fix(zigbee): default IEEE/Vendor/Model/LQI props to hidden, preserve user visibility

- New zigbee props (approve + first-time re-import) ship with visible=false
  so the canvas card stays clean. User opts in from the right panel.
- On re-import of an already-approved node, merge instead of overwrite:
  keys already present keep their visible flag (and any user-edited value
  is replaced with the freshly imported one), brand-new keys are appended
  hidden. Non-zigbee custom properties are preserved untouched.

backend/app/api/routes/zigbee.py

@@ -23,7 +23,12 @@ from app.schemas.zigbee import (
     ZigbeeTestConnectionRequest,
     ZigbeeTestConnectionResponse,
 )
-from app.services.zigbee_service import build_zigbee_properties, fetch_networkmap, test_mqtt_connection
+from app.services.zigbee_service import (
+    build_zigbee_properties,
+    fetch_networkmap,
+    merge_zigbee_properties,
+    test_mqtt_connection,
+)
 
 logger = logging.getLogger(__name__)
 router = APIRouter()
@@ -150,7 +155,9 @@ async def _persist_pending_import(
             existing = await db.execute(select(Node).where(Node.ieee_address == ieee))
             existing_node = existing.scalar_one_or_none()
             if existing_node:
-                existing_node.properties = props
+                existing_node.properties = merge_zigbee_properties(
+                    existing_node.properties, props
+                )
                 coordinator_out = ZigbeeCoordinatorOut(
                     id=existing_node.id,
                     label=existing_node.label,
@@ -183,7 +190,9 @@ async def _persist_pending_import(
         )
         existing_node = existing_node_q.scalar_one_or_none()
         if existing_node:
-            existing_node.properties = props
+            existing_node.properties = merge_zigbee_properties(
+                existing_node.properties, props
+            )
             continue
 
         result = await db.execute(

backend/app/services/zigbee_service.py

@@ -68,19 +68,44 @@ def build_zigbee_properties(
 
     Only includes a row when the value is non-empty. Shape matches the
     frontend ``NodeProperty`` type: ``{key, value, icon, visible}``.
+
+    New props default to ``visible=False`` — users opt in to showing them on
+    the canvas card from the right panel.
     """
     props: list[dict[str, Any]] = []
     if ieee:
-        props.append({"key": "IEEE", "value": ieee, "icon": None, "visible": True})
+        props.append({"key": "IEEE", "value": ieee, "icon": None, "visible": False})
     if vendor:
-        props.append({"key": "Vendor", "value": vendor, "icon": None, "visible": True})
+        props.append({"key": "Vendor", "value": vendor, "icon": None, "visible": False})
     if model:
-        props.append({"key": "Model", "value": model, "icon": None, "visible": True})
+        props.append({"key": "Model", "value": model, "icon": None, "visible": False})
     if lqi is not None:
-        props.append({"key": "LQI", "value": str(lqi), "icon": None, "visible": True})
+        props.append({"key": "LQI", "value": str(lqi), "icon": None, "visible": False})
     return props
 
 
+def merge_zigbee_properties(
+    existing: list[dict[str, Any]] | None,
+    new_props: list[dict[str, Any]],
+) -> list[dict[str, Any]]:
+    """Merge fresh zigbee props into an existing property list.
+
+    For keys already present: update ``value`` but preserve the user's
+    ``visible`` choice. New keys are appended with whatever visibility the
+    caller gave them (hidden by default per ``build_zigbee_properties``).
+    Non-zigbee custom properties are preserved untouched.
+    """
+    out = [dict(p) for p in (existing or [])]
+    by_key = {p.get("key"): p for p in out}
+    for np in new_props:
+        key = np.get("key")
+        if key in by_key:
+            by_key[key]["value"] = np.get("value")
+        else:
+            out.append(dict(np))
+    return out
+
+
 def _z2m_type_to_homelable(device_type: str) -> str:
     """Map a Z2M device type string to a homelable node type."""
     mapping = {

backend/tests/test_zigbee_router.py

@@ -407,6 +407,8 @@ async def test_persist_pending_import_sets_coordinator_properties(db_session) ->
     ).scalar_one()
     keys = {p["key"]: p["value"] for p in coord.properties}
     assert keys == {"IEEE": "0xCOORD", "Vendor": "TI", "Model": "CC2652"}
+    # New zigbee props default to hidden — user opts in from the right panel.
+    assert all(p["visible"] is False for p in coord.properties)
 
 
 @pytest.mark.asyncio
@@ -453,6 +455,53 @@ async def test_persist_pending_import_skips_pending_for_approved_node(
     ).scalar_one()
     keys = {p["key"]: p["value"] for p in refreshed.properties}
     assert keys == {"IEEE": "0xR1", "Vendor": "TI", "Model": "CC2530", "LQI": "250"}
+    # Brand-new props on an existing Node start hidden.
+    assert all(p["visible"] is False for p in refreshed.properties)
+
+
+@pytest.mark.asyncio
+async def test_persist_pending_import_preserves_user_visibility(db_session) -> None:
+    """If user has already made props visible, re-import must not flip them back."""
+    from sqlalchemy import select
+
+    from app.api.routes.zigbee import _persist_pending_import
+    from app.db.models import Node
+
+    approved = Node(
+        label="router_1",
+        type="zigbee_router",
+        status="online",
+        check_method="none",
+        ieee_address="0xR1",
+        services=[],
+        properties=[
+            {"key": "IEEE", "value": "0xR1", "icon": None, "visible": True},
+            {"key": "Vendor", "value": "TI", "icon": None, "visible": True},
+            {"key": "Custom", "value": "kept", "icon": None, "visible": True},
+        ],
+    )
+    db_session.add(approved)
+    await db_session.commit()
+
+    bumped = [dict(n) for n in _PENDING_NODES]
+    bumped[1]["lqi"] = 99
+    bumped[1]["model"] = "CC2530"
+    await _persist_pending_import(db_session, bumped, _PENDING_EDGES)
+
+    refreshed = (
+        await db_session.execute(select(Node).where(Node.ieee_address == "0xR1"))
+    ).scalar_one()
+    by_key = {p["key"]: p for p in refreshed.properties}
+    # Existing keys keep their visibility (True).
+    assert by_key["IEEE"]["visible"] is True
+    assert by_key["Vendor"]["visible"] is True
+    # New key arrives hidden.
+    assert by_key["Model"]["visible"] is False
+    assert by_key["LQI"]["visible"] is False
+    assert by_key["LQI"]["value"] == "99"
+    # Non-zigbee user-added prop is preserved untouched.
+    assert by_key["Custom"]["value"] == "kept"
+    assert by_key["Custom"]["visible"] is True
 
 
 @pytest.mark.asyncio
@@ -477,6 +526,10 @@ async def test_persist_pending_import_refreshes_existing_coordinator_properties(
     keys = {p["key"]: p["value"] for p in coord.properties}
     assert keys["Vendor"] == "TI"
     assert keys["Model"] == "CC2652"
+    # Newly added keys on re-import default to hidden.
+    by_key = {p["key"]: p for p in coord.properties}
+    assert by_key["Vendor"]["visible"] is False
+    assert by_key["Model"]["visible"] is False
 
 
 @pytest.mark.asyncio

frontend/src/utils/zigbeeProperties.ts

@@ -15,9 +15,9 @@ export function buildZigbeeProperties(input: {
   lqi?: number | null
 }): NodeProperty[] {
   const props: NodeProperty[] = []
-  if (input.ieee_address) props.push({ key: 'IEEE', value: input.ieee_address, icon: null, visible: true })
+  if (input.ieee_address) props.push({ key: 'IEEE', value: input.ieee_address, icon: null, visible: false })
-  if (input.vendor) props.push({ key: 'Vendor', value: input.vendor, icon: null, visible: true })
+  if (input.vendor) props.push({ key: 'Vendor', value: input.vendor, icon: null, visible: false })
-  if (input.model) props.push({ key: 'Model', value: input.model, icon: null, visible: true })
+  if (input.model) props.push({ key: 'Model', value: input.model, icon: null, visible: false })
-  if (input.lqi != null) props.push({ key: 'LQI', value: String(input.lqi), icon: null, visible: true })
+  if (input.lqi != null) props.push({ key: 'LQI', value: String(input.lqi), icon: null, visible: false })
   return props
 }