feat(ai-scribe): Fix some comments of coderabbit

lib/features/base/mixin/ai_scribe_mixin.dart

@@ -27,6 +27,13 @@ mixin AiScribeMixin {
 
       if (scribeEndpoint == null || scribeEndpoint.isEmpty) return;
 
+      // Validate endpoint format
+      if (Uri.tryParse(scribeEndpoint)?.hasAbsolutePath != true) {
+        logError(
+            'AiScribeMixin::injectAIScribeBindings(): Invalid endpoint format: $scribeEndpoint');
+        return;
+      }
+
       AIScribeBindings(scribeEndpoint).dependencies();
     } catch (e) {
       logError('AiScribeMixin::injectAIScribeBindings(): $e');

lib/features/home/domain/extensions/session_extensions.dart

@@ -35,7 +35,7 @@ extension SessionExtensions on Session {
     linagoraDownloadAllCapability: DownloadAllCapability.deserialize,
     capabilityServerSettings: SettingsCapability.deserialize,
     linagoraSaaSCapability: SaaSAccountCapability.deserialize,
-    AiScribeConstants.aiCapability: AICapability.deserialize,
+    AiScribeConstants.aiCapability: AICapability.fromJson,
   };
 
   Map<String, dynamic> toJson() {