feat: travel service with 2GIS routing, POI, hotels + finance providers + UI overhaul

- Add travel-svc microservice (Amadeus, TravelPayouts, 2GIS, OpenRouteService)
- Add travel orchestrator with parallel collectors (events, POI, hotels, flights)
- Add 2GIS road routing with transport cost calculation (car/bus/taxi)
- Add TravelMap (2GIS MapGL) and TravelWidgets components
- Add useTravelChat hook for streaming travel agent responses
- Add finance heatmap providers refactor
- Add SearXNG settings, API proxy routes, Docker compose updates
- Update Dockerfiles, config, types, and all UI pages for consistency

Made-with: Cursor

backend/deploy/docker/searxng/settings.yml

@@ -0,0 +1,23 @@
+use_default_settings: true
+
+general:
+  instance_name: "GooSeek Search"
+  debug: false
+
+search:
+  safe_search: 0
+  autocomplete: ""
+  default_lang: "ru"
+  formats:
+    - html
+    - json
+
+server:
+  secret_key: "gooseek-searxng-secret-key-change-in-production"
+  bind_address: "0.0.0.0"
+  port: 8080
+  limiter: false
+  image_proxy: false
+
+ui:
+  static_use_hash: true