Improve the design of the frontend 2

services/data/app/api/traffic.py

@@ -12,7 +12,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.database import get_db
 from app.services.traffic_service import TrafficService
-from app.services.messaging import data_publisher
+from app.services.messaging import data_publisher, publish_traffic_updated
 from app.schemas.external import (
     TrafficDataResponse,
     HistoricalTrafficRequest
@@ -45,7 +45,7 @@ async def get_current_traffic(
         
         # Publish event (with error handling)
         try:
-            await data_publisher.publish_traffic_updated({
+            await publish_traffic_updated({
                 "type": "current_requested",
                 "latitude": latitude,
                 "longitude": longitude,
@@ -91,7 +91,7 @@ async def get_historical_traffic(
         
         # Publish event (with error handling)
         try:
-            await data_publisher.publish_traffic_updated({
+            await publish_traffic_updated({
                 "type": "historical_requested",
                 "latitude": request.latitude,
                 "longitude": request.longitude,

services/data/app/external/madrid_opendata.py

@@ -59,7 +59,7 @@ MADRID_BOUNDS = {
 }
 
 # Constants
-MAX_HISTORICAL_DAYS = 365
+MAX_HISTORICAL_DAYS = 1095  # 3 years - allow longer training periods
 MAX_CSV_PROCESSING_ROWS = 5000000
 MEASUREMENT_POINTS_LIMIT = 20
 UTM_ZONE = 30  # Madrid is in UTM Zone 30N