.0, height=200.0)
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1], "edges": [], "viewport": {}}, headers=headers)
+
+    n1_cleared = {**n1, "width": None, "height": None}
+    await client.post("/api/v1/canvas/save", json={"nodes": [n1_cleared], "edges": [], "viewport": {}}, headers=headers)
+
+    canvas = (await client.get("/api/v1/canvas", headers=headers)).json()
+    assert canvas["nodes"][0]["width"] is None
+    assert canvas["nodes"][0]["height"] is None

backend/tests/test_integration.py

@@ -0,0 +1,185 @@
+"""
+Integration tests — run against a live Docker stack.
+
+Skipped unless INTEGRATION_BASE_URL is set (done automatically in docker-ci.yml).
+
+Usage (local):
+    INTEGRATION_BASE_URL=http://localhost:8000 \
+    INTEGRATION_USERNAME=admin \
+    INTEGRATION_PASSWORD=your-password \
+    pytest backend/tests/test_integration.py -v
+"""
+
+import os
+
+import httpx
+import pytest
+
+BASE_URL = os.environ.get("INTEGRATION_BASE_URL", "")
+USERNAME = os.environ.get("INTEGRATION_USERNAME", "admin")
+_PASSWORD_RAW = os.environ.get("INTEGRATION_PASSWORD", "")
+
+pytestmark = pytest.mark.skipif(
+    not BASE_URL,
+    reason="INTEGRATION_BASE_URL not set — skipping live-stack tests",
+)
+
+
+def _require_password() -> str:
+    if not _PASSWORD_RAW:
+        pytest.fail("INTEGRATION_PASSWORD env var is required for live-stack tests")
+    return _PASSWORD_RAW
+
+
+PASSWORD = _PASSWORD_RAW  # resolved at call time via _require_password() in fixture
+
+
+# ── Fixtures ──────────────────────────────────────────────────────────────────
+
+@pytest.fixture(scope="module")
+def token() -> str:
+    pw = _require_password()
+    res = httpx.post(
+        f"{BASE_URL}/api/v1/auth/login",
+        json={"username": USERNAME, "password": pw},
+        timeout=10,
+    )
+    assert res.status_code == 200, f"Login failed ({res.status_code}): {res.text}"
+    return res.json()["access_token"]
+
+
+@pytest.fixture(scope="module")
+def auth(token: str) -> dict:
+    return {"Authorization": f"Bearer {token}"}
+
+
+@pytest.fixture()
+def restored_canvas(auth):
+    """Save the current canvas before the test and restore it afterward."""
+    before = httpx.get(f"{BASE_URL}/api/v1/canvas", headers=auth, timeout=10).json()
+    yield
+    httpx.post(f"{BASE_URL}/api/v1/canvas/save", json=before, headers=auth, timeout=10)
+
+
+def _save_canvas(auth, nodes, edges=None):
+    payload = {
+        "nodes": nodes,
+        "edges": edges or [],
+        "viewport": {"x": 0, "y": 0, "zoom": 1},
+    }
+    res = httpx.post(f"{BASE_URL}/api/v1/canvas/save", json=payload, headers=auth, timeout=10)
+    assert res.status_code == 200, f"Canvas save failed ({res.status_code}): {res.text}"
+    return res
+
+
+def _node(node_id: str, label: str, node_type: str = "server", **extra) -> dict:
+    """Build a NodeSave-compatible dict (flat API format, not React Flow format)."""
+    return {
+        "id": node_id,
+        "type": node_type,
+        "label": label,
+        "status": "unknown",
+        "services": [],
+        "pos_x": extra.pop("pos_x", 0),
+        "pos_y": extra.pop("pos_y", 0),
+        **extra,
+    }
+
+
+# ── Health ────────────────────────────────────────────────────────────────────
+
+def test_health_endpoint():
+    res = httpx.get(f"{BASE_URL}/api/v1/health", timeout=10)
+    assert res.status_code == 200
+
+
+# ── Auth ──────────────────────────────────────────────────────────────────────
+
+def test_login_returns_token():
+    pw = _require_password()
+    res = httpx.post(
+        f"{BASE_URL}/api/v1/auth/login",
+        json={"username": USERNAME, "password": pw},
+        timeout=10,
+    )
+    assert res.status_code == 200
+    data = res.json()
+    assert "access_token" in data
+    assert data["token_type"] == "bearer"
+
+
+def test_login_bad_credentials():
+    res = httpx.post(
+        f"{BASE_URL}/api/v1/auth/login",
+        json={"username": USERNAME, "password": "definitely-wrong"},
+        timeout=10,
+    )
+    assert res.status_code == 401
+
+
+def test_protected_route_without_token():
+    res = httpx.get(f"{BASE_URL}/api/v1/canvas", timeout=10)
+    assert res.status_code == 401
+
+
+# ── Canvas round-trip ─────────────────────────────────────────────────────────
+
+def test_canvas_load_returns_valid_structure(auth):
+    res = httpx.get(f"{BASE_URL}/api/v1/canvas", headers=auth, timeout=10)
+    assert res.status_code == 200
+    data = res.json()
+    assert "nodes" in data
+    assert "edges" in data
+    assert isinstance(data["nodes"], list)
+    assert isinstance(data["edges"], list)
+
+
+def test_canvas_save_and_reload(auth, restored_canvas):
+    _save_canvas(auth, [_node("integ-node-1", "CI Server", pos_x=100, pos_y=200)])
+
+    data = httpx.get(f"{BASE_URL}/api/v1/canvas", headers=auth, timeout=10).json()
+    assert len(data["nodes"]) == 1
+
+    node = data["nodes"][0]
+    assert node["id"] == "integ-node-1"
+    assert node["label"] == "CI Server"
+    assert node["type"] == "server"
+    assert node["pos_x"] == 100
+    assert node["pos_y"] == 200
+
+
+def test_canvas_save_preserves_node_dimensions(auth, restored_canvas):
+    """Width/height survive a save→reload cycle through the real DB."""
+    _save_canvas(auth, [
+        _node("resized-node", "Big Router", node_type="router", width=320.0, height=150.0)
+    ])
+
+    nodes = httpx.get(f"{BASE_URL}/api/v1/canvas", headers=auth, timeout=10).json()["nodes"]
+    node = next((n for n in nodes if n["id"] == "resized-node"), None)
+    assert node is not None
+    assert node["width"] == 320.0
+    assert node["height"] == 150.0
+
+
+def test_canvas_save_with_edge(auth, restored_canvas):
+    _save_canvas(
+        auth,
+        nodes=[
+            _node("n-src", "Router", node_type="router"),
+            _node("n-dst", "Server", node_type="server", pos_x=200),
+        ],
+        edges=[{
+            "id": "e-eth",
+            "source": "n-src",
+            "target": "n-dst",
+            "type": "ethernet",
+        }],
+    )
+
+    data = httpx.get(f"{BASE_URL}/api/v1/canvas", headers=auth, timeout=10).json()
+    assert len(data["edges"]) == 1
+    edge = data["edges"][0]
+    # EdgeResponse uses source/target (not source_id/target_id)
+    assert edge["source"] == "n-src"
+    assert edge["target"] == "n-dst"
+    assert edge["type"] == "ethernet"

docker-compose.ci.yml

@@ -0,0 +1,14 @@
+# CI override — exposes backend port 8000 and injects credentials.
+# Usage: docker compose -f docker-compose.yml -f docker-compose.ci.yml up -d backend frontend
+#
+# AUTH_PASSWORD_HASH uses $$ escaping: docker-compose converts $$ → $ before
+# passing to the container, so the backend receives a valid bcrypt hash.
+# This avoids the project .env file being subject to docker-compose $VAR expansion.
+services:
+  backend:
+    ports:
+      - "8000:8000"
+    environment:
+      AUTH_USERNAME: admin
+      # bcrypt hash of "admin" — $$ is docker-compose escape for literal $
+      AUTH_PASSWORD_HASH: $$2b$$12$$RtMbyw17l4N5UGzeXMNAWuzCaVV.XFBY7ZetWheQhxcBDcxahapkG

docker-compose.yml

@@ -17,6 +17,12 @@ services:
     # Required for ping-based status checks
     cap_add:
       - NET_RAW
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8000/api/v1/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 6
+      start_period: 15s
 
   mcp:
     build:

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "frontend",
-  "version": "1.0.0",
+  "version": "1.3.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "frontend",
-      "version": "1.0.0",
+      "version": "1.3.3",
       "dependencies": {
         "@base-ui/react": "^1.2.0",
         "@dagrejs/dagre": "^2.0.4",
@@ -1492,9 +1492,9 @@
       "license": "MIT"
     },
     "node_modules/@eslint/config-array/node_modules/brace-expansion": {
-      "version": "1.1.12",
+      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
-      "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+      "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1573,9 +1573,9 @@
       "license": "MIT"
     },
     "node_modules/@eslint/eslintrc/node_modules/brace-expansion": {
-      "version": "1.1.12",
+      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
-      "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+      "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -5022,9 +5022,9 @@
       "license": "MIT"
     },
     "node_modules/eslint/node_modules/brace-expansion": {
-      "version": "1.1.12",
+      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
-      "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+      "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -7982,9 +7982,9 @@
       }
     },
     "node_modules/router/node_modules/path-to-regexp": {
-      "version": "8.3.0",
+      "version": "8.4.0",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.4.0.tgz",
-      "integrity": "sha512-7jdwVIRtsP8MYpdXSwOS0YdD0Du+qOoF/AEPIt88PcCFrZCzx41oxku1jD88hZBwbNUIEfpqvuhjFaMAqMTWnA==",
+      "integrity": "sha512-PuseHIvAnz3bjrM2rGJtSgo1zjgxapTLZ7x2pjhzWwlp4SJQgK3f3iZIQwkpEnBaKz6seKBADpM4B4ySkuYypg==",
       "license": "MIT",
       "funding": {
         "type": "opencollective",

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "1.3.2",
+  "version": "1.3.3",
   "type": "module",
   "scripts": {
     "dev": "vite",

frontend/src/App.tsx

@@ -2,6 +2,7 @@ import { useEffect, useCallback, useRef, useState } from 'react'
 import { ReactFlowProvider, type Connection, type Edge } from '@xyflow/react'
 import { type Node } from '@xyflow/react'
 import { applyDagreLayout } from '@/utils/layout'
+import { serializeNode, serializeEdge, deserializeApiNode, deserializeApiEdge, type ApiNode, type ApiEdge } from '@/utils/canvasSerializer'
 import { generateUUID } from '@/utils/uuid'
 import { generateMarkdownTable } from '@/utils/exportMarkdown'
 import { exportToPng } from '@/utils/export'
@@ -60,76 +61,8 @@ export default function App() {
         toast.success('Canvas saved')
         return
       }
-      const nodesToSave = nodes.map((n) => {
+      const nodesToSave = nodes.map(serializeNode)
-        if (n.data.type === 'groupRect') {
+      const edgesToSave = edges.map(serializeEdge)
-          return {
-            id: n.id,
-            type: 'groupRect',
-            label: n.data.label,
-            hostname: null,
-            ip: null,
-            mac: null,
-            os: null,
-            status: 'unknown',
-            check_method: null,
-            check_target: null,
-            services: [],
-            notes: null,
-            parent_id: null,
-            container_mode: false,
-            custom_icon: null,
-            pos_x: n.position.x,
-            pos_y: n.position.y,
-            // Persist size and all rect config inside custom_colors
-            custom_colors: {
-              ...n.data.custom_colors,
-              width: n.measured?.width ?? n.width ?? 360,
-              height: n.measured?.height ?? n.height ?? 240,
-            },
-          }
-        }
-        return {
-          id: n.id,
-          type: n.data.type,
-          label: n.data.label,
-          hostname: n.data.hostname ?? null,
-          ip: n.data.ip ?? null,
-          mac: n.data.mac ?? null,
-          os: n.data.os ?? null,
-          status: n.data.status,
-          check_method: n.data.check_method ?? null,
-          check_target: n.data.check_target ?? null,
-          services: n.data.services ?? [],
-          notes: n.data.notes ?? null,
-          parent_id: n.data.parent_id ?? null,
-          container_mode: n.data.container_mode ?? false,
-          custom_colors: n.data.custom_colors ?? null,
-          custom_icon: n.data.custom_icon ?? null,
-          cpu_count: n.data.cpu_count ?? null,
-          cpu_model: n.data.cpu_model ?? null,
-          ram_gb: n.data.ram_gb ?? null,
-          disk_gb: n.data.disk_gb ?? null,
-          show_hardware: n.data.show_hardware ?? false,
-          pos_x: n.position.x,
-          pos_y: n.position.y,
-        }
-      })
-      const edgesToSave = edges.map((e) => ({
-        id: e.id,
-        source: e.source,
-        target: e.target,
-        type: e.data?.type ?? 'ethernet',
-        label: e.data?.label ?? null,
-        vlan_id: e.data?.vlan_id ?? null,
-        speed: e.data?.speed ?? null,
-        custom_color: e.data?.custom_color ?? null,
-        path_style: e.data?.path_style ?? null,
-        animated: e.data?.animated ?? false,
-        // Normalize stub handle IDs: "top-t" / "bottom-t" are invisible target stubs;
-        // map them back to their canonical source handle ID so reload works correctly.
-        source_handle: e.sourceHandle === 'top-t' ? 'top' : e.sourceHandle === 'bottom-t' ? 'bottom' : (e.sourceHandle ?? null),
-        target_handle: e.targetHandle === 'top-t' ? 'top' : e.targetHandle === 'bottom-t' ? 'bottom' : (e.targetHandle ?? null),
-      }))
       await canvasApi.save({ nodes: nodesToSave, edges: edgesToSave, viewport: { theme_id: activeTheme } })
       markSaved()
       toast.success('Canvas saved')
@@ -166,44 +99,12 @@ export default function App() {
         if (apiNodes.length > 0) {
           // Build a map of proxmox container mode to know if children should be nested
           const proxmoxContainerMap = new Map<string, boolean>(
-            apiNodes
+            (apiNodes as ApiNode[])
-              .filter((n: NodeData & { id: string }) => n.type === 'proxmox')
+              .filter((n) => n.type === 'proxmox')
-              .map((n: NodeData & { id: string }) => [n.id, n.container_mode !== false])
+              .map((n) => [n.id, n.container_mode !== false])
           )
-          const rfNodes = apiNodes.map((n: NodeData & { id: string; pos_x: number; pos_y: number; parent_id?: string }) => {
+          const rfNodes = (apiNodes as ApiNode[]).map((n) => deserializeApiNode(n, proxmoxContainerMap))
-            if (n.type === 'groupRect') {
+          const rfEdges = (apiEdges as ApiEdge[]).map(deserializeApiEdge)
-              const w = n.custom_colors?.width ?? 360
-              const h = n.custom_colors?.height ?? 240
-              const z = n.custom_colors?.z_order ?? 1
-              return {
-                id: n.id,
-                type: 'groupRect',
-                position: { x: n.pos_x, y: n.pos_y },
-                data: n,
-                width: w,
-                height: h,
-                zIndex: z - 10,
-              }
-            }
-            const parentIsContainer = n.parent_id ? (proxmoxContainerMap.get(n.parent_id) ?? false) : false
-            return {
-              id: n.id,
-              type: n.type,
-              position: { x: n.pos_x, y: n.pos_y },
-              data: n,
-              ...(n.parent_id && parentIsContainer ? { parentId: n.parent_id, extent: 'parent' as const } : {}),
-              ...(n.type === 'proxmox' && n.container_mode !== false ? { width: 300, height: 200 } : {}),
-            }
-          })
-          const rfEdges = apiEdges.map((e: EdgeData & { id: string; source: string; target: string; source_handle?: string; target_handle?: string }) => ({
-            id: e.id,
-            source: e.source,
-            target: e.target,
-            type: e.type,
-            sourceHandle: e.source_handle ?? null,
-            targetHandle: e.target_handle ?? null,
-            data: e,
-          }))
           const savedTheme = res.data.viewport?.theme_id
           if (savedTheme) setTheme(savedTheme)
           loadCanvas(rfNodes, rfEdges)

frontend/src/components/__tests__/LoginPage.test.tsx

@@ -0,0 +1,146 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import { LoginPage } from '../LoginPage'
+import { useAuthStore } from '@/stores/authStore'
+
+vi.mock('@/api/client', () => ({
+  authApi: {
+    login: vi.fn(),
+  },
+}))
+
+import { authApi } from '@/api/client'
+
+describe('LoginPage', () => {
+  beforeEach(() => {
+    useAuthStore.setState({ token: null, isAuthenticated: false })
+    vi.mocked(authApi.login).mockReset()
+  })
+
+  // ── Rendering ────────────────────────────────────────────────────────────
+
+  it('renders username and password fields', () => {
+    render(<LoginPage />)
+    expect(screen.getByLabelText('Username')).toBeDefined()
+    expect(screen.getByLabelText('Password')).toBeDefined()
+  })
+
+  it('renders a Sign in button', () => {
+    render(<LoginPage />)
+    expect(screen.getByRole('button', { name: /sign in/i })).toBeDefined()
+  })
+
+  // ── Security checks ──────────────────────────────────────────────────────
+
+  it('password field type is "password" — not rendered as plain text', () => {
+    render(<LoginPage />)
+    const pw = screen.getByLabelText('Password') as HTMLInputElement
+    expect(pw.type).toBe('password')
+  })
+
+  it('username field has autocomplete="username"', () => {
+    render(<LoginPage />)
+    const un = screen.getByLabelText('Username') as HTMLInputElement
+    expect(un.getAttribute('autocomplete')).toBe('username')
+  })
+
+  it('password field has autocomplete="current-password" (supports password managers)', () => {
+    render(<LoginPage />)
+    const pw = screen.getByLabelText('Password') as HTMLInputElement
+    expect(pw.getAttribute('autocomplete')).toBe('current-password')
+  })
+
+  it('shows a generic error message — no credential enumeration', async () => {
+    vi.mocked(authApi.login).mockRejectedValue(new Error('401'))
+    render(<LoginPage />)
+    fireEvent.change(screen.getByLabelText('Username'), { target: { value: 'admin' } })
+    fireEvent.change(screen.getByLabelText('Password'), { target: { value: 'wrongpass' } })
+    fireEvent.submit(screen.getByRole('button', { name: /sign in/i }).closest('form')!)
+    await waitFor(() => {
+      expect(screen.getByText('Invalid username or password')).toBeDefined()
+    })
+    // Must show exactly ONE error — not separate per-field messages (no enumeration)
+    const errors = document.querySelectorAll('p.text-\\[\\#f85149\\]')
+    expect(errors.length).toBe(1)
+    expect(errors[0].textContent).toBe('Invalid username or password')
+  })
+
+  it('clears previous error before each new attempt', async () => {
+    vi.mocked(authApi.login)
+      .mockRejectedValueOnce(new Error('401'))
+      .mockRejectedValueOnce(new Error('401'))
+    render(<LoginPage />)
+    const form = screen.getByRole('button', { name: /sign in/i }).closest('form')!
+    fireEvent.change(screen.getByLabelText('Username'), { target: { value: 'admin' } })
+    fireEvent.change(screen.getByLabelText('Password'), { target: { value: 'bad' } })
+    fireEvent.submit(form)
+    await waitFor(() => screen.getByText('Invalid username or password'))
+    fireEvent.submit(form)
+    // Error clears while loading (setError('') before try)
+    await waitFor(() => screen.getByText('Invalid username or password'))
+    expect(screen.getAllByText('Invalid username or password')).toHaveLength(1)
+  })
+
+  it('disables submit button while loading — prevents double-submit', async () => {
+    let resolve!: (v: unknown) => void
+    vi.mocked(authApi.login).mockReturnValue(new Promise((r) => { resolve = r }))
+    render(<LoginPage />)
+    fireEvent.change(screen.getByLabelText('Username'), { target: { value: 'admin' } })
+    fireEvent.change(screen.getByLabelText('Password'), { target: { value: 'pass' } })
+    fireEvent.submit(screen.getByRole('button', { name: /sign in/i }).closest('form')!)
+    await waitFor(() => {
+      expect((screen.getByRole('button', { name: '' }) as HTMLButtonElement).disabled).toBe(true)
+    })
+    resolve({ data: { access_token: 'tok' } })
+  })
+
+  it('calls authApi.login with credentials via POST body (not URL params)', async () => {
+    vi.mocked(authApi.login).mockResolvedValue({ data: { access_token: 'tok' } } as never)
+    render(<LoginPage />)
+    fireEvent.change(screen.getByLabelText('Username'), { target: { value: 'admin' } })
+    fireEvent.change(screen.getByLabelText('Password'), { target: { value: 'secret' } })
+    fireEvent.submit(screen.getByRole('button', { name: /sign in/i }).closest('form')!)
+    await waitFor(() => {
+      expect(authApi.login).toHaveBeenCalledWith('admin', 'secret')
+    })
+  })
+
+  it('stores token in authStore on successful login', async () => {
+    vi.mocked(authApi.login).mockResolvedValue({ data: { access_token: 'mytoken123' } } as never)
+    render(<LoginPage />)
+    fireEvent.change(screen.getByLabelText('Username'), { target: { value: 'admin' } })
+    fireEvent.change(screen.getByLabelText('Password'), { target: { value: 'correct' } })
+    fireEvent.submit(screen.getByRole('button', { name: /sign in/i }).closest('form')!)
+    await waitFor(() => {
+      expect(useAuthStore.getState().isAuthenticated).toBe(true)
+      expect(useAuthStore.getState().token).toBe('mytoken123')
+    })
+  })
+
+  it('token persisted via sessionStorage — not localStorage', () => {
+    // The authStore uses createJSONStorage(() => sessionStorage)
+    // Verify the storage key exists in sessionStorage after login
+    render(<LoginPage />)
+    // Even before login, the store is backed by sessionStorage
+    expect(typeof sessionStorage).toBe('object')
+    // localStorage should NOT contain the auth token
+    expect(localStorage.getItem('homelable-auth')).toBeNull()
+  })
+
+  it('does not show error on initial render', () => {
+    render(<LoginPage />)
+    expect(screen.queryByText('Invalid username or password')).toBeNull()
+  })
+
+  it('requires username (HTML required attribute)', () => {
+    render(<LoginPage />)
+    const un = screen.getByLabelText('Username') as HTMLInputElement
+    expect(un.required).toBe(true)
+  })
+
+  it('requires password (HTML required attribute)', () => {
+    render(<LoginPage />)
+    const pw = screen.getByLabelText('Password') as HTMLInputElement
+    expect(pw.required).toBe(true)
+  })
+})

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

@@ -0,0 +1,146 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render } from '@testing-library/react'
+import { CanvasContainer } from '../CanvasContainer'
+import { useCanvasStore } from '@/stores/canvasStore'
+import { useThemeStore } from '@/stores/themeStore'
+import type { Node, Edge } from '@xyflow/react'
+import type { NodeData, EdgeData } from '@/types'
+
+// Capture props passed to ReactFlow so we can test the callbacks
+let rfProps: Record<string, unknown> = {}
+
+vi.mock('@xyflow/react', () => ({
+  ReactFlow: (props: Record<string, unknown>) => {
+    rfProps = props
+    return <div data-testid="react-flow" />
+  },
+  Background: () => null,
+  Controls: () => null,
+  BackgroundVariant: { Dots: 'dots' },
+  ConnectionMode: { Loose: 'loose' },
+}))
+
+vi.mock('@xyflow/react/dist/style.css', () => ({}))
+
+function makeNode(id: string): Node<NodeData> {
+  return {
+    id,
+    type: 'server',
+    position: { x: 0, y: 0 },
+    data: { label: id, type: 'server', status: 'unknown', services: [] },
+  }
+}
+
+function makeEdge(id: string): Edge<EdgeData> {
+  return { id, source: 'n1', target: 'n2', type: 'ethernet', data: { type: 'ethernet' } }
+}
+
+describe('CanvasContainer', () => {
+  beforeEach(() => {
+    rfProps = {}
+    useCanvasStore.setState({ nodes: [], edges: [], selectedNodeId: null })
+    useThemeStore.setState({ activeTheme: 'default' })
+  })
+
+  // ── Rendering ─────────────────────────────────────────────────────────────
+
+  it('renders without crashing', () => {
+    const { getByTestId } = render(<CanvasContainer />)
+    expect(getByTestId('react-flow')).toBeDefined()
+  })
+
+  it('passes nodes from store to ReactFlow', () => {
+    useCanvasStore.setState({ nodes: [makeNode('n1'), makeNode('n2')] })
+    render(<CanvasContainer />)
+    expect((rfProps.nodes as Node[]).length).toBe(2)
+  })
+
+  it('passes edges from store to ReactFlow', () => {
+    useCanvasStore.setState({
+      nodes: [makeNode('n1'), makeNode('n2')],
+      edges: [makeEdge('e1')],
+    })
+    render(<CanvasContainer />)
+    expect((rfProps.edges as Edge[]).length).toBe(1)
+  })
+
+  // ── Node click → selection ────────────────────────────────────────────────
+
+  it('calls setSelectedNode with node id on node click', () => {
+    const node = makeNode('n1')
+    useCanvasStore.setState({ nodes: [node] })
+    render(<CanvasContainer />)
+    ;(rfProps.onNodeClick as (...args: unknown[]) => unknown)({} as MouseEvent, node)
+    expect(useCanvasStore.getState().selectedNodeId).toBe('n1')
+  })
+
+  // ── Pane click → deselect ─────────────────────────────────────────────────
+
+  it('calls setSelectedNode(null) on pane click', () => {
+    useCanvasStore.setState({ selectedNodeId: 'n1' })
+    render(<CanvasContainer />)
+    ;(rfProps.onPaneClick as (...args: unknown[]) => unknown)()
+    expect(useCanvasStore.getState().selectedNodeId).toBeNull()
+  })
+
+  // ── Edge double-click ─────────────────────────────────────────────────────
+
+  it('calls onEdgeDoubleClick prop when an edge is double-clicked', () => {
+    const onEdgeDoubleClick = vi.fn()
+    const edge = makeEdge('e1')
+    render(<CanvasContainer onEdgeDoubleClick={onEdgeDoubleClick} />)
+    ;(rfProps.onEdgeDoubleClick as (...args: unknown[]) => unknown)({} as MouseEvent, edge)
+    expect(onEdgeDoubleClick).toHaveBeenCalledWith(edge)
+  })
+
+  it('does not throw when onEdgeDoubleClick is not provided', () => {
+    const edge = makeEdge('e1')
+    render(<CanvasContainer />)
+    expect(() => {
+      ;(rfProps.onEdgeDoubleClick as (...args: unknown[]) => unknown)({} as MouseEvent, edge)
+    }).not.toThrow()
+  })
+
+  // ── Connection validation ─────────────────────────────────────────────────
+
+  it('isValidConnection returns false for self-connections', () => {
+    render(<CanvasContainer />)
+    const isValid = rfProps.isValidConnection as (c: { source: string; target: string }) => boolean
+    expect(isValid({ source: 'n1', target: 'n1' })).toBe(false)
+  })
+
+  it('isValidConnection returns true for different nodes', () => {
+    render(<CanvasContainer />)
+    const isValid = rfProps.isValidConnection as (c: { source: string; target: string }) => boolean
+    expect(isValid({ source: 'n1', target: 'n2' })).toBe(true)
+  })
+
+  // ── onConnect prop passthrough ────────────────────────────────────────────
+
+  it('passes onConnect prop to ReactFlow', () => {
+    const onConnect = vi.fn()
+    render(<CanvasContainer onConnect={onConnect} />)
+    ;(rfProps.onConnect as (...args: unknown[]) => unknown)({ source: 'a', target: 'b', sourceHandle: null, targetHandle: null })
+    expect(onConnect).toHaveBeenCalledOnce()
+  })
+
+  // ── onNodeDragStart prop passthrough ──────────────────────────────────────
+
+  it('passes onNodeDragStart prop to ReactFlow', () => {
+    const onNodeDragStart = vi.fn()
+    render(<CanvasContainer onNodeDragStart={onNodeDragStart} />)
+    expect(rfProps.onNodeDragStart).toBe(onNodeDragStart)
+  })
+
+  // ── Canvas settings ───────────────────────────────────────────────────────
+
+  it('enables snapToGrid', () => {
+    render(<CanvasContainer />)
+    expect(rfProps.snapToGrid).toBe(true)
+  })
+
+  it('sets snapGrid to [16, 16]', () => {
+    render(<CanvasContainer />)
+    expect(rfProps.snapGrid).toEqual([16, 16])
+  })
+})

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

@@ -1,5 +1,5 @@
 import { createElement } from 'react'
-import { Handle, Position, type NodeProps, type Node } from '@xyflow/react'
+import { Handle, Position, NodeResizer, type NodeProps, type Node } from '@xyflow/react'
 import { Cpu, MemoryStick, HardDrive, type LucideIcon } from 'lucide-react'
 import type { NodeData } from '@/types'
 import { resolveNodeColors } from '@/utils/nodeColors'
@@ -18,7 +18,7 @@ function formatStorage(gb: number): string {
   return `${gb} GB`
 }
 
-export function BaseNode({ data, selected, icon: typeIcon }: BaseNodeProps) {
+export function BaseNode({ data, selected, icon: typeIcon, width, height }: BaseNodeProps) {
   const activeTheme = useThemeStore((s) => s.activeTheme)
   const hideIp = useCanvasStore((s) => s.hideIp)
   const theme = THEMES[activeTheme]
@@ -43,8 +43,17 @@ export function BaseNode({ data, selected, icon: typeIcon }: BaseNodeProps) {
           : 'none',
         opacity: data.status === 'offline' ? 0.55 : 1,
         minWidth: 140,
+        width: width ? '100%' : undefined,
+        height: height ? '100%' : undefined,
       }}
     >
+      <NodeResizer
+        isVisible={selected}
+        minWidth={140}
+        minHeight={50}
+        lineStyle={{ borderColor: colors.border, borderWidth: 1 }}
+        handleStyle={{ borderColor: colors.border, background: colors.border, width: 8, height: 8 }}
+      />
       <Handle
         type="source"
         position={Position.Top}
@@ -69,7 +78,7 @@ export function BaseNode({ data, selected, icon: typeIcon }: BaseNodeProps) {
         {/* Label + IP */}
         <div className="flex flex-col min-w-0">
           <div
-            className="text-xs font-medium leading-tight truncate max-w-[110px]"
+            className="text-xs font-medium leading-tight truncate"
             style={{ color: theme.colors.nodeLabelColor }}
             title={data.label}
           >

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

@@ -0,0 +1,164 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import { EdgeModal } from '../EdgeModal'
+
+describe('EdgeModal', () => {
+  // ── Visibility ────────────────────────────────────────────────────────────
+
+  it('renders nothing when closed', () => {
+    const { container } = render(<EdgeModal open={false} onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(container.querySelector('[role="dialog"]')).toBeNull()
+  })
+
+  it('renders form when open', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(screen.getByText('Connect Nodes')).toBeDefined()
+  })
+
+  it('uses custom title when provided', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} title="Edit Link" />)
+    expect(screen.getByText('Edit Link')).toBeDefined()
+  })
+
+  // ── Submit button label ───────────────────────────────────────────────────
+
+  it('shows "Connect" button when onDelete is not provided', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(screen.getByRole('button', { name: 'Connect' })).toBeDefined()
+  })
+
+  it('shows "Save" button when onDelete is provided', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} onDelete={vi.fn()} />)
+    expect(screen.getByRole('button', { name: 'Save' })).toBeDefined()
+  })
+
+  // ── Default submit ────────────────────────────────────────────────────────
+
+  it('calls onSubmit with default ethernet type', () => {
+    const onSubmit = vi.fn()
+    const onClose = vi.fn()
+    render(<EdgeModal open onClose={onClose} onSubmit={onSubmit} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit).toHaveBeenCalledOnce()
+    expect(onSubmit.mock.calls[0][0].type).toBe('ethernet')
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  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.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].label).toBe('uplink')
+  })
+
+  it('omits label from payload when empty', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].label).toBeUndefined()
+  })
+
+  // ── VLAN ID field ─────────────────────────────────────────────────────────
+
+  it('does not show VLAN ID field for ethernet type', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(screen.queryByPlaceholderText('e.g. 20')).toBeNull()
+  })
+
+  it('submits integer vlan_id when type is vlan', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} initial={{ type: 'vlan', vlan_id: 20 }} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].vlan_id).toBe(20)
+  })
+
+  it('omits vlan_id from payload for non-vlan types', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} initial={{ type: 'wifi' }} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].vlan_id).toBeUndefined()
+  })
+
+  // ── Path style ────────────────────────────────────────────────────────────
+
+  it('defaults to bezier path style', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].path_style).toBe('bezier')
+  })
+
+  it('switches path style to smooth on click', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.click(screen.getByText('Smooth step'))
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].path_style).toBe('smooth')
+  })
+
+  // ── Animated toggle ───────────────────────────────────────────────────────
+
+  it('flow animation defaults to off', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    // animated: false → omitted (falsy || undefined)
+    expect(onSubmit.mock.calls[0][0].animated).toBeFalsy()
+  })
+
+  it('toggling animation sends animated: true', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} />)
+    // Find the toggle: it's the only button with aria-pressed attribute
+    const allButtons = screen.getAllByRole('button')
+    const toggle = allButtons.find((b) => b.hasAttribute('aria-pressed'))!
+    expect(toggle).toBeDefined()
+    fireEvent.click(toggle)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].animated).toBe(true)
+  })
+
+  // ── Pre-fill ──────────────────────────────────────────────────────────────
+
+  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
+    expect(input.value).toBe('trunk')
+  })
+
+  it('pre-fills path style from initial prop', () => {
+    const onSubmit = vi.fn()
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={onSubmit} initial={{ path_style: 'smooth' }} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Connect' }))
+    expect(onSubmit.mock.calls[0][0].path_style).toBe('smooth')
+  })
+
+  // ── Cancel & Delete ───────────────────────────────────────────────────────
+
+  it('calls onClose when Cancel is clicked', () => {
+    const onClose = vi.fn()
+    render(<EdgeModal open onClose={onClose} onSubmit={vi.fn()} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Cancel' }))
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('shows Delete button when onDelete is provided', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} onDelete={vi.fn()} />)
+    expect(screen.getByRole('button', { name: 'Delete' })).toBeDefined()
+  })
+
+  it('does not show Delete button without onDelete', () => {
+    render(<EdgeModal open onClose={vi.fn()} onSubmit={vi.fn()} />)
+    expect(screen.queryByRole('button', { name: 'Delete' })).toBeNull()
+  })
+
+  it('calls onDelete and onClose when Delete is clicked', () => {
+    const onDelete = vi.fn()
+    const onClose = vi.fn()
+    render(<EdgeModal open onClose={onClose} onSubmit={vi.fn()} onDelete={onDelete} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Delete' }))
+    expect(onDelete).toHaveBeenCalledOnce()
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+})

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

@@ -0,0 +1,164 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import { PendingDeviceModal, type PendingDevice } from '../PendingDeviceModal'
+
+function makeDevice(overrides: Partial<PendingDevice> = {}): PendingDevice {
+  return {
+    id: 'dev-1',
+    ip: '192.168.1.100',
+    mac: 'aa:bb:cc:dd:ee:ff',
+    hostname: 'pve.local',
+    os: 'Linux',
+    services: [],
+    suggested_type: 'server',
+    status: 'pending',
+    discovered_at: '2024-01-15T10:30:00Z',
+    ...overrides,
+  }
+}
+
+describe('PendingDeviceModal', () => {
+  // ── Visibility ────────────────────────────────────────────────────────────
+
+  it('renders nothing when device is null', () => {
+    const { container } = render(
+      <PendingDeviceModal device={null} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(container.querySelector('[role="dialog"]')).toBeNull()
+  })
+
+  it('renders dialog when device is provided', () => {
+    render(
+      <PendingDeviceModal device={makeDevice()} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByRole('dialog')).toBeDefined()
+  })
+
+  // ── Device info display ───────────────────────────────────────────────────
+
+  it('shows hostname as title when available', () => {
+    render(
+      <PendingDeviceModal device={makeDevice({ hostname: 'myserver.local' })} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    // hostname appears in both title and info row — check at least one match
+    expect(screen.getAllByText('myserver.local').length).toBeGreaterThan(0)
+  })
+
+  it('falls back to IP as title when hostname is null', () => {
+    render(
+      <PendingDeviceModal device={makeDevice({ hostname: null })} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    // IP appears in both title and info row when hostname is absent
+    expect(screen.getAllByText('192.168.1.100').length).toBeGreaterThan(0)
+  })
+
+  it('shows IP address', () => {
+    render(
+      <PendingDeviceModal device={makeDevice()} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('192.168.1.100')).toBeDefined()
+  })
+
+  it('shows MAC address when present', () => {
+    render(
+      <PendingDeviceModal device={makeDevice()} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('aa:bb:cc:dd:ee:ff')).toBeDefined()
+  })
+
+  it('shows OS when present', () => {
+    render(
+      <PendingDeviceModal device={makeDevice()} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('Linux')).toBeDefined()
+  })
+
+  it('does not show hostname row when hostname is null', () => {
+    render(
+      <PendingDeviceModal device={makeDevice({ hostname: null })} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    // "Hostname" label should not appear in the info rows
+    expect(screen.queryByText('Hostname')).toBeNull()
+  })
+
+  it('shows suggested type when present', () => {
+    render(
+      <PendingDeviceModal device={makeDevice({ suggested_type: 'proxmox' })} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('proxmox')).toBeDefined()
+  })
+
+  // ── Services ──────────────────────────────────────────────────────────────
+
+  it('shows "No services detected" when services list is empty', () => {
+    render(
+      <PendingDeviceModal device={makeDevice({ services: [] })} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('No services detected')).toBeDefined()
+  })
+
+  it('shows service count and details', () => {
+    const device = makeDevice({
+      services: [
+        { port: 80, protocol: 'tcp', service_name: 'HTTP', category: 'web' },
+        { port: 443, protocol: 'tcp', service_name: 'HTTPS', category: 'web' },
+      ],
+    })
+    render(
+      <PendingDeviceModal device={device} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('Services found (2)')).toBeDefined()
+    expect(screen.getByText('HTTP')).toBeDefined()
+    expect(screen.getByText('HTTPS')).toBeDefined()
+    expect(screen.getByText('80')).toBeDefined()
+    expect(screen.getByText('443')).toBeDefined()
+  })
+
+  it('shows service category when present', () => {
+    const device = makeDevice({
+      services: [{ port: 8006, protocol: 'tcp', service_name: 'Proxmox Web', category: 'hypervisor' }],
+    })
+    render(
+      <PendingDeviceModal device={device} onClose={vi.fn()} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    expect(screen.getByText('hypervisor')).toBeDefined()
+  })
+
+  // ── Actions ───────────────────────────────────────────────────────────────
+
+  it('calls onApprove with the device and onClose when Approve is clicked', () => {
+    const device = makeDevice()
+    const onApprove = vi.fn()
+    const onClose = vi.fn()
+    render(
+      <PendingDeviceModal device={device} onClose={onClose} onApprove={onApprove} onHide={vi.fn()} onIgnore={vi.fn()} />
+    )
+    fireEvent.click(screen.getByRole('button', { name: 'Approve' }))
+    expect(onApprove).toHaveBeenCalledWith(device)
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('calls onHide with the device and onClose when Hide is clicked', () => {
+    const device = makeDevice()
+    const onHide = vi.fn()
+    const onClose = vi.fn()
+    render(
+      <PendingDeviceModal device={device} onClose={onClose} onApprove={vi.fn()} onHide={onHide} onIgnore={vi.fn()} />
+    )
+    fireEvent.click(screen.getByRole('button', { name: 'Hide' }))
+    expect(onHide).toHaveBeenCalledWith(device)
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('calls onIgnore with the device and onClose when Delete is clicked', () => {
+    const device = makeDevice()
+    const onIgnore = vi.fn()
+    const onClose = vi.fn()
+    render(
+      <PendingDeviceModal device={device} onClose={onClose} onApprove={vi.fn()} onHide={vi.fn()} onIgnore={onIgnore} />
+    )
+    fireEvent.click(screen.getByRole('button', { name: 'Delete' }))
+    expect(onIgnore).toHaveBeenCalledWith(device)
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+})

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

@@ -0,0 +1,137 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import { ScanConfigModal } from '../ScanConfigModal'
+
+vi.mock('@/api/client', () => ({
+  scanApi: {
+    getConfig: vi.fn(),
+    saveConfig: vi.fn(),
+  },
+}))
+vi.mock('sonner', () => ({ toast: { success: vi.fn(), error: vi.fn(), info: vi.fn() } }))
+
+import { scanApi } from '@/api/client'
+import { toast } from 'sonner'
+
+const defaultConfig = { data: { ranges: ['192.168.1.0/24'], interval_seconds: 60 } }
+
+describe('ScanConfigModal', () => {
+  beforeEach(() => {
+    vi.mocked(scanApi.getConfig).mockResolvedValue(defaultConfig as never)
+    vi.mocked(scanApi.saveConfig).mockResolvedValue({} as never)
+    vi.mocked(toast.success).mockReset()
+    vi.mocked(toast.error).mockReset()
+  })
+
+  it('renders nothing when closed', () => {
+    const { container } = render(<ScanConfigModal open={false} onClose={vi.fn()} onScanNow={vi.fn()} />)
+    expect(container.querySelector('[role="dialog"]')).toBeNull()
+  })
+
+  it('loads config from API on open', async () => {
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await waitFor(() => {
+      expect(scanApi.getConfig).toHaveBeenCalledOnce()
+    })
+    const input = await screen.findByDisplayValue('192.168.1.0/24')
+    expect(input).toBeDefined()
+  })
+
+  it('loads interval from API on open', async () => {
+    vi.mocked(scanApi.getConfig).mockResolvedValue({ data: { ranges: ['10.0.0.0/8'], interval_seconds: 120 } } as never)
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    const input = await screen.findByDisplayValue('120')
+    expect(input).toBeDefined()
+  })
+
+  it('adds a new empty range on "Add range" click', async () => {
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    fireEvent.click(screen.getByText('Add range'))
+    const inputs = screen.getAllByPlaceholderText('192.168.1.0/24')
+    expect(inputs).toHaveLength(2)
+  })
+
+  it('delete button disabled when only one range', async () => {
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    // Only 1 range → delete button disabled
+    const trashButtons = document.querySelectorAll('button[disabled]')
+    expect(trashButtons.length).toBeGreaterThan(0)
+  })
+
+  it('can remove a range when more than one exist', async () => {
+    vi.mocked(scanApi.getConfig).mockResolvedValue({ data: { ranges: ['192.168.1.0/24', '10.0.0.0/8'], interval_seconds: 60 } } as never)
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    // Both trash buttons should be enabled
+    const trashButtons = screen.getAllByRole('button').filter((b) => !b.hasAttribute('disabled') && b.querySelector('svg'))
+    expect(trashButtons.length).toBeGreaterThanOrEqual(2)
+  })
+
+  it('shows error toast and does not save when all ranges are empty', async () => {
+    vi.mocked(scanApi.getConfig).mockResolvedValue({ data: { ranges: [''], interval_seconds: 60 } } as never)
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await waitFor(() => expect(scanApi.getConfig).toHaveBeenCalled())
+    fireEvent.click(screen.getByRole('button', { name: 'Save' }))
+    await waitFor(() => {
+      expect(toast.error).toHaveBeenCalledWith('Add at least one IP range')
+    })
+    expect(scanApi.saveConfig).not.toHaveBeenCalled()
+  })
+
+  it('saves config and closes on Save click', async () => {
+    const onClose = vi.fn()
+    render(<ScanConfigModal open onClose={onClose} onScanNow={vi.fn()} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    fireEvent.click(screen.getByRole('button', { name: 'Save' }))
+    await waitFor(() => {
+      expect(scanApi.saveConfig).toHaveBeenCalledWith({ ranges: ['192.168.1.0/24'], interval_seconds: 60 })
+      expect(toast.success).toHaveBeenCalledWith('Scan config saved')
+      expect(onClose).toHaveBeenCalledOnce()
+    })
+  })
+
+  it('shows error toast when save fails', async () => {
+    vi.mocked(scanApi.saveConfig).mockRejectedValue(new Error('network'))
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    fireEvent.click(screen.getByRole('button', { name: 'Save' }))
+    await waitFor(() => {
+      expect(toast.error).toHaveBeenCalledWith('Failed to save config')
+    })
+  })
+
+  it('calls onScanNow after saving on "Scan Now" click', async () => {
+    const onScanNow = vi.fn()
+    const onClose = vi.fn()
+    render(<ScanConfigModal open onClose={onClose} onScanNow={onScanNow} />)
+    await screen.findByDisplayValue('192.168.1.0/24')
+    fireEvent.click(screen.getByRole('button', { name: 'Scan Now' }))
+    await waitFor(() => {
+      expect(scanApi.saveConfig).toHaveBeenCalled()
+      expect(onScanNow).toHaveBeenCalledOnce()
+    })
+  })
+
+  it('calls onClose when Cancel is clicked', async () => {
+    const onClose = vi.fn()
+    render(<ScanConfigModal open onClose={onClose} onScanNow={vi.fn()} />)
+    await waitFor(() => expect(scanApi.getConfig).toHaveBeenCalled())
+    fireEvent.click(screen.getByRole('button', { name: 'Cancel' }))
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('strips whitespace from ranges before saving', async () => {
+    render(<ScanConfigModal open onClose={vi.fn()} onScanNow={vi.fn()} />)
+    const input = await screen.findByDisplayValue('192.168.1.0/24')
+    // Type a range with surrounding whitespace
+    fireEvent.change(input, { target: { value: '  10.0.0.0/8  ' } })
+    fireEvent.click(screen.getByRole('button', { name: 'Save' }))
+    await waitFor(() => {
+      expect(scanApi.saveConfig).toHaveBeenCalledWith(
+        expect.objectContaining({ ranges: ['10.0.0.0/8'] })
+      )
+    })
+  })
+})

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

@@ -0,0 +1,165 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import { SearchModal } from '../SearchModal'
+import { useCanvasStore } from '@/stores/canvasStore'
+import type { Node } from '@xyflow/react'
+import type { NodeData } from '@/types'
+
+const mockFitView = vi.fn()
+vi.mock('@xyflow/react', () => ({
+  useReactFlow: () => ({ fitView: mockFitView }),
+}))
+
+function makeNode(id: string, overrides: Partial<NodeData> = {}): Node<NodeData> {
+  return {
+    id,
+    type: overrides.type ?? 'server',
+    position: { x: 0, y: 0 },
+    data: {
+      label: id,
+      type: overrides.type ?? 'server',
+      status: 'unknown',
+      services: [],
+      ...overrides,
+    },
+  }
+}
+
+describe('SearchModal', () => {
+  beforeEach(() => {
+    useCanvasStore.setState({ nodes: [], edges: [], selectedNodeId: null })
+    mockFitView.mockReset()
+  })
+
+  it('renders nothing when closed', () => {
+    render(<SearchModal open={false} onClose={vi.fn()} />)
+    expect(screen.queryByPlaceholderText(/search nodes/i)).toBeNull()
+  })
+
+  it('renders search input when open', () => {
+    render(<SearchModal open onClose={vi.fn()} />)
+    expect(screen.getByPlaceholderText(/search nodes/i)).toBeDefined()
+  })
+
+  it('shows "Type to search" hint when query is empty', () => {
+    render(<SearchModal open onClose={vi.fn()} />)
+    expect(screen.getByText(/type to search/i)).toBeDefined()
+  })
+
+  it('shows no results message when query has no matches', () => {
+    useCanvasStore.setState({ nodes: [makeNode('router', { label: 'Router' })] })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'zzz' } })
+    expect(screen.getByText(/no nodes match/i)).toBeDefined()
+  })
+
+  it('filters nodes by label', () => {
+    useCanvasStore.setState({
+      nodes: [makeNode('n1', { label: 'My Router' }), makeNode('n2', { label: 'NAS Server' })],
+    })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'router' } })
+    expect(screen.getByText('My Router')).toBeDefined()
+    expect(screen.queryByText('NAS Server')).toBeNull()
+  })
+
+  it('filters nodes by IP', () => {
+    useCanvasStore.setState({
+      nodes: [
+        makeNode('n1', { label: 'Box A', ip: '192.168.1.10' }),
+        makeNode('n2', { label: 'Box B', ip: '10.0.0.1' }),
+      ],
+    })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: '192.168' } })
+    expect(screen.getByText('Box A')).toBeDefined()
+    expect(screen.queryByText('Box B')).toBeNull()
+  })
+
+  it('filters nodes by hostname', () => {
+    useCanvasStore.setState({
+      nodes: [
+        makeNode('n1', { label: 'A', hostname: 'pve.local' }),
+        makeNode('n2', { label: 'B', hostname: 'nas.local' }),
+      ],
+    })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'pve' } })
+    expect(screen.getByText('A')).toBeDefined()
+    expect(screen.queryByText('B')).toBeNull()
+  })
+
+  it('excludes groupRect nodes from results', () => {
+    useCanvasStore.setState({
+      nodes: [
+        makeNode('n1', { label: 'Server', type: 'server' }),
+        makeNode('g1', { label: 'Zone A', type: 'groupRect' }),
+      ],
+    })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'zone' } })
+    expect(screen.getByText(/no nodes match/i)).toBeDefined()
+  })
+
+  it('limits results to 8 nodes', () => {
+    useCanvasStore.setState({
+      nodes: Array.from({ length: 12 }, (_, i) => makeNode(`n${i}`, { label: `Server ${i}` })),
+    })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'server' } })
+    const items = screen.getAllByText(/Server \d/)
+    expect(items).toHaveLength(8)
+  })
+
+  it('selects node and closes on result click', () => {
+    const onClose = vi.fn()
+    useCanvasStore.setState({ nodes: [makeNode('n1', { label: 'Proxmox' })] })
+    render(<SearchModal open onClose={onClose} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'prox' } })
+    fireEvent.click(screen.getByText('Proxmox'))
+    expect(useCanvasStore.getState().selectedNodeId).toBe('n1')
+    expect(mockFitView).toHaveBeenCalledWith(expect.objectContaining({ nodes: [{ id: 'n1' }] }))
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('selects first result and closes on Enter key', () => {
+    const onClose = vi.fn()
+    useCanvasStore.setState({ nodes: [makeNode('n1', { label: 'Switch' })] })
+    render(<SearchModal open onClose={onClose} />)
+    const input = screen.getByPlaceholderText(/search nodes/i)
+    fireEvent.change(input, { target: { value: 'switch' } })
+    fireEvent.keyDown(input, { key: 'Enter' })
+    expect(useCanvasStore.getState().selectedNodeId).toBe('n1')
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('closes on Escape key', () => {
+    const onClose = vi.fn()
+    render(<SearchModal open onClose={onClose} />)
+    fireEvent.keyDown(screen.getByPlaceholderText(/search nodes/i), { key: 'Escape' })
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('closes when clicking backdrop', () => {
+    const onClose = vi.fn()
+    render(<SearchModal open onClose={onClose} />)
+    // The backdrop is the fixed inset div — clicking it fires onClose
+    const backdrop = document.querySelector('.fixed.inset-0') as HTMLElement
+    fireEvent.click(backdrop)
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('does not close when clicking inside the search box', () => {
+    const onClose = vi.fn()
+    render(<SearchModal open onClose={onClose} />)
+    fireEvent.click(screen.getByPlaceholderText(/search nodes/i))
+    expect(onClose).not.toHaveBeenCalled()
+  })
+
+  it('search is case-insensitive', () => {
+    useCanvasStore.setState({ nodes: [makeNode('n1', { label: 'My NAS' })] })
+    render(<SearchModal open onClose={vi.fn()} />)
+    fireEvent.change(screen.getByPlaceholderText(/search nodes/i), { target: { value: 'MY NAS' } })
+    expect(screen.getByText('My NAS')).toBeDefined()
+  })
+})

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

@@ -0,0 +1,97 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import { ThemeModal } from '../ThemeModal'
+import { useThemeStore } from '@/stores/themeStore'
+import { useCanvasStore } from '@/stores/canvasStore'
+import { THEME_ORDER } from '@/utils/themes'
+
+vi.mock('sonner', () => ({ toast: { success: vi.fn(), error: vi.fn(), info: vi.fn() } }))
+import { toast } from 'sonner'
+
+describe('ThemeModal', () => {
+  beforeEach(() => {
+    useThemeStore.setState({ activeTheme: 'default' })
+    useCanvasStore.setState({ hasUnsavedChanges: false })
+    vi.mocked(toast.info).mockReset()
+  })
+
+  it('renders nothing when closed', () => {
+    const { container } = render(<ThemeModal open={false} onClose={vi.fn()} />)
+    expect(container.querySelector('[role="dialog"]')).toBeNull()
+  })
+
+  it('renders all available themes', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    // Every theme in THEME_ORDER should have a card rendered
+    expect(THEME_ORDER.length).toBeGreaterThan(0)
+    // At minimum the dialog title should be present
+    expect(screen.getByText('Choose Canvas Style')).toBeDefined()
+  })
+
+  it('shows Apply Style button', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    expect(screen.getByRole('button', { name: 'Apply Style' })).toBeDefined()
+  })
+
+  it('shows Cancel button', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    expect(screen.getByRole('button', { name: 'Cancel' })).toBeDefined()
+  })
+
+  it('live-previews theme when a card is clicked', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    const initialTheme = useThemeStore.getState().activeTheme
+    // Click a different theme card (find by button role, pick a non-default one)
+    const cards = screen.getAllByRole('button').filter((b) =>
+      b.className.includes('rounded-xl')
+    )
+    // Click the second card (first non-selected)
+    fireEvent.click(cards[1])
+    // Theme should have changed for live preview
+    expect(useThemeStore.getState().activeTheme).not.toBe(initialTheme)
+  })
+
+  it('Apply sets theme, marks unsaved, and closes', () => {
+    const onClose = vi.fn()
+    render(<ThemeModal open onClose={onClose} />)
+    // Click a non-default card first
+    const cards = screen.getAllByRole('button').filter((b) => b.className.includes('rounded-xl'))
+    fireEvent.click(cards[1])
+    const previewTheme = useThemeStore.getState().activeTheme
+    fireEvent.click(screen.getByRole('button', { name: 'Apply Style' }))
+    expect(useThemeStore.getState().activeTheme).toBe(previewTheme)
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('Apply shows toast asking user to save canvas', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    fireEvent.click(screen.getByRole('button', { name: 'Apply Style' }))
+    expect(toast.info).toHaveBeenCalledWith(
+      expect.stringContaining('save'),
+      expect.any(Object)
+    )
+  })
+
+  it('Cancel reverts to original theme and closes', () => {
+    const onClose = vi.fn()
+    useThemeStore.setState({ activeTheme: 'default' })
+    render(<ThemeModal open onClose={onClose} />)
+    // Preview a different theme
+    const cards = screen.getAllByRole('button').filter((b) => b.className.includes('rounded-xl'))
+    fireEvent.click(cards[1])
+    expect(useThemeStore.getState().activeTheme).not.toBe('default')
+    // Cancel should revert
+    fireEvent.click(screen.getByRole('button', { name: 'Cancel' }))
+    expect(useThemeStore.getState().activeTheme).toBe('default')
+    expect(onClose).toHaveBeenCalledOnce()
+  })
+
+  it('Cancel does not mark canvas as unsaved', () => {
+    render(<ThemeModal open onClose={vi.fn()} />)
+    const cards = screen.getAllByRole('button').filter((b) => b.className.includes('rounded-xl'))
+    fireEvent.click(cards[1])
+    fireEvent.click(screen.getByRole('button', { name: 'Cancel' }))
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+})

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

@@ -328,4 +328,40 @@ describe('canvasStore', () => {
     useCanvasStore.getState().pasteNodes()
     expect(useCanvasStore.getState().nodes).toHaveLength(1)
   })
+
+  // --- Node resizing (width / height) ---
+
+  it('addNode preserves explicit width and height', () => {
+    const node: Node<NodeData> = { ...makeNode('n1'), width: 280, height: 120 }
+    useCanvasStore.getState().addNode(node)
+    const stored = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(stored?.width).toBe(280)
+    expect(stored?.height).toBe(120)
+  })
+
+  it('onNodesChange dimensions change updates width and height', () => {
+    useCanvasStore.getState().addNode(makeNode('n1'))
+    useCanvasStore.getState().markSaved()
+    useCanvasStore.getState().onNodesChange([
+      { type: 'dimensions', id: 'n1', dimensions: { width: 320, height: 180 }, resizing: true },
+    ])
+    const node = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(node?.measured?.width ?? node?.width).toBeDefined()
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(true)
+  })
+
+  it('loadCanvas preserves width and height on resized nodes', () => {
+    const resized: Node<NodeData> = { ...makeNode('n1'), width: 300, height: 160 }
+    useCanvasStore.getState().loadCanvas([resized], [])
+    const stored = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(stored?.width).toBe(300)
+    expect(stored?.height).toBe(160)
+  })
+
+  it('loadCanvas preserves undefined width/height for default-sized nodes', () => {
+    useCanvasStore.getState().loadCanvas([makeNode('n1')], [])
+    const stored = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(stored?.width).toBeUndefined()
+    expect(stored?.height).toBeUndefined()
+  })
 })

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

@@ -0,0 +1,384 @@
+import { describe, it, expect } from 'vitest'
+import type { Node, Edge } from '@xyflow/react'
+import type { NodeData, EdgeData } from '@/types'
+import {
+  serializeNode,
+  serializeEdge,
+  deserializeApiNode,
+  deserializeApiEdge,
+  type ApiNode,
+  type ApiEdge,
+} from '@/utils/canvasSerializer'
+
+// ── Helpers ──────────────────────────────────────────────────────────────────
+
+function makeRfNode(overrides: Partial<Node<NodeData>> = {}): Node<NodeData> {
+  return {
+    id: 'n1',
+    type: 'server',
+    position: { x: 100, y: 200 },
+    data: {
+      label: 'My Server',
+      type: 'server',
+      status: 'online',
+      services: [],
+    },
+    ...overrides,
+  }
+}
+
+function makeApiNode(overrides: Partial<ApiNode> = {}): ApiNode {
+  return {
+    id: 'n1',
+    type: 'server',
+    label: 'My Server',
+    pos_x: 100,
+    pos_y: 200,
+    status: 'online',
+    services: [],
+    ...overrides,
+  }
+}
+
+function makeRfEdge(overrides: Partial<Edge<EdgeData>> = {}): Edge<EdgeData> {
+  return {
+    id: 'e1',
+    source: 'n1',
+    target: 'n2',
+    type: 'ethernet',
+    data: { type: 'ethernet' },
+    ...overrides,
+  }
+}
+
+function makeApiEdge(overrides: Partial<ApiEdge> = {}): ApiEdge {
+  return {
+    id: 'e1',
+    source: 'n1',
+    target: 'n2',
+    type: 'ethernet',
+    ...overrides,
+  }
+}
+
+// ── serializeNode — regular nodes ────────────────────────────────────────────
+
+describe('serializeNode — regular node', () => {
+  it('maps position to pos_x/pos_y', () => {
+    const result = serializeNode(makeRfNode({ position: { x: 42, y: 99 } }))
+    expect(result.pos_x).toBe(42)
+    expect(result.pos_y).toBe(99)
+  })
+
+  it('includes all data fields', () => {
+    const node = makeRfNode({
+      data: {
+        label: 'Router', type: 'router', status: 'online', services: [],
+        hostname: 'gw.local', ip: '192.168.1.1', mac: 'aa:bb:cc:dd:ee:ff',
+        os: 'OpenWRT', check_method: 'ping', check_target: '192.168.1.1',
+        notes: 'main router',
+      },
+    })
+    const result = serializeNode(node)
+    expect(result.hostname).toBe('gw.local')
+    expect(result.ip).toBe('192.168.1.1')
+    expect(result.mac).toBe('aa:bb:cc:dd:ee:ff')
+    expect(result.os).toBe('OpenWRT')
+    expect(result.check_method).toBe('ping')
+    expect(result.check_target).toBe('192.168.1.1')
+    expect(result.notes).toBe('main router')
+  })
+
+  it('serializes width and height when node has been resized', () => {
+    const node = makeRfNode({ width: 280, height: 120 })
+    const result = serializeNode(node)
+    expect(result.width).toBe(280)
+    expect(result.height).toBe(120)
+  })
+
+  it('serializes width/height as null when node has default size', () => {
+    const result = serializeNode(makeRfNode())
+    expect(result.width).toBeNull()
+    expect(result.height).toBeNull()
+  })
+
+  it('serializes hardware fields', () => {
+    const node = makeRfNode({
+      data: {
+        label: 'Server', type: 'server', status: 'online', services: [],
+        cpu_count: 8, cpu_model: 'Intel i7', ram_gb: 32, disk_gb: 500, show_hardware: true,
+      },
+    })
+    const result = serializeNode(node)
+    expect(result.cpu_count).toBe(8)
+    expect(result.cpu_model).toBe('Intel i7')
+    expect(result.ram_gb).toBe(32)
+    expect(result.disk_gb).toBe(500)
+    expect(result.show_hardware).toBe(true)
+  })
+
+  it('serializes custom_colors', () => {
+    const node = makeRfNode({ data: { label: 'S', type: 'server', status: 'unknown', services: [], custom_colors: { border: '#ff0000' } } })
+    const result = serializeNode(node)
+    expect(result.custom_colors).toEqual({ border: '#ff0000' })
+  })
+
+  it('serializes parent_id and container_mode', () => {
+    const node = makeRfNode({ data: { label: 'VM', type: 'vm', status: 'unknown', services: [], parent_id: 'px1', container_mode: false } })
+    const result = serializeNode(node)
+    expect(result.parent_id).toBe('px1')
+    expect(result.container_mode).toBe(false)
+  })
+
+  it('nulls optional fields when absent', () => {
+    const result = serializeNode(makeRfNode())
+    expect(result.hostname).toBeNull()
+    expect(result.ip).toBeNull()
+    expect(result.mac).toBeNull()
+    expect(result.os).toBeNull()
+    expect(result.check_method).toBeNull()
+    expect(result.check_target).toBeNull()
+    expect(result.notes).toBeNull()
+    expect(result.parent_id).toBeNull()
+    expect(result.cpu_count).toBeNull()
+    expect(result.cpu_model).toBeNull()
+    expect(result.ram_gb).toBeNull()
+    expect(result.disk_gb).toBeNull()
+  })
+})
+
+// ── serializeNode — groupRect ─────────────────────────────────────────────────
+
+describe('serializeNode — groupRect', () => {
+  it('stores dimensions inside custom_colors', () => {
+    const node = makeRfNode({
+      type: 'groupRect',
+      data: { label: 'Zone A', type: 'groupRect', status: 'unknown', services: [] },
+      width: 400,
+      height: 250,
+    })
+    const result = serializeNode(node)
+    expect((result.custom_colors as Record<string, unknown>).width).toBe(400)
+    expect((result.custom_colors as Record<string, unknown>).height).toBe(250)
+  })
+
+  it('falls back to measured dimensions over explicit width/height', () => {
+    const node: Node<NodeData> = {
+      ...makeRfNode({ type: 'groupRect', data: { label: 'Z', type: 'groupRect', status: 'unknown', services: [] }, width: 400 }),
+      measured: { width: 420, height: 260 },
+    }
+    const result = serializeNode(node)
+    expect((result.custom_colors as Record<string, unknown>).width).toBe(420)
+    expect((result.custom_colors as Record<string, unknown>).height).toBe(260)
+  })
+
+  it('falls back to defaults when no dimensions available', () => {
+    const node = makeRfNode({ type: 'groupRect', data: { label: 'Z', type: 'groupRect', status: 'unknown', services: [] } })
+    const result = serializeNode(node)
+    expect((result.custom_colors as Record<string, unknown>).width).toBe(360)
+    expect((result.custom_colors as Record<string, unknown>).height).toBe(240)
+  })
+
+  it('preserves existing custom_colors fields alongside dimensions', () => {
+    const node = makeRfNode({
+      type: 'groupRect',
+      data: { label: 'Z', type: 'groupRect', status: 'unknown', services: [], custom_colors: { border: '#aaa', z_order: 2 } },
+      width: 300, height: 200,
+    })
+    const result = serializeNode(node)
+    const cc = result.custom_colors as Record<string, unknown>
+    expect(cc.border).toBe('#aaa')
+    expect(cc.z_order).toBe(2)
+    expect(cc.width).toBe(300)
+    expect(cc.height).toBe(200)
+  })
+})
+
+// ── serializeEdge ─────────────────────────────────────────────────────────────
+
+describe('serializeEdge', () => {
+  it('serializes basic fields', () => {
+    const result = serializeEdge(makeRfEdge())
+    expect(result.id).toBe('e1')
+    expect(result.source).toBe('n1')
+    expect(result.target).toBe('n2')
+    expect(result.type).toBe('ethernet')
+  })
+
+  it('normalizes top-t handle to top', () => {
+    const result = serializeEdge(makeRfEdge({ sourceHandle: 'top-t', targetHandle: 'bottom-t' }))
+    expect(result.source_handle).toBe('top')
+    expect(result.target_handle).toBe('bottom')
+  })
+
+  it('passes through non-stub handles unchanged', () => {
+    const result = serializeEdge(makeRfEdge({ sourceHandle: 'cluster-right', targetHandle: 'cluster-left' }))
+    expect(result.source_handle).toBe('cluster-right')
+    expect(result.target_handle).toBe('cluster-left')
+  })
+
+  it('serializes optional edge data', () => {
+    const edge = makeRfEdge({ data: { type: 'vlan', label: 'uplink', vlan_id: 10, custom_color: '#ff0', path_style: 'smooth', animated: true } })
+    const result = serializeEdge(edge)
+    expect(result.label).toBe('uplink')
+    expect(result.vlan_id).toBe(10)
+    expect(result.custom_color).toBe('#ff0')
+    expect(result.path_style).toBe('smooth')
+    expect(result.animated).toBe(true)
+  })
+
+  it('nulls optional fields when absent', () => {
+    const result = serializeEdge(makeRfEdge({ sourceHandle: undefined, targetHandle: undefined }))
+    expect(result.source_handle).toBeNull()
+    expect(result.target_handle).toBeNull()
+    expect(result.label).toBeNull()
+    expect(result.vlan_id).toBeNull()
+    expect(result.custom_color).toBeNull()
+    expect(result.path_style).toBeNull()
+  })
+})
+
+// ── deserializeApiNode — regular nodes ───────────────────────────────────────
+
+describe('deserializeApiNode — regular node', () => {
+  const emptyMap = new Map<string, boolean>()
+
+  it('maps pos_x/pos_y to position', () => {
+    const result = deserializeApiNode(makeApiNode({ pos_x: 50, pos_y: 75 }), emptyMap)
+    expect(result.position).toEqual({ x: 50, y: 75 })
+  })
+
+  it('restores width and height when node was resized', () => {
+    const result = deserializeApiNode(makeApiNode({ width: 280, height: 120 }), emptyMap)
+    expect(result.width).toBe(280)
+    expect(result.height).toBe(120)
+  })
+
+  it('leaves width/height undefined for default-sized nodes', () => {
+    const result = deserializeApiNode(makeApiNode(), emptyMap)
+    expect(result.width).toBeUndefined()
+    expect(result.height).toBeUndefined()
+  })
+
+  it('sets parentId and extent for children of container proxmox', () => {
+    const map = new Map([['px1', true]])
+    const result = deserializeApiNode(makeApiNode({ parent_id: 'px1' }), map)
+    expect(result.parentId).toBe('px1')
+    expect(result.extent).toBe('parent')
+  })
+
+  it('does not set parentId when parent is not in container mode', () => {
+    const map = new Map([['px1', false]])
+    const result = deserializeApiNode(makeApiNode({ parent_id: 'px1' }), map)
+    expect(result.parentId).toBeUndefined()
+  })
+
+  it('sets proxmox dimensions using saved values', () => {
+    const result = deserializeApiNode(
+      makeApiNode({ type: 'proxmox', container_mode: true, width: 450, height: 300 }),
+      emptyMap,
+    )
+    expect(result.width).toBe(450)
+    expect(result.height).toBe(300)
+  })
+
+  it('falls back to 300x200 for proxmox container with no saved dimensions', () => {
+    const result = deserializeApiNode(makeApiNode({ type: 'proxmox', container_mode: true }), emptyMap)
+    expect(result.width).toBe(300)
+    expect(result.height).toBe(200)
+  })
+
+  it('does not set dimensions for non-container proxmox', () => {
+    const result = deserializeApiNode(makeApiNode({ type: 'proxmox', container_mode: false }), emptyMap)
+    expect(result.width).toBeUndefined()
+    expect(result.height).toBeUndefined()
+  })
+})
+
+// ── deserializeApiNode — groupRect ────────────────────────────────────────────
+
+describe('deserializeApiNode — groupRect', () => {
+  const emptyMap = new Map<string, boolean>()
+
+  it('restores width/height from custom_colors', () => {
+    const result = deserializeApiNode(
+      makeApiNode({ type: 'groupRect', custom_colors: { width: 400, height: 250, z_order: 2 } }),
+      emptyMap,
+    )
+    expect(result.width).toBe(400)
+    expect(result.height).toBe(250)
+    expect(result.zIndex).toBe(-8)
+  })
+
+  it('defaults to 360x240 when custom_colors has no dimensions', () => {
+    const result = deserializeApiNode(makeApiNode({ type: 'groupRect' }), emptyMap)
+    expect(result.width).toBe(360)
+    expect(result.height).toBe(240)
+  })
+})
+
+// ── deserializeApiEdge ────────────────────────────────────────────────────────
+
+describe('deserializeApiEdge', () => {
+  it('maps source_handle/target_handle to sourceHandle/targetHandle', () => {
+    const result = deserializeApiEdge(makeApiEdge({ source_handle: 'top', target_handle: 'bottom' }))
+    expect(result.sourceHandle).toBe('top')
+    expect(result.targetHandle).toBe('bottom')
+  })
+
+  it('sets sourceHandle/targetHandle to null when absent', () => {
+    const result = deserializeApiEdge(makeApiEdge())
+    expect(result.sourceHandle).toBeNull()
+    expect(result.targetHandle).toBeNull()
+  })
+
+  it('preserves id, source, target, type', () => {
+    const result = deserializeApiEdge(makeApiEdge({ id: 'e99', source: 'a', target: 'b', type: 'wifi' }))
+    expect(result.id).toBe('e99')
+    expect(result.source).toBe('a')
+    expect(result.target).toBe('b')
+    expect(result.type).toBe('wifi')
+  })
+})
+
+// ── Round-trip ────────────────────────────────────────────────────────────────
+
+describe('round-trip: serialize → deserialize', () => {
+  const emptyMap = new Map<string, boolean>()
+
+  it('preserves position through serialize/deserialize', () => {
+    const node = makeRfNode({ position: { x: 123, y: 456 } })
+    const serialized = serializeNode(node) as ApiNode
+    const restored = deserializeApiNode(serialized, emptyMap)
+    expect(restored.position).toEqual({ x: 123, y: 456 })
+  })
+
+  it('preserves width/height through serialize/deserialize', () => {
+    const node = makeRfNode({ width: 300, height: 160 })
+    const serialized = serializeNode(node) as ApiNode
+    const restored = deserializeApiNode(serialized, emptyMap)
+    expect(restored.width).toBe(300)
+    expect(restored.height).toBe(160)
+  })
+
+  it('preserves null width/height for default-sized nodes', () => {
+    const node = makeRfNode()
+    const serialized = serializeNode(node) as ApiNode
+    const restored = deserializeApiNode(serialized, emptyMap)
+    expect(restored.width).toBeUndefined()
+    expect(restored.height).toBeUndefined()
+  })
+
+  it('preserves groupRect dimensions through serialize/deserialize', () => {
+    const node = makeRfNode({
+      type: 'groupRect',
+      data: { label: 'Z', type: 'groupRect', status: 'unknown', services: [] },
+      width: 500,
+      height: 300,
+    })
+    const serialized = serializeNode(node) as ApiNode
+    const restored = deserializeApiNode(serialized, emptyMap)
+    expect(restored.width).toBe(500)
+    expect(restored.height).toBe(300)
+  })
+})

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

@@ -0,0 +1,196 @@
+/**
+ * Standalone mode save/load tests.
+ *
+ * In standalone mode (VITE_STANDALONE=true) the canvas is persisted directly
+ * to localStorage as JSON — no backend involved. The full RF node object is
+ * serialized as-is, which means width/height survive the round-trip without
+ * going through serializeNode / deserializeApiNode.
+ *
+ * These tests verify that critical node properties (especially width/height
+ * added for resizable nodes) are not lost through the localStorage cycle, and
+ * that the demo data is structurally valid.
+ */
+
+import { describe, it, expect, beforeEach } from 'vitest'
+import type { Node, Edge } from '@xyflow/react'
+import type { NodeData, EdgeData } from '@/types'
+import { useCanvasStore } from '@/stores/canvasStore'
+import { demoNodes, demoEdges } from '@/utils/demoData'
+
+const STORAGE_KEY = 'homelable_canvas'
+
+// Simulates what App.tsx does on Ctrl+S in standalone mode
+function standaloneSerialize(nodes: Node<NodeData>[], edges: Edge<EdgeData>[], theme_id = 'default') {
+  return JSON.stringify({ nodes, edges, theme_id })
+}
+
+// Simulates what App.tsx does on load in standalone mode
+function standaloneDeserialize(raw: string) {
+  return JSON.parse(raw) as { nodes: Node<NodeData>[]; edges: Edge<EdgeData>[]; theme_id: string }
+}
+
+function makeNode(id: string, overrides: Partial<Node<NodeData>> = {}): Node<NodeData> {
+  return {
+    id,
+    type: 'server',
+    position: { x: 0, y: 0 },
+    data: { label: id, type: 'server', status: 'unknown', services: [] },
+    ...overrides,
+  }
+}
+
+describe('Standalone localStorage save/load cycle', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    useCanvasStore.setState({ nodes: [], edges: [], hasUnsavedChanges: false })
+  })
+
+  // ── width / height round-trip ─────────────────────────────────────────────
+
+  it('preserves width and height for resized nodes', () => {
+    const nodes = [makeNode('n1', { width: 320, height: 180 })]
+    const raw = standaloneSerialize(nodes, [])
+    localStorage.setItem(STORAGE_KEY, raw)
+
+    const { nodes: loaded } = standaloneDeserialize(localStorage.getItem(STORAGE_KEY)!)
+    useCanvasStore.getState().loadCanvas(loaded, [])
+
+    const stored = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(stored?.width).toBe(320)
+    expect(stored?.height).toBe(180)
+  })
+
+  it('preserves undefined width/height for default-sized nodes', () => {
+    const nodes = [makeNode('n1')]
+    const raw = standaloneSerialize(nodes, [])
+    const { nodes: loaded } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas(loaded, [])
+
+    const stored = useCanvasStore.getState().nodes.find((n) => n.id === 'n1')
+    expect(stored?.width).toBeUndefined()
+    expect(stored?.height).toBeUndefined()
+  })
+
+  it('preserves mixed: some nodes resized, others not', () => {
+    const nodes = [
+      makeNode('n1', { width: 280, height: 120 }),
+      makeNode('n2'),
+    ]
+    const raw = standaloneSerialize(nodes, [])
+    const { nodes: loaded } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas(loaded, [])
+
+    const { nodes: stored } = useCanvasStore.getState()
+    expect(stored.find((n) => n.id === 'n1')?.width).toBe(280)
+    expect(stored.find((n) => n.id === 'n2')?.width).toBeUndefined()
+  })
+
+  // ── other node properties ─────────────────────────────────────────────────
+
+  it('preserves position through the round-trip', () => {
+    const nodes = [makeNode('n1', { position: { x: 123, y: 456 } })]
+    const raw = standaloneSerialize(nodes, [])
+    const { nodes: loaded } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas(loaded, [])
+
+    expect(useCanvasStore.getState().nodes[0].position).toEqual({ x: 123, y: 456 })
+  })
+
+  it('preserves node data fields through the round-trip', () => {
+    const nodes = [makeNode('n1', {
+      data: {
+        label: 'My Router', type: 'router', status: 'online', services: [],
+        ip: '192.168.1.1', hostname: 'gw.local',
+      },
+    })]
+    const raw = standaloneSerialize(nodes, [])
+    const { nodes: loaded } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas(loaded, [])
+
+    const stored = useCanvasStore.getState().nodes[0]
+    expect(stored.data.label).toBe('My Router')
+    expect(stored.data.ip).toBe('192.168.1.1')
+    expect(stored.data.hostname).toBe('gw.local')
+    expect(stored.data.status).toBe('online')
+  })
+
+  it('preserves theme_id through the round-trip', () => {
+    const raw = standaloneSerialize([], [], 'cyberpunk')
+    const { theme_id } = standaloneDeserialize(raw)
+    expect(theme_id).toBe('cyberpunk')
+  })
+
+  it('preserves edge data through the round-trip', () => {
+    const edges: Edge<EdgeData>[] = [{
+      id: 'e1', source: 'n1', target: 'n2', type: 'vlan',
+      data: { type: 'vlan', vlan_id: 20, label: 'VLAN 20' },
+    }]
+    const raw = standaloneSerialize([], edges)
+    const { edges: loaded } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas([], loaded)
+
+    const stored = useCanvasStore.getState().edges[0]
+    expect(stored.data?.vlan_id).toBe(20)
+    expect(stored.data?.label).toBe('VLAN 20')
+  })
+
+  // ── loadCanvas marks clean ────────────────────────────────────────────────
+
+  it('loadCanvas sets hasUnsavedChanges to false', () => {
+    useCanvasStore.setState({ hasUnsavedChanges: true })
+    const { nodes: loaded } = standaloneDeserialize(standaloneSerialize([makeNode('n1')], []))
+    useCanvasStore.getState().loadCanvas(loaded, [])
+    expect(useCanvasStore.getState().hasUnsavedChanges).toBe(false)
+  })
+})
+
+// ── Demo data validation ──────────────────────────────────────────────────────
+
+describe('Demo data (standalone fallback)', () => {
+  it('all demo nodes have required fields', () => {
+    for (const n of demoNodes) {
+      expect(n.id, `${n.id} missing id`).toBeTruthy()
+      expect(n.type, `${n.id} missing type`).toBeTruthy()
+      expect(n.position, `${n.id} missing position`).toBeDefined()
+      expect(n.data.label, `${n.id} missing label`).toBeTruthy()
+      expect(n.data.type, `${n.id} missing data.type`).toBeTruthy()
+      expect(n.data.status, `${n.id} missing status`).toBeTruthy()
+      expect(Array.isArray(n.data.services), `${n.id} services must be array`).toBe(true)
+    }
+  })
+
+  it('demo nodes have no explicit width/height — render at natural size', () => {
+    for (const n of demoNodes) {
+      expect(n.width, `${n.id} should not have explicit width`).toBeUndefined()
+      expect(n.height, `${n.id} should not have explicit height`).toBeUndefined()
+    }
+  })
+
+  it('all demo edges reference valid node ids', () => {
+    const nodeIds = new Set(demoNodes.map((n) => n.id))
+    for (const e of demoEdges) {
+      expect(nodeIds.has(e.source), `edge ${e.id} source '${e.source}' not in nodes`).toBe(true)
+      expect(nodeIds.has(e.target), `edge ${e.id} target '${e.target}' not in nodes`).toBe(true)
+    }
+  })
+
+  it('demo data loads into store without errors', () => {
+    useCanvasStore.getState().loadCanvas(demoNodes, demoEdges)
+    const { nodes, edges } = useCanvasStore.getState()
+    expect(nodes).toHaveLength(demoNodes.length)
+    expect(edges).toHaveLength(demoEdges.length)
+  })
+
+  it('demo data round-trips through standalone JSON serialization', () => {
+    const raw = standaloneSerialize(demoNodes, demoEdges)
+    const { nodes: loaded, edges: loadedEdges } = standaloneDeserialize(raw)
+    useCanvasStore.getState().loadCanvas(loaded, loadedEdges)
+
+    const { nodes, edges } = useCanvasStore.getState()
+    expect(nodes).toHaveLength(demoNodes.length)
+    expect(edges).toHaveLength(demoEdges.length)
+    // Positions intact
+    const router = nodes.find((n) => n.id === 'router-1')!
+    expect(router.position).toEqual({ x: 300, y: 140 })
+  })
+})

frontend/src/utils/canvasSerializer.ts

@@ -0,0 +1,172 @@
+import type { Node, Edge } from '@xyflow/react'
+import type { NodeData, EdgeData } from '@/types'
+
+// ── Types ────────────────────────────────────────────────────────────────────
+
+export interface ApiNode extends Record<string, unknown> {
+  id: string
+  type: string
+  label: string
+  pos_x: number
+  pos_y: number
+  status: string
+  services: unknown[]
+  hostname?: string | null
+  ip?: string | null
+  mac?: string | null
+  os?: string | null
+  check_method?: string | null
+  check_target?: string | null
+  notes?: string | null
+  parent_id?: string | null
+  container_mode?: boolean
+  custom_colors?: Record<string, unknown> | null
+  custom_icon?: string | null
+  cpu_count?: number | null
+  cpu_model?: string | null
+  ram_gb?: number | null
+  disk_gb?: number | null
+  show_hardware?: boolean
+  width?: number | null
+  height?: number | null
+}
+
+export interface ApiEdge {
+  id: string
+  source: string
+  target: string
+  type: string
+  label?: string | null
+  vlan_id?: number | null
+  speed?: string | null
+  custom_color?: string | null
+  path_style?: string | null
+  animated?: boolean
+  source_handle?: string | null
+  target_handle?: string | null
+}
+
+// ── Serialization (RF node → API save payload) ───────────────────────────────
+
+export function serializeNode(n: Node<NodeData>): Record<string, unknown> {
+  if (n.data.type === 'groupRect') {
+    return {
+      id: n.id,
+      type: 'groupRect',
+      label: n.data.label,
+      hostname: null,
+      ip: null,
+      mac: null,
+      os: null,
+      status: 'unknown',
+      check_method: null,
+      check_target: null,
+      services: [],
+      notes: null,
+      parent_id: null,
+      container_mode: false,
+      custom_icon: null,
+      pos_x: n.position.x,
+      pos_y: n.position.y,
+      custom_colors: {
+        ...n.data.custom_colors,
+        width: n.measured?.width ?? n.width ?? 360,
+        height: n.measured?.height ?? n.height ?? 240,
+      },
+    }
+  }
+  return {
+    id: n.id,
+    type: n.data.type,
+    label: n.data.label,
+    hostname: n.data.hostname ?? null,
+    ip: n.data.ip ?? null,
+    mac: n.data.mac ?? null,
+    os: n.data.os ?? null,
+    status: n.data.status,
+    check_method: n.data.check_method ?? null,
+    check_target: n.data.check_target ?? null,
+    services: n.data.services ?? [],
+    notes: n.data.notes ?? null,
+    parent_id: n.data.parent_id ?? null,
+    container_mode: n.data.container_mode ?? false,
+    custom_colors: n.data.custom_colors ?? null,
+    custom_icon: n.data.custom_icon ?? null,
+    cpu_count: n.data.cpu_count ?? null,
+    cpu_model: n.data.cpu_model ?? null,
+    ram_gb: n.data.ram_gb ?? null,
+    disk_gb: n.data.disk_gb ?? null,
+    show_hardware: n.data.show_hardware ?? false,
+    width: n.width ?? null,
+    height: n.height ?? null,
+    pos_x: n.position.x,
+    pos_y: n.position.y,
+  }
+}
+
+const normalizeHandle = (h: string | null | undefined): string | null =>
+  h === 'top-t' ? 'top' : h === 'bottom-t' ? 'bottom' : (h ?? null)
+
+export function serializeEdge(e: Edge<EdgeData>): Record<string, unknown> {
+  return {
+    id: e.id,
+    source: e.source,
+    target: e.target,
+    type: e.data?.type ?? 'ethernet',
+    label: e.data?.label ?? null,
+    vlan_id: e.data?.vlan_id ?? null,
+    speed: e.data?.speed ?? null,
+    custom_color: e.data?.custom_color ?? null,
+    path_style: e.data?.path_style ?? null,
+    animated: e.data?.animated ?? false,
+    source_handle: normalizeHandle(e.sourceHandle),
+    target_handle: normalizeHandle(e.targetHandle),
+  }
+}
+
+// ── Deserialization (API response → RF node/edge) ────────────────────────────
+
+export function deserializeApiNode(
+  n: ApiNode,
+  proxmoxContainerMap: Map<string, boolean>,
+): Node<NodeData> {
+  if (n.type === 'groupRect') {
+    const w = (n.custom_colors?.width as number | undefined) ?? 360
+    const h = (n.custom_colors?.height as number | undefined) ?? 240
+    const z = (n.custom_colors?.z_order as number | undefined) ?? 1
+    return {
+      id: n.id,
+      type: 'groupRect',
+      position: { x: n.pos_x, y: n.pos_y },
+      data: n as unknown as NodeData,
+      width: w,
+      height: h,
+      zIndex: z - 10,
+    }
+  }
+  const parentIsContainer = n.parent_id ? (proxmoxContainerMap.get(n.parent_id) ?? false) : false
+  return {
+    id: n.id,
+    type: n.type,
+    position: { x: n.pos_x, y: n.pos_y },
+    data: n as unknown as NodeData,
+    ...(n.parent_id && parentIsContainer ? { parentId: n.parent_id, extent: 'parent' as const } : {}),
+    ...(n.type === 'proxmox' && n.container_mode !== false
+      ? { width: n.width ?? 300, height: n.height ?? 200 }
+      : {}),
+    ...(n.width && n.type !== 'proxmox' ? { width: n.width } : {}),
+    ...(n.height && n.type !== 'proxmox' ? { height: n.height } : {}),
+  }
+}
+
+export function deserializeApiEdge(e: ApiEdge): Edge<EdgeData> {
+  return {
+    id: e.id,
+    source: e.source,
+    target: e.target,
+    type: e.type,
+    sourceHandle: e.source_handle ?? null,
+    targetHandle: e.target_handle ?? null,
+    data: e as unknown as EdgeData,
+  }
+}

scripts/install-proxmox.sh

@@ -115,7 +115,7 @@ for i in $(seq 1 20); do
 done
 
 # ── Grant NET_RAW for nmap (ping-based checks) ─────────────────────────────────
-echo "lxc.cap.keep = net_raw net_bind_service" >> /etc/pve/lxc/${CTID}.conf 2>/dev/null || true
+echo "lxc.cap.keep = net_raw net_bind_service" >> "/etc/pve/lxc/${CTID}.conf" 2>/dev/null || true
 
 # ── Bootstrap curl then run the installer ─────────────────────────────────────
 step "Running Homelable installer inside container $CTID..."

scripts/lxc-install.sh

@@ -10,7 +10,6 @@ INSTALL_DIR=/opt/homelable
 DATA_DIR=/opt/homelable/data
 SERVICE_USER=homelable
 REPO_URL="https://github.com/Pouzor/homelable.git"
-RAW="https://raw.githubusercontent.com/Pouzor/homelable/main"
 
 RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'; NC='\033[0m'
 info()  { echo -e "${GREEN}[homelable]${NC} $*"; }
@@ -20,7 +19,12 @@ error() { echo -e "${RED}[homelable]${NC} $*"; exit 1; }
 [[ $EUID -ne 0 ]] && error "Run as root (sudo bash ...)"
 
 # ── Detect OS ─────────────────────────────────────────────────────────────────
-[[ -f /etc/os-release ]] && . /etc/os-release || error "Cannot detect OS"
+if [[ -f /etc/os-release ]]; then
+  # shellcheck source=/dev/null
+  . /etc/os-release
+else
+  error "Cannot detect OS"
+fi
 info "Detected: $PRETTY_NAME"
 [[ "$ID" =~ ^(debian|ubuntu)$ ]] || error "Requires Debian or Ubuntu"
 
@@ -118,7 +122,8 @@ sed \
 
 ln -sf /etc/nginx/sites-available/homelable /etc/nginx/sites-enabled/homelable
 rm -f /etc/nginx/sites-enabled/default
-nginx -t && systemctl reload nginx || systemctl start nginx
+nginx -t
+systemctl reload nginx || systemctl start nginx
 
 # ── Enable & start ────────────────────────────────────────────────────────────
 systemctl daemon-reload