Add Docker support and enhance data models for tender details

- Introduced a .dockerignore file to optimize Docker builds by excluding unnecessary files.
- Updated the Dockerfile to use a Flutter base image, enabling web builds for the application.
- Added new data models for `Lot` and `OrganizationAddress` to represent tender details more accurately.
- Enhanced the `Organization` model to include `companyId` and a nested `address` field.
- Updated the `TenderData` model to include new fields such as `noticeTypeCode`, `formType`, and `lots`, reflecting the API response structure.
- Regenerated necessary code for data models to ensure compatibility with the updated structures.

lib/view_models/tenders_view_model.dart

@@ -39,42 +39,12 @@ class TendersViewModel with ChangeNotifier {
 
   static const int _pageSize = 10;
 
-  // --- Offset pagination state ---
+  // --- Infinite-scroll offset state ---
   int _currentOffset = 0;
-  int _lastValidPages = 1;
-  int _lastValidLimit = _pageSize;
 
   bool _hasMoreData = true;
   bool get hasMoreData => _hasMoreData;
 
-  /// 0-based current page index.
-  int get currentPageIndex {
-    final meta = _tendersResponse?.meta;
-    final limit = meta?.limit ?? _lastValidLimit;
-
-    if (limit > 0) {
-      return _currentOffset ~/ limit;
-    }
-    if (meta?.offset != null && limit > 0) {
-      return meta!.offset! ~/ limit;
-    }
-    if (meta?.page != null) {
-      return meta!.page! - 1;
-    }
-    return 0;
-  }
-
-  /// 1-based current page (for display).
-  int get currentPage => currentPageIndex + 1;
-
-  int get totalPages {
-    final pages = _tendersResponse?.meta?.pages;
-    if (pages != null && pages > 0) {
-      return pages;
-    }
-    return _lastValidPages;
-  }
-
   // Filter States
   DateTimeRange? selectedDateRange;
   String selectedStatus = 'All';
@@ -233,12 +203,6 @@ class TendersViewModel with ChangeNotifier {
       case Ok<TendersResponse>():
         _tendersResponse = result.value;
         final meta = _tendersResponse?.meta;
-        if (meta?.pages != null && meta!.pages! > 0) {
-          _lastValidPages = meta.pages!;
-        }
-        if (meta?.limit != null && meta!.limit! > 0) {
-          _lastValidLimit = meta.limit!;
-        }
         if (meta?.offset != null) {
           _currentOffset = meta!.offset!;
         }
@@ -299,12 +263,6 @@ class TendersViewModel with ChangeNotifier {
             data: result.value.data?.copyWith(tenders: combined),
           );
           final newMeta = result.value.meta;
-          if (newMeta?.pages != null && newMeta!.pages! > 0) {
-            _lastValidPages = newMeta.pages!;
-          }
-          if (newMeta?.limit != null && newMeta!.limit! > 0) {
-            _lastValidLimit = newMeta.limit!;
-          }
           _hasMoreData =
               newMeta?.hasMore ?? (newTenders.length >= _pageSize);
         } else {
@@ -492,54 +450,4 @@ class TendersViewModel with ChangeNotifier {
     sortOrder = '';
     notifyListeners();
   }
-
-  /// [selected] is the absolute 0-based target page index.
-  Future<void> handlePaginationChange(int selected) async {
-    if (selected < 0) {
-      return;
-    }
-    final maxPage = totalPages - 1;
-    if (maxPage >= 0 && selected > maxPage) {
-      return;
-    }
-
-    if (selected == currentPageIndex) {
-      return;
-    }
-
-    await _goToOffsetPage(selected);
-  }
-
-  Future<void> _goToOffsetPage(int pageIndex) async {
-    final limit = _tendersResponse?.meta?.limit ?? _pageSize;
-    _currentOffset = pageIndex * limit;
-    await _fetchPage();
-  }
-
-  Future<void> _fetchPage() async {
-    _isLoading = true;
-    notifyListeners();
-
-    final result = await _tendersRepository.getTenders(
-      limit: _pageSize,
-      offset: _currentOffset,
-      query: _searchQuery,
-      sortBy: sortBy,
-      sortOrder: sortOrder,
-      publicationDateFrom: startDateUnix,
-      publicationDateTo: endDateUnix,
-    );
-
-    _handleListResult(result, fetchAllFeedbacks: true);
-    _isLoading = false;
-    notifyListeners();
-    _errorMessage = null;
-    notifyListeners();
-  }
-
-  /// Kept for backwards compatibility with existing callers.
-  /// Accepts a 1-based page number.
-  void jumpToPage(int page) {
-    handlePaginationChange(page - 1);
-  }
 }