fix: Resolve Traefik network and labeler configuration errors

Traefik Network Fix:
- Change homelab network to external: true
- Consistent with all other services
- Network must be created before deploying Traefik
- Resolves CI validation warning

Labeler Configuration Fix:
- Remove unsupported changed-lines option
- actions/labeler@v5 doesn't support line-based matching
- Simplified to file path matching only
- Removes 'traefik' and 'dependencies' advanced filters
- Resolves 'Unknown config options' error

CI should now pass all validation checks

.github/labeler.yml

@@ -40,10 +40,6 @@
 'traefik':
   - changed-files:
     - any-glob-to-any-file: 'compose/core/traefik/**/*'
-  - changed-files:
-    - any-glob-to-any-file: 'compose/**/compose.yaml'
-      changed-lines:
-      - pattern: 'traefik\.'
 
 'authentication':
   - changed-files:
@@ -54,7 +50,3 @@
 'dependencies':
   - changed-files:
     - any-glob-to-any-file: '**/compose.yaml'
-  - changed-files:
-    - any-glob-to-any-file: 'compose/**/compose.yaml'
-      changed-lines:
-      - pattern: 'image:'

compose/core/traefik/compose.yaml

@@ -42,5 +42,4 @@ services:
 
 networks:
   homelab:
-    name: homelab
-    driver: bridge
+    external: true