Add /notify endpoint for Home Assistant integration

- New /notify endpoint: simple {"message": "", "duration": 5} API
- Uses Priority 3 (Notify) with auto-expiring TTL
- Updated CLAUDE.md with HA integration examples
- Updated README.md with new features and endpoints
- Added Docker detector to documentation
- Removed completed TODO items

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -61,6 +61,7 @@ Edit `config.json` to configure detectors:
 | Memory | `detectors/memory.py` | — |
 | Service | `detectors/service.py` | `SERVICES` (comma-separated process names) |
 | Network | `detectors/network.py` | `HOSTS` (comma-separated hostnames/IPs) |
+| Docker | `detectors/docker.py` | `CONTAINERS` (optional, monitors all if empty) |
 
 All detectors support: `AGGREGATOR_URL`, `CHECK_INTERVAL`, `THRESHOLD_WARNING`, `THRESHOLD_CRITICAL`
 
@@ -70,7 +71,8 @@ All detectors support: `AGGREGATOR_URL`, `CHECK_INTERVAL`, `THRESHOLD_WARNING`,
 |----------|--------|-------------|
 | `/event` | POST | Register event: `{"id": "name", "priority": 1-4, "message": "optional", "ttl": seconds}` |
 | `/clear` | POST | Clear event: `{"id": "name"}` |
-| `/sleep` | POST | Enter sleep mode (for Home Assistant) |
+| `/notify` | POST | Simple notification: `{"message": "text", "duration": 5}` |
+| `/sleep` | POST | Enter sleep mode |
 | `/wake` | POST | Exit sleep mode |
 | `/status` | GET | Current state JSON |
 | `/events` | GET | List active events |
@@ -93,7 +95,7 @@ The optimal state cycles through emotes with paired animations every 5 minutes:
 | Emote | Animation | Vibe |
 |-------|-----------|------|
 | `( ^_^)` | breathing | calm |
-| `( ᵔᴥᵔ)` | floating | dreamy |
+| `( ˙▿˙)` | floating | content |
 | `(◕‿◕)` | bouncing | cheerful |
 | `( ・ω・)` | swaying | curious |
 | `( ˘▽˘)` | breathing | cozy |
@@ -104,6 +106,43 @@ Additional states:
 - **Connection lost**: `( ?.?)` gray, searching animation
 - **Sleep mode**: `( -_-)zzZ` dim, very slow breathing
 
+## Home Assistant Integration
+
+Add REST commands to `configuration.yaml`:
+
+```yaml
+rest_command:
+  kao_notify:
+    url: "http://kao-host:5100/notify"
+    method: POST
+    content_type: "application/json"
+    payload: '{"message": "{{ message }}", "duration": {{ duration | default(5) }}}'
+
+  kao_sleep:
+    url: "http://kao-host:5100/sleep"
+    method: POST
+
+  kao_wake:
+    url: "http://kao-host:5100/wake"
+    method: POST
+```
+
+Use in automations:
+
+```yaml
+# Doorbell notification
+- service: rest_command.kao_notify
+  data:
+    message: "Someone at the door"
+    duration: 10
+
+# Bedtime routine
+- service: rest_command.kao_sleep
+
+# Morning routine
+- service: rest_command.kao_wake
+```
+
 ## File Structure
 
 ```
@@ -116,7 +155,8 @@ Additional states:
 │   ├── cpu.py
 │   ├── memory.py
 │   ├── service.py
-│   └── network.py
+│   ├── network.py
+│   └── docker.py
 ├── requirements.txt
 └── SPEC.md             # Original project specification
 ```