Refactor booking system: remove unused classes, update dependencies, and implement date selection logic

lib/pages/access_management/booking_system/domain/services/DebouncedBookingSystemService.dart

@@ -0,0 +1,58 @@
+import 'dart:async';
+import 'package:syncrow_web/pages/access_management/booking_system/domain/models/paginated_bookable_spaces.dart';
+import 'package:syncrow_web/pages/access_management/booking_system/domain/services/booking_system_service.dart';
+
+class DebouncedBookingSystemService implements BookingSystemService {
+  final BookingSystemService _inner;
+  final Duration debounceDuration;
+
+  Timer? _debounceTimer;
+  Completer<PaginatedBookableSpaces>? _lastCompleter;
+
+  // Store last parameters
+  int? _lastPage;
+  int? _lastSize;
+  bool? _lastIncludeSpaces;
+  String? _lastSearch;
+
+  DebouncedBookingSystemService(
+    this._inner, {
+    this.debounceDuration = const Duration(milliseconds: 500),
+  });
+
+  @override
+  Future<PaginatedBookableSpaces> getBookableSpaces({
+    required int page,
+    required int size,
+    required String search,
+  }) {
+    _debounceTimer?.cancel();
+    _lastCompleter?.completeError(StateError("Cancelled by new search"));
+
+    final completer = Completer<PaginatedBookableSpaces>();
+    _lastCompleter = completer;
+
+    _lastPage = page;
+    _lastSize = size;
+    _lastSearch = search;
+
+    _debounceTimer = Timer(debounceDuration, () async {
+      try {
+        final result = await _inner.getBookableSpaces(
+          page: _lastPage!,
+          size: _lastSize!,
+          search: _lastSearch!,
+        );
+        if (!completer.isCompleted) {
+          completer.complete(result);
+        }
+      } catch (e, st) {
+        if (!completer.isCompleted) {
+          completer.completeError(e, st);
+        }
+      }
+    });
+
+    return completer.future;
+  }
+}

lib/pages/access_management/booking_system/domain/services/booking_system_service.dart

@@ -0,0 +1,10 @@
+import 'package:syncrow_web/pages/access_management/booking_system/domain/models/paginated_bookable_spaces.dart';
+
+abstract class BookingSystemService {
+  Future<PaginatedBookableSpaces> getBookableSpaces({
+    required int page,
+    required int size,
+    required String search,
+    
+  });
+}