[hosts/hass.windy.lan.md#8DF6]
# hass.windy.lan — Home Assistant (HAOS)

## Role and access

| Item | Value |
|---|---|
| Role | Home Assistant automation hub |
| IPv4 | `192.168.55.11` (LAN55) |
| DNS | `hass.windy.lan` (AdGuard rewrite on `dns.windy.lan`; legacy `hass.local` alias) |
| SSH | `ssh hassio@hass.windy.lan` |
| **Host** | **x88 Pro physical box** (HAOS bare-metal, `machine: green`; verified 2026-08-18) |
| Platform | Home Assistant OS; kernel `6.1.115-haos` (aarch64) |
| Web UI | `http://hass.windy.lan:8123` (LAN); WAN port-forward `hass` on gw → `:8123` |

Use `hassio` for routine SSH inspection. Key-only login was verified on
2026-08-13 from the WSL client (`BatchMode=yes`).

The `ha` supervisor CLI (`/usr/bin/ha`) authenticates with `SUPERVISOR_TOKEN`.
Interactive login works because `~hassio/.zprofile` runs `exec sudo -i`, which
loads a root environment carrying the supervisor API token. Non-interactive
`ssh hassio 'command'` does not source `.zprofile` and fails with
`unauthorized: missing or invalid API token`. Run `ha` non-interactively via:

```bash
ssh -o BatchMode=yes hassio@hass.windy.lan 'sudo -n -i ha core info'
```

Verified 2026-08-13 that `sudo -n -i ha core info` works from the WSL client.
Never copy the supervisor token into this repository.

The current SSH ED25519 host-key fingerprint is
`SHA256:DMcMOgDzFsFTon1fndXowEP7jlyOK3/AX3PVK8BATvk` (verified 2026-08-13).
Verify a changed key out of band before accepting it.

Do not store Home Assistant long-lived tokens, integration credentials, or
recovery codes in this repository.

## Network

| Interface | Address / role |
|---|---|
| `end0` | IPv4 static `192.168.55.11/24` (gw `.254`, DNS `192.168.66.36`); IPv6 SLAAC `auto` with GUA on the current PD-derived /64 (`240e:3bd:235:1fb2:*` at 2026-08-22; rotates on PPPoE redial); primary LAN55 NIC (interface name verified live 2026-08-22 — `end1` does not exist) |
| `wlan0` | Supervisor **disabled** (verified 2026-08-14, W1N-104); IPv6 remains off on this RTL8821CS radio |
| `wg0` | `10.13.13.2/32`; WireGuard (add-on / integration tunnel) |
| `hassio` / `docker0` | internal HAOS Docker bridges (`172.30.32.0/23`, `172.30.232.0/23`) |

LAN55 clients reach the HTTP API on `dns.windy.lan:80` for the AdGuard Home
integration; see [hosts/dns.windy.lan.md](dns.windy.lan.md).

## API access

Home Assistant exposes a REST API at `http://hass.windy.lan:8123/api/` (same
as `http://192.168.55.11:8123/api/`). Authenticate with a **long-lived access
token** created under **Profile → Security → Long-lived access tokens**.

```bash
HA_URL="http://hass.windy.lan:8123"
HA_TOKEN="<long-lived-access-token>"

# Health check — expect {"message":"API running."} and HTTP:200
curl -sS -w "\nHTTP:%{http_code}\n" \
  -H "Authorization: Bearer $HA_TOKEN" "$HA_URL/api/"

# Read one entity state
curl -sS -H "Authorization: Bearer $HA_TOKEN" \
  "$HA_URL/api/states/sensor.csg_30d_max"

# List entities / recent errors
curl -sS -H "Authorization: Bearer $HA_TOKEN" "$HA_URL/api/states"
curl -sS -H "Authorization: Bearer $HA_TOKEN" "$HA_URL/api/error_log"
```

- `401` → token invalid or expired; create a new one.
- `404` on `/api/states/<id>` → entity does not exist.
- The token is a secret: never commit it here; keep it in the shell
  environment or a secrets file outside the repo.

### HTTP proxy gotcha (verified 2026-08-13)

The WSL client had `http_proxy` set to Mihomo (`192.168.66.99:7890`). LAN
hostnames sent **through that proxy** returned empty `502`, even though DNS
resolved and the HA UI was up. Direct `192.168.55.11:8123` worked, and
`hass.windy.lan:8123` worked only after clearing the HTTP proxy.

Before debugging a "502" on a LAN URL, check `env | grep -i proxy` and bypass
the proxy:

```bash
unset http_proxy HTTP_PROXY all_proxy ALL_PROXY
curl -sS -w "\nHTTP:%{http_code}\n" \
  -H "Authorization: Bearer $HA_TOKEN" "$HA_URL/api/"
```

For a persistent fix, add `.windy.lan` (leading dot) and the LAN ranges to
`NO_PROXY`, or add `*.windy.lan` to the proxy's own bypass/skip-proxy list.
See `~/.config/zsh/env/local/environment.env` for the client-side setting.

## Safe verification

```bash
ssh -o BatchMode=yes hassio@hass.windy.lan 'hostname; ip -4 addr show end0'
```

From a LAN client, confirm DNS and UI reachability:

```bash
getent hosts hass.windy.lan
# expect 192.168.55.11
```

## Local patches (custom components)


### Manual custom-component install (this host)

Home Assistant loads custom integrations from
`<config>/custom_components/<domain>/` (HAOS: `/config` ≡ `/homeassistant`).
A folder named after the integration domain, containing at least
`manifest.json` and `__init__.py`, is enough; Core must be restarted after
copying files. Official HA lookup order:
`<config>/custom_components/<domain>` then built-in
`homeassistant/components/<domain>`.
See [Integration file structure](https://developers.home-assistant.io/docs/creating_integration_file_structure).

This host **does not git-clone** custom components. The live tree is a file
copy. Do not `git pull` on HA.

**Official plugin path** (from
[windyboy/china_southern_power_grid_stat README](https://github.com/windyboy/china_southern_power_grid_stat)):
HACS **or** [手动下载安装](https://github.com/windyboy/china_southern_power_grid_stat/releases).
This host uses the latter. Releases here have no uploaded zip assets; use
GitHub's **Source code (zip)** / zipball of the tag.

**UI (Samba / File editor / Studio Code Server):**

1. Download Source code (zip) from the GitHub Release.
2. Extract. Copy only the inner
   `custom_components/china_southern_power_grid_stat/` tree — not the repo
   root, not a nested extra folder.
3. Place it at `/config/custom_components/china_southern_power_grid_stat/`.
4. Restart Core (**Settings → System → Restart**).
5. First install only: **Settings → Devices & services → Add integration**.

**SSH from the workstation** (verified 2026-08-14, W1N-107). Replace `v1.3.1`
with the tag being installed:

```bash
TAG=v1.3.1
STAGE=/tmp/csg-${TAG}-deploy
mkdir -p "$STAGE"
gh api "repos/windyboy/china_southern_power_grid_stat/zipball/${TAG}" \
  > "$STAGE/src.zip"
unzip -q "$STAGE/src.zip" -d "$STAGE"
SRC=$(find "$STAGE" -type d -path '*/custom_components/china_southern_power_grid_stat' | head -1)
# expect .../custom_components/china_southern_power_grid_stat

ssh -o BatchMode=yes hassio@hass.windy.lan \
  'sudo -n -i mkdir -p /homeassistant/.csg-backups &&
   sudo -n -i cp -a /homeassistant/custom_components/china_southern_power_grid_stat \
     /homeassistant/.csg-backups/china_southern_power_grid_stat.bak-$(date +%Y%m%d)-manual'

rsync -a --delete \
  -e 'ssh -o BatchMode=yes' \
  "$SRC/" \
  hassio@hass.windy.lan:/homeassistant/custom_components/china_southern_power_grid_stat/

# --delete cannot remove Core-owned __pycache__; wipe as root, then restart
ssh -o BatchMode=yes hassio@hass.windy.lan \
  'sudo -n -i rm -rf /homeassistant/custom_components/china_southern_power_grid_stat/__pycache__ \
     /homeassistant/custom_components/china_southern_power_grid_stat/*/__pycache__ &&
   sudo -n -i ha core restart'
```

Wait until Core is up (`ha core info` returns, typically 1–2 min; this CLI
build does not print a `state:` field).
Then:

```bash
ssh -o BatchMode=yes hassio@hass.windy.lan \
  'sudo -n -i cat /homeassistant/custom_components/china_southern_power_grid_stat/manifest.json'
# version must match the tag

ssh -o BatchMode=yes hassio@hass.windy.lan \
  'sudo -n -i ha core logs -n 2500' | grep -E 'china_southern_power_grid_stat|cannot pickle' || true
```

**Host constraints (do not skip):**

- Backups **must** live in `/homeassistant/.csg-backups/`. A `*.bak-*`
  directory next to the live folder is scanned as the same domain and Core
  fails with `No module named '...bak-YYYYMMDD-...'`.
- Do not install this fork via HACS on this host. HACS still tracks
  `CubicPill/china_southern_power_grid_stat` `v1.2.0`; a HACS update would
  overwrite the live copy.
- First poll after restart can time out to CSG over IPv4; if this-month
  sensors stay `unknown` while last-month filled, reload the config entry
  (UI: integration → Reload, or supervisor
  `POST /core/api/config/config_entries/entry/<id>/reload`).
- `runbooks/scripts/ha-maintenance.sh --restart-core --yes` can print
  nothing and exit 1 in under a second **without restarting Core**. The
  wrapper's ssh line discards stderr (`2>/dev/null`); with `pipefail`,
  an ssh failure yields empty stdout + exit 1 before any remote command
  runs. Do not treat that as a completed restart. Confirm with elapsed
  time (~2 min for a real restart) and `ha core info`. Prefer
  `ssh -o BatchMode=yes hassio@hass.windy.lan 'sudo -n -i ha core restart'`.

Full command family: [runbooks/home-assistant-maintenance.md](../runbooks/home-assistant-maintenance.md).

### `china_southern_power_grid_stat` live tree

**v1.3.2** (`934f58c`, verified 2026-08-15, W1N-118): manual zipball of
GitHub release
[v1.3.2](https://github.com/windyboy/china_southern_power_grid_stat/releases/tag/v1.3.2)
copied to `/config/custom_components/china_southern_power_grid_stat`.
Earlier trees: v1.3.1/`55a293fc` (W1N-107), v1.3.0/`69f13c90` (W1N-106),
`a433e8c` (W1N-105), `de01914` (W1N-103), `eb8b174` (W1N-102). Backups:
`/homeassistant/.csg-backups/` (w1n102/104/105/106/107/118).

v1.3.0 crashed the coordinator on first refresh
(`TypeError: cannot pickle 'mappingproxy' object` in
`copy.deepcopy(self._config)` under Python 3.14 / HA 2026.8.1). v1.3.1
wraps those `deepcopy` calls with `dict(...)`. Post-restart 22:13 CST:
entry `loaded`, no pickle traceback. Native this-month sensors filled after
reloading entry `01KGCQDSZCF523A9X6SV3BZ1B9` (`ip_family: ipv4`). Native
cost/ladder sensors can stay `unknown` because CSG
`get_month_daily_cost_detail` returns a marketing-system SQL error; the
dashboard uses template ladder/cost entities instead. Do not change
`templates/csg_sensors.yaml` or the 电力监控 dashboard for an install.

Home PPPoE IPv4 to CSG is still blackholed (`curl -4` to `218.19.148.218:443`
times out). `end0` IPv6 is enabled (`ipv6.method: auto`); from HA,
`curl -6 https://95598.csg.cn` returns HTTP 200 via `240e:f9:8060::1:16`.

**`tianqi` weather recorder patch (verified 2026-08-13, W1N-75):**
`/config/custom_components/tianqi/weather.py` has a local patch adding
`_unrecorded_attributes = frozenset({"hourly_temperature", "hourly_skycon",
"hourly_cloudrate", "hourly_precipitation"})` to the `WeatherEntity` class.
Without it, weather.guangzhou's state attributes (~19 KB, dominated by the 4
hourly_* arrays of up to 48 entries) exceed the recorder 16384-byte limit, so
the recorder drops **all** attributes for the entity and logs
`Recorder.db_schema: State attributes for weather.guangzhou exceed maximum
size of 16384 bytes`. The patch excludes only the 4 arrays from recording
(live state unchanged; other attributes still stored; ~6.3 KB payload). Backup
at `weather.py.bak-w1n75`. **Re-apply after any `tianqi` component update.**
The `_unrecorded_attributes` mechanism exists in Core 2026.8.1
(`Entity.__init_subclass__` → `state_info["unrecorded_attributes"]`, consumed
by recorder `shared_attrs_bytes_from_event`).


### `matrix_e2ee` live tree (E2E Matrix bot, verified 2026-08-20)

**v0.3.12** (tag `v0.3.12`; feat — Matrix activity events
`matrix_e2ee_message_received` / `matrix_e2ee_verification_done` + push
diagnostics; v0.3.9 added Connection health binary sensor, SAS/command
allowlist split, URL normalization, single-entry enforcement):
source copy from `/home/windy/project/ha-matrix-e2ee` `ea421ed` (tag
`v0.3.12`) deployed 2026-08-20 via SSH rsync from workstation (upgraded
from v0.3.2, backup `matrix_e2ee.bak-20260820-v0.3.2`).
Custom **`matrix_e2ee`** integration — **Config Flow** (UI). See
[docs/home-assistant-matrix.md](../docs/home-assistant-matrix.md).
**Update runbook:** [runbooks/matrix-e2ee-update.md](../runbooks/matrix-e2ee-update.md).

Earlier: v0.3.2 (tag `v0.3.2`, W1N-182/#34: wizard waits for inbound SAS
emojis) deployed 2026-08-18 from `d35c484` (backup
`matrix_e2ee.bak-20260818-v0.3.1`); v0.3.1 (GitHub #33: peer-initiated
verification wizard fix) deployed 2026-08-18 from `d22e935` (backup
`matrix_e2ee.bak-20260818-v0.3.0`); v0.3.0 (W1N-180/#32: bot-initiated
verification wizard; W1N-179/#31 `receive_mac_event` cancel-state fix)
deployed 2026-08-18 from `216cc99` (backup
`matrix_e2ee.bak-20260818-v0.2.10`).

- Bot `@hass:chans.xyz` reused (E2EE device `rO1R915ncu`). Config Entry
  `01M04D7C1M4T2GX5VPG7NVQ7GV` (`source: import`, `state: loaded`). All
  settings via **Settings → Devices & Services → Matrix E2EE → Configure**.
- Config Entry options: `allowed_rooms` `["!gidvAzpDzwtzfEDrqu:chans.xyz", "!boxfylDSzOvrWkcsyY:chans.xyz"]`,
  `allowed_users` `["@zhiqiang:chans.xyz"]`, `command_prefix` `"!"`.
  **`verification_peer_users` not set** (v0.3.9+ SAS allowlist split from
  `allowed_users`, W1N-156): defaults to empty → only the bot's own account
  may drive SAS; `@zhiqiang` is denied until the option is added via
  Settings → Devices & Services → Matrix E2EE → Configure.
- Storage: `/config/.storage/matrix_e2ee_session.json` +
  `/config/.storage/matrix_e2ee_store/`. Backups:
  `/homeassistant/.matrix-e2ee-backups/` (incl. `matrix_e2ee.bak-20260820-v0.3.2`,
  `matrix_e2ee.bak-20260818-v0.3.1`,
  `matrix_e2ee.bak-20260818-v0.3.0`,
  `matrix_e2ee.bak-20260818-v0.2.10`,
  `matrix_e2ee.bak-20260816-v0.2.9`, `matrix_e2ee.bak-20260816-v0.2.8`);
  full HA backup slugs `3d9d36db` (pre-v0.1.4) + `9f223f35` (pre-v0.2.0).
- v0.3.12: Matrix activity events + push diagnostics
  (`matrix_e2ee_message_received` / `matrix_e2ee_verification_done`).
  v0.3.9: Connection health binary sensor (W1N-185/#40), config-entry
  diagnostics (W1N-184/#39), SAS/command allowlist split
  `verification_peer_users` (W1N-156/#41), SAS/sync logs demoted
  warning→info/debug (W1N-188/#38), URL normalization + single-entry
  enforcement (W1N-190/#42).
  v0.3.8: `m.key.verification.done` handshake for request-based SAS
  (W1N-183/#35).
  v0.3.2: wizard waits for inbound SAS emojis before the compare step
  (W1N-182/#34).
  v0.3.1: verification wizard waits for a peer-initiated inbound SAS instead
  of the bot starting SAS (GitHub #33).
  v0.3.0: bot-initiated device verification wizard (W1N-180/#32).
  v0.2.11: `receive_mac_event` no longer overrides canceled state (W1N-179/#31).
- v0.2.9: restore SAS emoji rendering after vodozemac migration (W1N-175/#29).
  v0.2.8: SAS commitment unpadded base64 for Element interop (W1N-174/#28).
  v0.2.7: SAS cancel code/reason logging. v0.2.6: verification state logging +
  request→ready bridge. v0.2.4: `_patch_nio_sas_timeout()` +
  `_repair_dropped_start()`; `VERIFICATION_TIMEOUT_SECONDS` 600→240.
- Automation `1761188403590`「Matrix 聊天关卫生间灯」: trigger
  `matrix_e2ee_command` (command `关卫生间灯`), actions `light.turn_off` +
  `matrix_e2ee.send_message` (room `!gidvAzpDzwtzfEDrqu`).
- **SAS not yet completed:** every device requires explicit `confirm_verification`.
  Encrypted-room commands stay fail-closed until `@zhiqiang`'s device is verified.
  Since v0.3.9 the SAS driver gate uses `verification_peer_users` (empty on
  this host) instead of `allowed_users` — add `@zhiqiang:chans.xyz` there
  before retrying the wizard. Three paths available: SAS manual confirm,
  fingerprint, or the device verification wizard (v0.3.0 bot-initiated,
  reworked in v0.3.1/v0.3.2 to wait for a peer-initiated inbound SAS from
  Element with emoji comparison), see
  [docs/home-assistant-matrix.md § Device verification](../docs/home-assistant-matrix.md).
### Scribe long-term history (verified 2026-08-29)

- **Scribe 3.8.0** (`/homeassistant/custom_components/scribe/`), configured from
  `configuration.yaml` (`scribe:` block; config entry
  `01KC2VFJWEQ3XDHY6TQKHPDVRB`, `source: import` — UI "Configure → Advanced"
  edits are overridden by the YAML on restart; treat YAML as authoritative).
- TimescaleDB at `192.168.55.15:5432/scribe` (DB user `hass`; host in inventory,
  see [hosts/pgdb.md](../hosts/pgdb.md)). Database re-initialized 2026-08-29 14:06 CST
  (user-handled; earlier `relation "entities" does not exist` errors resolved).
  Health: `binary_sensor.scribe_database_connection`.
- 2026-08-29 config applied (backup `/homeassistant/configuration.yaml.bak-20260829-scribe`):
  - `record_events: true` with `include_events` whitelist: `automation_triggered`,
    `matrix_e2ee_command`, `matrix_e2ee_message_received`,
    `matrix_e2ee_verification_done`, `script_started`, `tag_scanned`,
    `mobile_app_notification_action`, `homeassistant_start`, `homeassistant_stop`.
  - State noise trimmed: `exclude_domains` update/button; glob
    `sensor.zigbee2mqtt_bridge_*`; 4 hassio cpu/mem-percent entities.
  - Global `exclude_attributes` drops tianqi `hourly_*` arrays (~19 KB/state —
    the recorder-side `_unrecorded_attributes` patch does not apply to Scribe).
  - `enable_stats_io` + `enable_stats_size` on → 14 `sensor.scribe_*` stats
    entities (`scribe_states_written`, `scribe_events_written`, rates, sizes).
  - Verified post-restart 14:23 CST: writer started, `scribe_events_written=1`
    (homeassistant_start), states ~110/min, buffer 3, no scribe log errors.
- **Scribe 3.8.0 has no retention option.** Retention ships only in the v4.x line,
  which as of 2026-08-29 has no stable release (v4.0.0rc1/v4.1.0rc1 are
  prereleases; user declined RCs — data keeps growing until an upgrade). v4.x is
  a major rewrite (writer.py largely rewritten, migration.py removed, TimescaleDB
  extension required): re-read release notes before upgrading. Do not expect
  retention YAML keys to validate on 3.8.0.
- Recorder stays external-Postgres with `purge_keep_days: 30` for daily UI
  history; Scribe is the permanent archive.

### Timescale Plotly card + database reader (verified 2026-08-29)

Chart stack over the Scribe TimescaleDB archive. Upstream pair (no HACS;
manual copies): reader `remmob/timescale_database_reader` **v1.1.0** (main
`bb8776a`) + card `remmob/timescale-plotly-card` **2.2.0** (main `217961d`).

- **Reader integration**: `/homeassistant/custom_components/timescale_database_reader/`.
  Config entry `01M165P77QT1FQEAVPNZHDT82W` ("Scribe", `source: user`): connects
  `hass@192.168.55.15:5432/scribe` (credentials = `secrets.yaml` `scribe_url`),
  `table: sensor_minute`. Exposes no entities/services — it serves WS command
  `timescale/query` (window ≤ 365 d, ≤ 50 000 rows, `downsample` bucket seconds).
  Benign startup warning `Error executing test query: column "time" does not
  exist`: the self-test SQL assumes the LTSS column name; the scribe table uses
  `minute` — real queries work (verified: 70 rows for a live power sensor).
- **Card**: `/homeassistant/www/community/timescale-plotly-card/timescale-plotly-card.js`
  (root-owned, same convention as HACS dirs). Lovelace resource (storage)
  id `2e360d17b5aa4ce59c2fd13c43b51215` →
  `/hacsfiles/timescale-plotly-card/timescale-plotly-card.js`, type `module`.
  Card config matches the entry by `database: scribe` (name from the reader
  entry). Updates: replace the file, resource URL unchanged — browsers need a
  hard refresh or a bumped `?v=` query on the resource URL.
- **pgdb side** (`sensor_minute_aggregate` cagg + `sensor_minute` hypertable +
  every-minute refresh job): see [hosts/pgdb.md](pgdb.md) § Databases.
- **Agent-side HA WebSocket without a long-lived token** (verified 2026-08-29):
  connect `ws://supervisor/core/websocket` with header
  `Authorization: Bearer $SUPERVISOR_TOKEN`, then send
  `{"type":"auth","access_token":"$SUPERVISOR_TOKEN"}` — the Supervisor proxy
  swaps it for a core token (works as the internal Supervisor admin user). Note
  `lovelace/resources/create` in HA 2026.8 takes `res_type` (NOT
  `resource_type`).
- Scribe stores numeric sensor values in `states_raw.value` with `state` NULL,
  so `sensor_minute.state` shows `'0'` for numeric sensors; the card plots
  `avg_state` (from `value`) — expected, not a bug.
- **Quick 仪表盘（`dashboard-quick`）图表套件**（2026-08-29，经 WS
  `lovelace/config/save` 写入）：5 张 timescale 卡——大功率电器/常驻负载
  功率（按量级拆两张图，避免 1100 W 尖峰压扁 <70 W 基线）、按插座用电量
  （`energy_mode` + cumulative/diff，数据质量前提见 pgdb 的 refresh 过程补丁）、
  室内外温湿度（温度左轴/湿度右轴，4 位置同色配对）、人体感应活动状态
  （3 个 `motion_state`，banded `state_map` none/small/medium/large → 0-11）。
  布局：全部分区显式 `column_span: 4`（视图 `type: sections` + `max_columns: 4`），
  灯区 4 张控制卡横排一行。**分区/卡片是两套尺寸键，不可混用**：
  分区宽 = `column_span`（`hui-sections-view.ts` 缺省按 1 列渲染，绝不省略）；
  卡片宽 = `grid_options: {columns: <n|"full">}`（`hui-card.ts` 只读
  `config.grid_options`，写在卡片上的 `column_span` 被静默忽略；缺省 12 列，
  分区内格 = 12 × 分区 span，故 span-4 分区里缺省卡片只有 1/4 宽）。另外
  图表卡固定外壳（标题/时间按钮/状态行 ≈125px）使整卡最低 ~300px，与矮
  控制区并排必然留白，故不做半宽并排。
  修改前备份：`/homeassistant/.lovelace-backups/dashboard-quick-*.json`。

## Known issues

**Bluetooth hci0 instability — RTL8821CS (verified 2026-08-13, W1N-74):**
The local Bluetooth controller hci0 is an **RTL8821CS** combo chip on the
x88 Pro board. Kernel logs show recurring `hci0: hardware error 0x00`,
`Opcode 0x200c tx timeout` (HCI_LE_Set_Scan_Parameters), `Unable to disable
scanning: -110`, `Peer device has reset` — the chip hardware-stalls during
active scanning. HA's `bluetooth_auto_recovery` power-cycle then times out
after 5 s and retries every ~2 min:
`bluetooth_auto_recovery.recover: Could not reset the power state of the
Bluetooth adapter hci0 ... due to timeout after 5 seconds`. The HAOS image
already ships custom systemd units to cope (`x88-bt-hci-recovery.service` and
a "Patch HA Bluetooth scanner mode for x88 RTL8821CS" service, visible in host
journal). **No user impact:** there are **no BLE entities** in HA
(xiaomi_ble / bthome / led_ble / bluetooth / esphome domains are all empty;
platforms merely load from stray advertisements). Real IoT devices are Zigbee
(via Zigbee2MQTT) or WiFi/MQTT/cloud. An ESPHome Bluetooth-proxy ESP32
(`/config/esphome/bluetooth.yaml`, bluetooth_proxy: active, WiFi `ubnt-haas`)
is configured but currently offline (ESPHome add-on stopped, port 6053
unreachable) and produced no entities. Follow-up (optional): disable the
local adapter and rely on the ESPHome proxy, or stop the bluetooth
integration entirely.

**eMMC disk lifetime 10% (verified 2026-08-13, W1N-76):** `ha host info`
reports `disk_life_time: 10` — the boot eMMC (`/dev/mmcblk2`, CJTD4R
`0xacacc064`, 64 GB) has ~10% life left. `disk_free: 40.2/56.4 GB`. Full
backup `pre-maintenance-20260813` (slug `411a4ba5`, 144.26 MB) taken
2026-08-13 covers current config; monitor `disk_life_time` on each health
snapshot and plan a disk replacement / data-disk migration before the eMMC
fails.

## Matter Server (verified 2026-08-21)

- Add-on `core_matter_server` (`homeassistant/aarch64-addon-matter-server`) runs the Matter
  commissioner on this host (host networking; add-on container `app_core_matter_server`).
- **After the ISP PD prefix rotates (PPPoE redial), the add-on can cache a stale IPv6 GUA
  in its mDNS advertisement** — clients trying that dead address make Matter
  commissioning/connection fail. Fix: restart the add-on so it re-enumerates addresses:
  `ssh hassio@hass.windy.lan 'sudo -n -i ha apps restart core_matter_server'`
  (`ha addons restart ...` also works; "addons" is deprecated in favor of "apps").
- Verified 2026-08-21 (W1N-207): stale `240e:3bd:234:2f22:*` AAAA in mDNS removed by
  restart; advertisement now carries only current GUA `240e:3bd:235:1fb2:*` + link-local;
  CASE sessions with Aqara M3 / SmartThings hubs resumed over IPv6 link-local.

> **Open items (2026-08-21, W1N-207):** a phone on LAN55 was querying five known
> `_matter._tcp` instances of which only HA answered — the other Matter nodes are
> offline / not announcing (device-side; user to confirm power/Wi-Fi). HA's IPv6
> default route via NetworkManager was observed missing once (curl -6 intermittent,
> while ping6 and `curl -6 --noproxy` work) — not the Matter root cause; re-check
> on the next health snapshot.

Verified 2026-08-23 (read-only, W1N-207): add-on `started`, version `9.0.4`, no
update pending; current GUA `240e:3bd:238:4812:*` (PD rotated again since 08-22)
advertised correctly over v4+v6. Both ESP32-C2 bulbs now announce `_matter._tcp`
(multi-fabric, including this host's fabric `DCE86145C137AF0E`) — but they
**refuse TCP 5540 on IPv4 and IPv6**, so matter-server holds **zero established
:5540 sessions** (device-side failure mode C; no errors logged — see
[docs/matter-pairing-troubleshoot.md §8](../docs/matter-pairing-troubleshoot.md)).

## Related docs

- [runbooks/home-assistant-maintenance.md](../runbooks/home-assistant-maintenance.md) — `ha` CLI maintenance runbook + [script](../runbooks/scripts/ha-maintenance.sh); custom-component zip install is §7
- [docs/lan-overview.md](../docs/lan-overview.md) — LAN map and gw port-forward
- [hosts/dns.windy.lan.md](dns.windy.lan.md) — `hass.windy.lan` / `hass.local` rewrites