feat: add API routers for network, tasks, calendar, and services

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/routers/services.py

@@ -0,0 +1,13 @@
+from fastapi import APIRouter
+
+router = APIRouter(prefix="/api/services", tags=["services"])
+
+
+@router.get("/config")
+async def get_config():
+    from main import app_config
+    settings = app_config.get_settings()
+    return {
+        "display": settings.get("display", {}),
+        "refresh": settings.get("refresh", {}),
+    }