feat: add migration runner and wire into create_app

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

fablednetmon/app.py

@@ -35,11 +35,20 @@ def create_app(
         from unittest.mock import MagicMock
         app.db_sessionmaker = MagicMock()
 
+    # Run migrations (core + plugin) synchronously before event loop starts
+    if not testing:
+        from .core.migration_runner import run_migrations, get_plugin_migration_dirs
+        _plugin_dir = Path(app.config["PLUGIN_DIR"])
+        _plugin_migration_dirs = get_plugin_migration_dirs(
+            _plugin_dir, app.config["PLUGINS"]
+        )
+        run_migrations(app.config["DATABASE_URL"], _plugin_migration_dirs)
+
     # Alert pipeline
     from .core.alerts import init_alerts
     init_alerts(app)
 
-    # Register blueprints
+    # Register core blueprints
     from .auth.routes import auth_bp
     from .dashboard.routes import dashboard_bp
     from .hosts.routes import hosts_bp
@@ -58,6 +67,11 @@ def create_app(
     if not testing:
         _register_core_tasks(app, cfg)
 
+    # Load plugins
+    if not testing:
+        from .core.plugin_manager import load_plugins
+        load_plugins(app)
+
     # Health check
     @app.get("/health")
     async def health():