Refactor tender detail models and UI components for improved clarity and functionality

- Updated the `Lot`, `Organization`, and `OrganizationAddress` models to enhance data mapping for tender details.
- Revised the `TenderData` model to include additional fields reflecting the API response structure.
- Improved UI components across desktop, mobile, and tablet views by commenting out unused sections for future use.
- Added new string constants for lot details in the tender information section.
- Enhanced unit tests to cover new model fields and ensure resilience to partial API payloads.

lib/views/detail/pages/detail_desktop_page.dart

@@ -4,9 +4,6 @@ import 'package:tm_app/core/theme/colors.dart';
 import 'package:tm_app/core/utils/size_config.dart';
 import 'package:tm_app/view_models/tender_detail_view_model.dart';
 import 'package:tm_app/views/detail/widgets/tender_detail_action.dart';
-// AI-NOTE (for PR reviewer): Import kept (commented) — the TenderDetailCard
-// (static "profile match / incomplete resume" card) is disabled, not removed.
-// import 'package:tm_app/views/detail/widgets/tender_detail_card.dart';
 import 'package:tm_app/views/detail/widgets/tender_detail_header.dart';
 
 import '../../../core/constants/tender_approval_status.dart';
@@ -123,10 +120,6 @@ class _TenderDetailDesktopPageState extends State<TenderDetailDesktopPage> {
                                 detail: detail,
                               ),
                               SizedBox(height: 32.0.h()),
-                              // AI-NOTE (for PR reviewer): Static mock card
-                              // disabled (kept for future) — hard-coded data.
-                              // TenderDetailCard(detail: detail),
-                              // SizedBox(height: 24.0.h()),
                               TenderDetailActions(
                                 isScreenBig: true,
                                 detail: detail,