Make port configurable (default 5100)

- Port now set via config.json "port" field
- Aggregator reads PORT from environment variable
- Updated all docs and scripts to use port 5100

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

README.md

@@ -30,7 +30,7 @@ pip install -r requirements.txt
 python kao.py
 ```
 
-Open http://localhost:5000 on your phone (use Fully Kiosk Browser for best results).
+Open http://localhost:5100 on your phone (use Fully Kiosk Browser for best results).
 
 ## Status Faces
 
@@ -59,7 +59,7 @@ Edit `config.json` to enable/disable detectors and set thresholds:
 
 ```json
 {
-  "aggregator_url": "http://localhost:5000",
+  "aggregator_url": "http://localhost:5100",
   "detectors": [
     {
       "name": "disk_space",
@@ -80,7 +80,7 @@ Edit `config.json` to enable/disable detectors and set thresholds:
 Create your own detector by POSTing events to the aggregator:
 
 ```bash
-curl -X POST http://localhost:5000/event \
+curl -X POST http://localhost:5100/event \
   -H "Content-Type: application/json" \
   -d '{"id": "my_check", "priority": 2, "message": "Something is wrong", "ttl": 120}'
 ```
@@ -92,7 +92,7 @@ curl -X POST http://localhost:5000/event \
 
 Clear an event:
 ```bash
-curl -X POST http://localhost:5000/clear \
+curl -X POST http://localhost:5100/clear \
   -d '{"id": "my_check"}'
 ```
 
@@ -103,10 +103,10 @@ Add webhook commands to your Home Assistant config:
 ```yaml
 rest_command:
   sentry_sleep:
-    url: "http://YOUR_SERVER:5000/sleep"
+    url: "http://YOUR_SERVER:5100/sleep"
     method: POST
   sentry_wake:
-    url: "http://YOUR_SERVER:5000/wake"
+    url: "http://YOUR_SERVER:5100/wake"
     method: POST
 ```