home-assistant: its directories are placed, and it runs the build in use

The module stated /services/home-assistant/config and bound its route under
/var/lib/mesh — novox's layout, a path no definition may carry (ADR 0112).
The config dir and the module's state are now placed (${dir:config},
${dir:state}); the route binds into ${dir:state}.

The sidecar no longer mounts Home Assistant's config dir: nothing reads
MESH_HOMEASSISTANT_CONFIG_DIR, and the mount handed it the auth store and
secrets.yaml for nothing. The config dir loses owner 1000:1000 — the image
runs as root, the uid was the predecessor's host-user convention.

Two more listens that the software opens by default and LAN devices dial in
on, which a converged filter would otherwise close: 1400 (Sonos event
callback) and 18555 (bundled go2rtc WebRTC). Host network, so the machine
port is the software's.

Image pinned to the 2026.9.3 build ace's predecessor runs (2026-09-18);
Home Assistant migrates its recorder schema, so older than running is unsafe.

Verified: catalogue tests pass with MESH_CATALOGUE on this tree; the pinned
image boots on a fresh root-owned 0700 config dir (manifest 200, API 401
without a token), and refuses X-Forwarded-For from an untrusted proxy (400).

modules/home-assistant/module.json

@@ -18,7 +18,21 @@
       "port": 8123,
       "protocol": "tcp",
       "from": "mesh",
-      "why": "the dashboard and the API"
+      "why": "the dashboard, the API and the companion apps"
+    },
+    {
+      "name": "sonos-events",
+      "port": 1400,
+      "protocol": "tcp",
+      "from": "mesh",
+      "why": "the Sonos integration's event callback: speakers push their state changes here"
+    },
+    {
+      "name": "webrtc",
+      "port": 18555,
+      "protocol": "tcp",
+      "from": "mesh",
+      "why": "the bundled go2rtc's WebRTC port, which camera streams to a browser use"
     }
   ],
   "resources": [
@@ -28,24 +42,28 @@
       "path": "/var/lib/mesh/home-assistant",
       "mode": "0700"
     },
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "place": "."
+    },
     {
       "id": "config",
       "type": "directory",
-      "path": "/services/home-assistant/config",
-      "mode": "0700",
-      "owner": "1000:1000"
+      "mode": "0700"
     },
     {
       "id": "server",
       "type": "container",
       "name": "home-assistant",
-      "image": "ghcr.io/home-assistant/home-assistant@sha256:14931c6b13756317849f46da1d01b45937a1150db66c081cfe529d48215943fe",
+      "image": "ghcr.io/home-assistant/home-assistant@sha256:d8922685169707fd91e8b9729902d975f06157d005e422874d201e0261dda196",
       "network": "host",
       "env": {
         "TZ": "Etc/UTC"
       },
       "volumes": [
-        "/services/home-assistant/config:/config"
+        "${dir:config}:/config"
       ]
     },
     {
@@ -64,15 +82,13 @@
       "volumes": [
         "/var/lib/mesh/home-assistant/broker:/run/secrets/broker:ro",
         "/var/lib/mesh/home-assistant/token:/run/secrets/token:ro",
-        "/var/lib/mesh/home-assistant/config.json:/run/config/config.json:ro",
-        "/services/home-assistant/config:/var/lib/home-assistant/config:ro"
+        "/var/lib/mesh/home-assistant/config.json:/run/config/config.json:ro"
       ],
       "env": {
         "MESH_BROKER_FILE": "/run/secrets/broker",
         "MESH_HOMEASSISTANT_URL": "http://127.0.0.1:8123",
         "MESH_HOMEASSISTANT_TOKEN_FILE": "/run/secrets/token",
-        "MESH_HOMEASSISTANT_CONFIG_FILE": "/run/config/config.json",
-        "MESH_HOMEASSISTANT_CONFIG_DIR": "/var/lib/home-assistant/config"
+        "MESH_HOMEASSISTANT_CONFIG_FILE": "/run/config/config.json"
       },
       "restart-on": [
         "runtime-config"
@@ -90,7 +106,7 @@
     }
   },
   "binds": {
-    "route": "/var/lib/mesh/home-assistant/route.json"
+    "route": "${dir:state}/route.json"
   },
   "build": {
     "on": [