Add mobile UX optimization with toggleable deliveries overlay

- Add MobileDeliveriesListOpenNotifier provider for overlay state
- Create MobileMapWithOverlay component with slide-up animation
- Update routes_page.dart for responsive mobile/tablet/desktop layouts
- Mobile: full-screen map with FAB toggle for deliveries list
- Tablet/Desktop: maintain existing split-view layout

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ios/Podfile.lock

@@ -13,12 +13,12 @@ PODS:
     - Flutter
   - google_navigation_flutter (0.0.1):
     - Flutter
-    - GoogleNavigation (= 10.0.0)
-  - GoogleMaps (10.0.0):
-    - GoogleMaps/Maps (= 10.0.0)
-  - GoogleMaps/Maps (10.0.0)
-  - GoogleNavigation (10.0.0):
-    - GoogleMaps (= 10.0.0)
+    - GoogleNavigation (= 10.7.0)
+  - GoogleMaps (10.7.0):
+    - GoogleMaps/Maps (= 10.7.0)
+  - GoogleMaps/Maps (10.7.0)
+  - GoogleNavigation (10.7.0):
+    - GoogleMaps (= 10.7.0)
   - image_picker_ios (0.0.1):
     - Flutter
   - path_provider_foundation (0.0.1):
@@ -74,9 +74,9 @@ SPEC CHECKSUMS:
   Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
   flutter_appauth: d4abcf54856e5d8ba82ed7646ffc83245d4aa448
   flutter_secure_storage: 1ed9476fba7e7a782b22888f956cce43e2c62f13
-  google_navigation_flutter: aff5e273b19113b8964780ff4e899f6f2e07f6dc
-  GoogleMaps: 9ce9c898074e96655acaf1ba5d6f85991ecee7a3
-  GoogleNavigation: 963899162709d245f07a65cd68c3115292ee2bdb
+  google_navigation_flutter: d3daf840117efbfd2d70e0f70c933cffb62b3ad1
+  GoogleMaps: 5db81729b4f6defd40820d46b49a350273ec1d28
+  GoogleNavigation: ed62063d8f141a8a134703ea8246778ec3d8da01
   image_picker_ios: e0ece4aa2a75771a7de3fa735d26d90817041326
   path_provider_foundation: bb55f6dbba17d0dccd6737fe6f7f34fbd0376880
   permission_handler_apple: 4ed2196e43d0651e8ff7ca3483a069d469701f2d