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>

README.md

@@ -8,18 +8,14 @@ A minimalist system status monitor that uses ASCII emotes to display server heal
 
 Turn an old phone (with its OLED screen) into a glanceable ambient display for your home server. Instead of graphs and numbers, see a happy face `( ^_^)` when things are good, and a worried face `( o_o)` when they're not.
 
-## TODO
-
-- Figure out way to update installation in /opt/kao when git updates. Maybe run a git pull on service startup?
-- Think about ways of implementing noises.
-
 ## Features
 
 - **OLED-optimized** — Pure black background, saves battery
 - **Glanceable** — Know your server's status from across the room
 - **Extensible** — Add custom detectors for any metric
 - **Personality** — Rotating expressions, celebration animations, sleep mode
-- **Home Assistant ready** — Webhook endpoints for automation
+- **Sound effects** — Optional audio cues for state changes (tap to enable)
+- **Home Assistant ready** — Webhook endpoints for notifications and automation
 
 ## Quick Start
 
@@ -50,13 +46,14 @@ Open http://localhost:5100 on your phone (use Fully Kiosk Browser for best resul
 
 ## Built-in Detectors
 
-| Detector       | Monitors                      |
-| -------------- | ----------------------------- |
-| **disk_space** | Disk usage on all drives      |
-| **cpu**        | CPU utilization               |
-| **memory**     | RAM usage                     |
-| **service**    | Whether processes are running |
-| **network**    | Host reachability (ping)      |
+| Detector       | Monitors                              |
+| -------------- | ------------------------------------- |
+| **disk_space** | Disk usage on all drives              |
+| **cpu**        | CPU utilization                       |
+| **memory**     | RAM usage                             |
+| **service**    | Whether processes are running         |
+| **network**    | Host reachability (ping)              |
+| **docker**     | Container health and restart loops    |
 
 ## Configuration
 
@@ -104,57 +101,83 @@ curl -X POST http://localhost:5100/clear \
 
 ## Home Assistant Integration
 
-Add webhook commands to your Home Assistant config:
+Add REST commands to your `configuration.yaml`:
 
 ```yaml
 rest_command:
-  sentry_sleep:
+  kao_notify:
+    url: "http://YOUR_SERVER:5100/notify"
+    method: POST
+    content_type: "application/json"
+    payload: '{"message": "{{ message }}", "duration": {{ duration | default(5) }}}'
+
+  kao_sleep:
     url: "http://YOUR_SERVER:5100/sleep"
     method: POST
-  sentry_wake:
+
+  kao_wake:
     url: "http://YOUR_SERVER:5100/wake"
     method: POST
 ```
 
-Trigger from automations:
+Use in automations:
 
 ```yaml
 automation:
-  - alias: "Sentry Sleep at Bedtime"
+  - alias: "Doorbell Notification"
+    trigger:
+      platform: state
+      entity_id: binary_sensor.doorbell
+      to: "on"
+    action:
+      service: rest_command.kao_notify
+      data:
+        message: "Someone at the door"
+        duration: 10
+
+  - alias: "Kao Sleep at Bedtime"
     trigger:
       platform: time
       at: "23:00:00"
     action:
-      service: rest_command.sentry_sleep
+      service: rest_command.kao_sleep
 
-  - alias: "Sentry Wake in Morning"
+  - alias: "Kao Wake in Morning"
     trigger:
       platform: time
       at: "07:00:00"
     action:
-      service: rest_command.sentry_wake
+      service: rest_command.kao_wake
 ```
 
 ## API Reference
 
-| Endpoint  | Method | Description            |
-| --------- | ------ | ---------------------- |
-| `/`       | GET    | Web UI                 |
-| `/status` | GET    | Current state as JSON  |
-| `/events` | GET    | List all active events |
-| `/event`  | POST   | Register an event      |
-| `/clear`  | POST   | Clear an event by ID   |
-| `/sleep`  | POST   | Enter sleep mode       |
-| `/wake`   | POST   | Exit sleep mode        |
+| Endpoint  | Method | Description                                      |
+| --------- | ------ | ------------------------------------------------ |
+| `/`       | GET    | Web UI                                           |
+| `/status` | GET    | Current state as JSON                            |
+| `/events` | GET    | List all active events                           |
+| `/event`  | POST   | Register an event                                |
+| `/clear`  | POST   | Clear an event by ID                             |
+| `/notify` | POST   | Simple notification `{"message": "", "duration": 5}` |
+| `/sleep`  | POST   | Enter sleep mode                                 |
+| `/wake`   | POST   | Exit sleep mode                                  |
 
 ## Personality
 
 The emote has personality! In optimal state it:
 
 - Rotates through happy faces every 5 minutes
-- Occasionally winks `( -_^)` or blinks `( ᵕ.ᵕ)`
+- Occasionally winks `( -_^)` or blinks `( ᵕ.ᵕ)` for a second or two
 - Celebrates `\(^o^)/` when recovering from warnings
 - Each face has its own animation (floating, bouncing, swaying)
+- Reacts when tapped `( °o°)` and shows version info
+
+**Sound effects** (tap screen to enable, or use `?sound=on`):
+- Warning: soft double-beep
+- Critical: urgent descending tone
+- Notify: gentle ping
+- Recovery: happy ascending chirp
 
 ## License