refactor: cleanup

lib/core/services/api_service.dart

@@ -14,9 +14,7 @@ import '../models/chat_message.dart';
 import '../auth/api_auth_interceptor.dart';
 import '../validation/validation_interceptor.dart';
 import '../error/api_error_interceptor.dart';
-import 'sse_parser.dart';
 // Tool-call details are parsed in the UI layer to render collapsible blocks
-import 'stream_recovery_service.dart';
 import 'persistent_streaming_service.dart';
 import '../utils/debug_logger.dart';
 
@@ -2784,12 +2782,6 @@ class ApiService {
           if (!streamController.isClosed) streamController.close();
         }
       }();
-    } else {
-      // Ensure we do not leak background-only identifiers into SSE path
-      data.remove('session_id');
-      data.remove('id');
-      // Use SSE streaming with proper parser (chat_id allowed)
-      _streamSSE(data, streamController, messageId);
     }
 
     return (
@@ -3032,9 +3024,8 @@ class ApiService {
       }
     } catch (_) {}
   }
-
-  // SSE streaming with persistent background support - Main Implementation
-  void _streamSSE(
+  // SSE helpers removed: background task flow is the only path now.
+  /* void _streamSSE(
     Map<String, dynamic> data,
     StreamController<String> streamController,
     String messageId,
@@ -3690,6 +3681,7 @@ class ApiService {
     }
   }
 
+  */
   // Legacy Socket.IO and older SSE methods removed
 
   // File upload for RAG

lib/core/services/share_receiver_service.dart

@@ -50,9 +50,9 @@ final shareReceiverInitializerProvider = Provider<void>((ref) {
   // React when auth/model changes to process a queued share
   ref.listen<AuthNavigationState>(
     authNavigationStateProvider,
-    (_, __) => maybeProcessPending(),
+    (prev, next) => maybeProcessPending(),
   );
-  ref.listen(selectedModelProvider, (_, __) => maybeProcessPending());
+  ref.listen(selectedModelProvider, (prev, next) => maybeProcessPending());
   // Also poll once shortly after navigation settles to ensure ChatPage is ready
   Future.delayed(const Duration(milliseconds: 150), () => maybeProcessPending());
 

lib/core/utils/reasoning_parser.dart

@@ -1,7 +1,7 @@
-/// Utility class for parsing and extracting reasoning/thinking content from messages
+/// Utility class for parsing and extracting reasoning/thinking content from messages.
 class ReasoningParser {
-  /// Default tag pairs to detect raw reasoning blocks when providers don't emit <details>
-  /// This mirrors Open WebUI defaults: <think>...</think>, <reasoning>...</reasoning>
+  /// Default tag pairs to detect raw reasoning blocks when providers don't emit `<details>`.
+  /// This mirrors Open WebUI defaults: `<think>...</think>`, `<reasoning>...</reasoning>`.
   static const List<List<String>> defaultReasoningTagPairs = <List<String>>[
     ['<think>', '</think>'],
     ['<reasoning>', '</reasoning>'],
@@ -9,8 +9,8 @@ class ReasoningParser {
 
   /// Parses a message and extracts reasoning content
   /// Supports:
-  /// - <details type="reasoning" ...> blocks (server-emitted)
-  /// - Raw tag pairs like <think>...</think> or <reasoning>...</reasoning>
+  /// - `<details type="reasoning" ...>` blocks (server-emitted)
+  /// - Raw tag pairs like `<think>...</think>` or `<reasoning>...</reasoning>`
   /// - Optional custom tag pair override
   static ReasoningContent? parseReasoningContent(
     String content, {
@@ -19,7 +19,7 @@ class ReasoningParser {
   }) {
     if (content.isEmpty) return null;
 
-    // 1) Prefer server-emitted <details type="reasoning"> blocks
+    // 1) Prefer server-emitted `<details type="reasoning">` blocks
     final detailsRegex = RegExp(
       r'<details\s+type="reasoning"(?:\s+done="(true|false)")?(?:\s+duration="(\d+)")?[^>]*>\s*<summary>([^<]*)<\/summary>\s*([\s\S]*?)<\/details>',
       multiLine: true,
@@ -44,7 +44,7 @@ class ReasoningParser {
       );
     }
 
-    // 2) Handle partially streamed <details> (opening present, no closing yet)
+    // 2) Handle partially streamed `<details>` (opening present, no closing yet)
     final openingIdx = content.indexOf('<details type="reasoning"');
     if (openingIdx >= 0 && !content.contains('</details>')) {
       final after = content.substring(openingIdx);
@@ -80,7 +80,7 @@ class ReasoningParser {
     for (final pair in tagPairs) {
       final start = RegExp.escape(pair[0]);
       final end = RegExp.escape(pair[1]);
-      final tagRegex = RegExp('($start)([\n\r\s\S]*?)($end)', multiLine: true, dotAll: true);
+      final tagRegex = RegExp('($start)([\s\S]*?)($end)', multiLine: true, dotAll: true);
       final match = tagRegex.firstMatch(content);
       if (match != null) {
         final reasoning = (match.group(2) ?? '').trim();

lib/core/utils/tool_calls_parser.dart

@@ -32,7 +32,7 @@ class ToolCallsContent {
   });
 }
 
-/// Utility to parse <details type="tool_calls"> blocks from content
+/// Utility to parse `<details type="tool_calls">` blocks from content.
 class ToolCallsParser {
   static String _unescapeHtml(String s) {
     return s
@@ -135,7 +135,7 @@ class ToolCallsParser {
               done: done,
               arguments: args,
               result: result,
-              files: (files is List) ? files as List : null,
+              files: (files is List) ? files : null,
             ),
           ),
         );
@@ -230,10 +230,10 @@ class ToolCallsParser {
     if (value == null) return '';
     try {
       final pretty = const JsonEncoder.withIndent('  ').convert(value);
-      return pretty.length > max ? pretty.substring(0, max) + '\n…' : pretty;
+      return pretty.length > max ? '${pretty.substring(0, max)}\n…' : pretty;
     } catch (_) {
       final raw = value.toString();
-      return raw.length > max ? raw.substring(0, max) + '…' : raw;
+      return raw.length > max ? '${raw.substring(0, max)}…' : raw;
     }
   }
 }