Add web research and source file reading

SovereignAI-Starter/flutter_app/lib/core/network/api_repository.dart

@@ -205,6 +205,45 @@ class ApiRepository {
     }
   }
 
+  Future<String> searchWeb(String query, {String? model}) async {
+    final client = http.Client();
+    _activeRequestClient = client;
+    try {
+      final request = http.Request(
+        'POST',
+        Uri.parse('$_baseUrl/v1/web/search'),
+      )
+        ..headers['Content-Type'] = 'application/json'
+        ..body = jsonEncode({
+          'query': query,
+          'max_results': 5,
+          if (model != null) 'model': model,
+        });
+      final streamed = await client
+          .send(request)
+          .timeout(const Duration(minutes: 10));
+      final response = await http.Response.fromStream(streamed);
+      _checkStatus(response);
+      final data = jsonDecode(response.body) as Map<String, dynamic>;
+      final result = data['result'] as String? ?? '';
+      final sources = (data['sources'] as List<dynamic>? ?? const [])
+          .cast<Map<String, dynamic>>();
+      if (sources.isEmpty) return result;
+      final sourceList = sources.map((source) {
+        final index = source['index'];
+        final title = source['title'] as String? ?? 'مصدر';
+        final url = source['url'] as String? ?? '';
+        final status = source['status'] as String?;
+        final note = status == 'snippet_only' ? ' (مقتطف فقط؛ تعذر فتح الصفحة)' : '';
+        return '[$index] [$title]($url)$note';
+      }).join('\n');
+      return '$result\n\nالمصادر:\n$sourceList';
+    } finally {
+      if (identical(_activeRequestClient, client)) _activeRequestClient = null;
+      client.close();
+    }
+  }
+
   Stream<String> completeStream(
     List<ChatMessage> messages, {
     String? model,

SovereignAI-Starter/flutter_app/lib/features/chat/presentation/cubit/chat_cubit.dart

@@ -88,6 +88,19 @@ class ChatCubit extends Cubit<ChatState> {
       emit(
         state.copyWith(
           isWorkspaceMode: !state.isWorkspaceMode,
+          isWebSearchMode: false,
+          clearError: true,
+        ),
+      );
+    }
+  }
+
+  void toggleWebSearchMode() {
+    if (!state.isSending) {
+      emit(
+        state.copyWith(
+          isWebSearchMode: !state.isWebSearchMode,
+          isWorkspaceMode: false,
           clearError: true,
         ),
       );
@@ -254,11 +267,11 @@ class ChatCubit extends Cubit<ChatState> {
         ),
       );
       _startElapsedTimer(generation);
-      if (state.isWorkspaceMode) {
-        answer = await _api.askWorkspaceAgent(
-          prompt,
-          model: state.selectedModel,
-        );
+      if (state.isWorkspaceMode || state.isWebSearchMode) {
+        answer =
+            state.isWorkspaceMode
+                ? await _api.askWorkspaceAgent(prompt, model: state.selectedModel)
+                : await _api.searchWeb(prompt, model: state.selectedModel);
         if (isClosed || generation != _requestGeneration) return;
         if (answer.trim().isEmpty) {
           throw Exception('لم يصل نص في إجابة الوكيل.');

SovereignAI-Starter/flutter_app/lib/features/chat/presentation/cubit/chat_state.dart

@@ -81,6 +81,7 @@ class ChatState {
     this.isLoadingHistory = true,
     this.isSending = false,
     this.isWorkspaceMode = false,
+    this.isWebSearchMode = false,
     this.error,
     this.modelName = 'جارٍ اكتشاف النموذج…',
     this.modelStatus = ModelConnectionStatus.checking,
@@ -98,6 +99,7 @@ class ChatState {
   final bool isLoadingHistory;
   final bool isSending;
   final bool isWorkspaceMode;
+  final bool isWebSearchMode;
   final String? error;
   final String modelName;
   final ModelConnectionStatus modelStatus;
@@ -116,6 +118,7 @@ class ChatState {
     bool? isLoadingHistory,
     bool? isSending,
     bool? isWorkspaceMode,
+    bool? isWebSearchMode,
     String? error,
     bool clearError = false,
     String? modelName,
@@ -138,6 +141,7 @@ class ChatState {
     isLoadingHistory: isLoadingHistory ?? this.isLoadingHistory,
     isSending: isSending ?? this.isSending,
     isWorkspaceMode: isWorkspaceMode ?? this.isWorkspaceMode,
+    isWebSearchMode: isWebSearchMode ?? this.isWebSearchMode,
     error: clearError ? null : (error ?? this.error),
     modelName: modelName ?? this.modelName,
     modelStatus: modelStatus ?? this.modelStatus,

SovereignAI-Starter/flutter_app/lib/features/chat/presentation/pages/chat_page.dart

@@ -554,6 +554,18 @@ class _ChatPageState extends State<ChatPage> {
                     : Icons.folder_outlined,
               ),
             ),
+            IconButton(
+              onPressed: () => context.read<ChatCubit>().toggleWebSearchMode(),
+              tooltip:
+                  context.watch<ChatCubit>().state.isWebSearchMode
+                      ? 'إيقاف البحث العميق على الإنترنت'
+                      : 'بحث عميق على الإنترنت من عدة مصادر',
+              color:
+                  context.watch<ChatCubit>().state.isWebSearchMode
+                      ? _green
+                      : _ink,
+              icon: const Icon(Icons.travel_explore_rounded),
+            ),
             if (context.watch<ChatCubit>().state.availableModels.isNotEmpty)
               ConstrainedBox(
                 constraints: BoxConstraints(maxWidth: compact ? 100 : 190),
@@ -690,7 +702,9 @@ class _ChatPageState extends State<ChatPage> {
             const SizedBox(height: 8),
             Text(
               context.watch<ChatCubit>().state.isWorkspaceMode
-                  ? 'وضع الوكيل يبحث في ملفات المشروع للقراءة فقط.'
+                  ? 'وضع الملفات: اسأل عن ملفات الكود في مساحة العمل للقراءة فقط.'
+                  : context.watch<ChatCubit>().state.isWebSearchMode
+                  ? 'بحث عميق: يجلب مصادر ويب متعددة ويلخصها مع الروابط.'
                   : 'اكتب سؤالك، وسأرسله إلى النموذج المحلي على جهازك.',
               style: const TextStyle(color: Color(0xFF718078), fontSize: 14),
             ),
@@ -947,7 +961,9 @@ class _ChatPageState extends State<ChatPage> {
                     decoration: InputDecoration(
                       hintText:
                           chat.isWorkspaceMode
-                              ? 'اسأل عن ملفات مساحة العمل…'
+                              ? 'اسأل عن ملف كود أو عن مساحة العمل…'
+                              : chat.isWebSearchMode
+                              ? 'ما الموضوع الذي تريد البحث عنه على الإنترنت؟'
                               : 'اكتب رسالتك هنا…',
                       hintStyle: TextStyle(color: Color(0xFF9BA59E)),
                       border: InputBorder.none,