feat: taller route tiles (h-46), labels overlay above route line for more place names, renamed auto routes become custom (rename clears auto_detected + startup backfill)

backend/app/main.py

@@ -189,6 +189,20 @@ async def init_db():
     except Exception as e:
         print(f"avg_speed_ms fix skipped: {e}")
 
+    # An auto-detected route the user has renamed should count as a custom route.
+    # Auto names are generated as "<Sport> route <DD Mon YYYY>"; any auto_detected
+    # route whose name no longer matches that pattern has been renamed → mark it
+    # custom so it groups with user-named routes.
+    try:
+        async with engine.begin() as conn:
+            await conn.execute(text(
+                "UPDATE named_routes SET auto_detected = false "
+                "WHERE auto_detected = true "
+                "AND name !~ '^.+ route [0-9]{1,2} [A-Za-z]{3} [0-9]{4}$'"
+            ))
+    except Exception as e:
+        print(f"route auto_detected backfill skipped: {e}")
+
     # Seed admin user (only if password is configured)
     if not settings.admin_password:
         print("ADMIN_PASSWORD not set - skipping admin user seed")