refactor: move app.py and excluded_containers.json to app/ directory

start.sh

@@ -20,7 +20,7 @@ if [ "$DEBUG_MODE" = "true" ]; then
     echo "Swagger UI: http://0.0.0.0:$LOGBOARD_PORT/docs"
     echo "ReDoc: http://0.0.0.0:$LOGBOARD_PORT/redoc"
     
-    exec uvicorn app:app \
+    exec uvicorn app.app:app \
         --host 0.0.0.0 \
         --port $LOGBOARD_PORT \
         --reload \
@@ -28,7 +28,7 @@ if [ "$DEBUG_MODE" = "true" ]; then
 else
     echo "Starting in PRODUCTION mode..."
     
-    exec uvicorn app:app \
+    exec uvicorn app.app:app \
         --host 0.0.0.0 \
         --port $LOGBOARD_PORT \
         --log-level info