feat(client_coverage): add client coverage feature with user session data use case and dashboard widgets

- Created `client_coverage` feature with necessary dependencies in `pubspec.yaml`.
- Implemented `GetUserSessionDataUseCase` for retrieving user session data.
- Developed `ClientHomeEditBanner` for edit mode instructions and reset functionality.
- Added `ClientHomeHeader` to display user information and action buttons.
- Built `DashboardWidgetBuilder` to render various dashboard widgets based on state.
- Introduced `DraggableWidgetWrapper` for managing widget visibility and drag handles in edit mode.
- Created `HeaderIconButton` for interactive header actions with optional badge support.

apps/mobile/packages/features/client/client_main/pubspec.yaml

@@ -23,6 +23,8 @@ dependencies:
     path: ../../../core_localization
   client_home:
     path: ../home
+  client_coverage:
+    path: ../client_coverage
   view_orders:
     path: ../view_orders
   billing: