docs: update coordinator API port references from 8000 to 8011

- Update infrastructure/SYSTEMD_SERVICES.md: coordinator API port 8000 → 8011
- Update reference/PORT_MAPPING_GUIDE.md: coordinator API port 8000 → 8011
- Update guides/getting-started/2_installation.md: health check and troubleshooting port 8000 → 8011
- Update guides/getting-started/3_cli.md: coordinator API URL and health check port 8000 → 8011
- Coordinator API is now on port 8011 (not 8000)
- More documentation files still need updates

docs/guides/getting-started/2_installation.md

@@ -87,7 +87,7 @@ systemctl enable --now aitbc-blockchain-node-1
 
 ```bash
 systemctl status aitbc-coordinator-api
-curl http://localhost:8000/v1/health
+curl http://localhost:8011/health
 aitbc blockchain status
 ```
 
@@ -95,7 +95,7 @@ aitbc blockchain status
 
 | Problem | Fix |
 |---------|-----|
-| Port in use | `sudo lsof -i :8000` then `kill` the PID |
+| Port in use | `sudo lsof -i :8011` then `kill` the PID |
 | DB corrupt | `rm -f data/coordinator.db && python -m app.storage init` |
 | Module not found | Ensure venv is active: `source .venv/bin/activate` |
 

docs/guides/getting-started/3_cli.md

@@ -175,10 +175,10 @@ echo $PATH | grep aitbc
 aitbc --debug blockchain status
 
 # Test with custom URL
-aitbc --url http://localhost:8000 blockchain info
+aitbc --url http://localhost:8011 blockchain info
 
 # Check service endpoints
-curl http://localhost:8000/health
+curl http://localhost:8011/health
 ```
 
 ### Debug Mode