Update bot user ID and model name in configuration files; enhance outage recovery reporting

CLAUDE.md

@@ -32,11 +32,14 @@ Claude Code, then relays/acts on the agent's JSON result.
   re-probe. Kuma's root-owned `kuma.db` is read via a throwaway `keinos/sqlite3`
   container mounting the `uptime-kuma-data` volume read-only.
 - **Health loop** (5 min): down services confirmed over `down_confirmations`
-  cycles → invoke stack-support agent to remediate → report to Matrix.
+  cycles → invoke stack-support agent to remediate → report to Matrix. Also
+  reads Kuma's `important=1` heartbeat transitions since the last cycle (tracked
+  by heartbeat id) to catch services that blipped DOWN→UP on their own, and
+  hands those self-recovered windows to the agent for a log post-mortem.
 - **Upgrade loop** (7 days): resolve containers behind tracked services → agent
   researches + applies safe upgrades (test, pin, rollback); escalates
   major/breaking ones to Matrix.
-- **Matrix**: bot `@maintainer:semprini.me` DMs `@paul:semprini.me`. Escalations
+- **Matrix**: bot `@maintainer-bot:semprini.me` DMs `@paul:semprini.me`. Escalations
   are numbered questions; the reply is fed back to the agent to carry out.
 - **Autonomy** (`config.json` → `autonomy`): `full` (default) | `fix-only` |
   `notify`.
@@ -56,7 +59,7 @@ Claude Code, then relays/acts on the agent's JSON result.
 |---|---|
 | `maintainer.py` | The daemon (stdlib only). |
 | `config.example.json` | Template — copy to `config.json`. |
-| `register-matrix-bot.sh` | Creates `@maintainer` account + DM room; writes token to config. |
+| `register-matrix-bot.sh` | Creates `@maintainer-bot` account + DM room; writes token to config. |
 | `install.sh` | Syntax-check, install unit, enable + start. |
 | `semprini-maintainer.service` | systemd unit (runs as `paul`). |
 | `docs/architecture.md` | Architecture decision record. |