⚡️ Stop.postal_region and Line.id/operator_id can be integer values

backend/main.py

@@ -73,13 +73,11 @@ trace.set_tracer_provider(TracerProvider())
 trace.get_tracer_provider().add_span_processor(BatchSpanProcessor(OTLPSpanExporter()))
 tracer = trace.get_tracer(APP_NAME)
 
-with tracer.start_as_current_span("foo"):
-    print("Hello world!")
-
 
 idfm_interface = IdfmInterface(API_KEY, db)
 
 
+# TODO: Add command line argument to force database reset.
 @app.on_event("startup")
 async def startup():
     await db.connect(DB_PATH, clear_static_data=True)
@@ -102,7 +100,7 @@ def optional_datetime_to_ts(dt: datetime | None) -> int | None:
 
 
 @app.get("/line/{line_id}", response_model=LineSchema)
-async def get_line(line_id: str) -> LineSchema:
+async def get_line(line_id: int) -> LineSchema:
     line: Line | None = await Line.get_by_id(line_id)
 
     if line is None: