Add services layer, tests, streaming UI, and cleanup legacy code

crawler/rec/route_serializer.py

@@ -0,0 +1,41 @@
+import json
+from typing import List
+
+from models.listing import DestinationMode, Route, RouteLegStep
+from rec import routing
+
+
+class RouteSerializer:
+    @staticmethod
+    def serialize(route): ...
+
+    @staticmethod
+    def deserialize(route_data_json: str) -> dict[DestinationMode, List[Route]]:
+        json_data = json.loads(route_data_json)
+        destimation_routes = {}
+        for destination_mode_str, routes_json in json_data.items():
+            destination_mode = DestinationMode(
+                destination_address=json.loads(destination_mode_str)[
+                    "destination_address"
+                ],
+                travel_mode=routing.TravelMode(
+                    json.loads(destination_mode_str)["travel_mode"]
+                ),
+            )
+            parsed_route = json.loads(routes_json[0])
+            routes = [
+                Route(
+                    legs=[
+                        RouteLegStep(
+                            distance_meters=step["distance_meters"],
+                            duration_s=step["duration_s"],
+                            travel_mode=routing.TravelMode(step["travel_mode"]),
+                        )
+                        for step in parsed_route["legs"]
+                    ],
+                    distance_meters=parsed_route["distance_meters"],
+                    duration_s=int(parsed_route["duration_s"]),
+                )
+            ]
+            destimation_routes[destination_mode] = routes
+        return destimation_routes