AUTO-001: add automation approval workflow

Closes #21

app/main.py

@@ -5,6 +5,8 @@ from typing import cast
 from fastapi import FastAPI
 
 from app.api.v1.entities import router as entities_router
+from app.api.v1.automations import router as automations_router
+from app.automations.store import AutomationStore
 from app.config import load_settings
 from app.core.exception_handlers import register_exception_handlers
 from app.ha.client import HaClient, HaClientSettings
@@ -18,6 +20,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
     settings = app.state.settings
     client: HaClient | None = None
     app.state.registry = ModelRegistry(settings.model_store)
+    app.state.automation_store = AutomationStore(settings.automation_store)
     if hasattr(app.state, "ha_reader"):
         del app.state.ha_reader
     if settings.ha_configured:
@@ -44,6 +47,7 @@ app = FastAPI(
 app.state.settings = load_settings()
 register_exception_handlers(app)
 app.include_router(entities_router)
+app.include_router(automations_router)
 init_ml_routes(app, model_store=app.state.settings.model_store)