Journey: add regional-only filter and service notices

- connection_type setting (all/regional/long_distance) restricts EFA
  trip requests via inclMOT_N params, so ICE/IC/EC can be filtered out
  for commutes that only care about regional/local transit.
- Surface leg.infos[].infoLinks titles (real disruption/outage notices
  from EFA) on each journey row, marked with a red warning icon.

web/app.py

@@ -141,8 +141,11 @@ def create_app(config, screens: dict, scheduler) -> Flask:
             except (TypeError, ValueError):
                 results = 3
             update_minutes = max(1, int(request.form.get("update_minutes", 2) or 2))
+            connection_type = request.form.get("connection_type", "all")
+            if connection_type not in ("all", "regional", "long_distance"):
+                connection_type = "all"
 
-            updates = {"results": results, "update_minutes": update_minutes}
+            updates = {"results": results, "update_minutes": update_minutes, "connection_type": connection_type}
             journey_screen = screens["journey"]
 
             if origin_query: