opencode/decisions.yaml, zigbee2mqtt/state.json

opencode/decisions.yaml

@@ -475,7 +475,8 @@ notes:
     integrations:
       - matter
       - thread
-    status: active
+    status: superseded
+    superseded_by: 2026-08-23-thread-outage-fix-cold-boot-google-tv-2
   - id: 2026-08-23-zbt-2-ordered-otbr-migration-plan
     date: 2026-08-23
     title: "ZBT-2 ordered: OTBR migration plan pending hardware"
@@ -496,4 +497,48 @@ notes:
     integrations:
       - matter
       - thread
+    status: superseded
+    superseded_by: 2026-08-23-zbt-2-ordered-otbr-migration-plan-2
+  - id: 2026-08-23-thread-outage-fix-cold-boot-google-tv-2
+    date: 2026-08-23
+    title: "Thread outage fix: cold-boot Google TV Streamer"
+    decision: "If Matter/Thread nodes go unavailable after network disruption: unplug+replug
+      the Google TV Streamer (Thread BR), wait ~10 min. Nodes rejoin only if cold boot
+      restores its original Thread dataset; else re-pair needed. Restarting HA/Matter
+      add-on does NOT help."
+    rationale: "2026-08-23: Bell router reboot made TV Streamer re-form Thread mesh under new
+      identity (XPAN BDE139547AD960A4 / fdbd:e139:547a:60a4); six Thread nodes stranded on
+      dead fd25:f6c0:5149 formation — silent, invisible to mDNS. Add-on restart useless;
+      cold boot restored dataset by 18:25. Google never exports credentials; permanent fix
+      = HA-hosted OTBR on own radio."
+    entities:
+      - light.bedroom_lamp
+      - light.office_lamp
+      - sensor.bedroom_switch_battery
+    integrations:
+      - matter
+      - thread
+    pin: true
+    status: active
+  - id: 2026-08-23-zbt-2-ordered-otbr-migration-plan-2
+    date: 2026-08-23
+    title: "ZBT-2 ordered: OTBR migration plan pending hardware"
+    decision: "When Home Assistant Connect ZBT-2 arrives: install OpenThread Border Router
+      add-on on it, form HA's own Thread network, then migrate the 6 Matter-over-Thread
+      devices over-the-air per device (Add Device → scan label code → Move to HA's Thread
+      Network). No factory resets expected; reset only as fallback."
+    rationale: "2026-08-23: Recurring outages because Google TV Streamer owns the Thread mesh
+      and re-forms it with fresh credentials after disruptions, stranding nodes. It never
+      exports its dataset, so no seamless import — but devices already sit in HA's Matter
+      fabric, so per-device OTA migration works without reset. Keep TV Streamer online
+      until all 6 moved, then disable its hub radio in Google Home app. End state: border
+      routers visible in HA Thread integration, router reboots harmless."
+    entities:
+      - light.bedroom_lamp
+      - light.office_lamp
+      - sensor.bedroom_switch_battery
+    integrations:
+      - matter
+      - thread
+    pin: true
     status: active