M8-T16: add thermal meter cost APIs

app/main.py

@@ -17,6 +17,7 @@ from app.api.routes.api.config import router as api_config_router
 from app.api.routes.api.data import router as api_data_router
 from app.api.routes.api.energy import router as api_energy_router
 from app.api.routes.api.energy_contracts import router as api_energy_contracts_router
+from app.api.routes.api.meter_costs import router as api_meter_costs_router
 from app.api.routes.api.expose import router as api_expose_router
 from app.api.routes.api.meters import router as api_meters_router
 from app.api.routes.api.meter_sources import router as api_meter_sources_router
@@ -343,6 +344,7 @@ def create_app() -> FastAPI:
     app.include_router(api_data_router)
     app.include_router(api_energy_router)
     app.include_router(api_energy_contracts_router)
+    app.include_router(api_meter_costs_router)
     app.include_router(api_meters_router)
     app.include_router(api_meter_sources_router)
     app.include_router(api_expose_router)