Add coordinate-based GraphQL operations for geo API

- Add NearestHubs.graphql - find hubs near coordinates
- Add NearestOffers.graphql - find offers near coordinates
- Add NearestSuppliers.graphql - find suppliers near coordinates
- Add RouteToCoordinate.graphql - route from offer to coordinates
- Regenerate geo-generated.ts with new operations

These operations simplify frontend logic by working with coordinates
instead of requiring entity-specific queries.

graphql/operations/public/geo/RouteToCoordinate.graphql

@@ -0,0 +1,26 @@
+query RouteToCoordinate($offerUuid: String!, $lat: Float!, $lon: Float!) {
+  routeToCoordinate(offerUuid: $offerUuid, lat: $lat, lon: $lon) {
+    sourceUuid
+    sourceName
+    sourceLat
+    sourceLon
+    distanceKm
+    routes {
+      totalDistanceKm
+      totalTimeSeconds
+      stages {
+        fromUuid
+        fromName
+        fromLat
+        fromLon
+        toUuid
+        toName
+        toLat
+        toLon
+        distanceKm
+        travelTimeSeconds
+        transportType
+      }
+    }
+  }
+}