feat: add REST API endpoints for events, known objects, and settings

Routes package with CRUD endpoints: event listing/filtering/tagging/dismissal,
known object management with thumbnails, settings CRUD, and stats.
64 tests passing.

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

app/main.py

@@ -23,6 +23,9 @@ from fastapi.staticfiles import StaticFiles
 from config import config
 from database import close_connection, get_connection, init_db, set_db_path
 from matrix_client import MatrixClient
+from routes.events import router as events_router
+from routes.known_objects import router as known_objects_router
+from routes.settings import router as settings_router
 from vision import analyze_snapshot
 
 # --- Logging ---
@@ -253,6 +256,11 @@ app = FastAPI(
     lifespan=lifespan,
 )
 
+# Include API routers
+app.include_router(events_router)
+app.include_router(known_objects_router)
+app.include_router(settings_router)
+
 # Mount static files directory
 static_dir = Path(__file__).parent / "static"
 static_dir.mkdir(exist_ok=True)