feat: Migrate staff profile features from Data Connect to V2 REST API

- Removed data_connect package from mobile pubspec.yaml.
- Added documentation for V2 profile migration status and QA findings.
- Implemented new session management with ClientSessionStore and StaffSessionStore.
- Created V2SessionService for handling user sessions via the V2 API.
- Developed use cases for cancelling late worker assignments and submitting worker reviews.
- Added arguments and use cases for payment chart retrieval and profile completion checks.
- Implemented repository interfaces and their implementations for staff main and profile features.
- Ensured proper error handling and validation in use cases.

apps/mobile/packages/core_localization/lib/src/l10n/en.i18n.json

@@ -785,6 +785,9 @@
       "personal_info": {
         "title": "Personal Info",
         "change_photo_hint": "Tap to change photo",
+        "choose_photo_source": "Choose Photo Source",
+        "photo_upload_success": "Profile photo updated",
+        "photo_upload_failed": "Failed to upload photo. Please try again.",
         "full_name_label": "Full Name",
         "email_label": "Email",
         "phone_label": "Phone Number",

apps/mobile/packages/core_localization/lib/src/l10n/es.i18n.json

@@ -780,6 +780,9 @@
       "personal_info": {
         "title": "Informaci\u00f3n Personal",
         "change_photo_hint": "Toca para cambiar foto",
+        "choose_photo_source": "Elegir fuente de foto",
+        "photo_upload_success": "Foto de perfil actualizada",
+        "photo_upload_failed": "Error al subir la foto. Por favor, int\u00e9ntalo de nuevo.",
         "full_name_label": "Nombre Completo",
         "email_label": "Correo Electr\u00f3nico",
         "phone_label": "N\u00famero de Tel\u00e9fono",