feat: 添加 AI 审核模块

- 新增 apps/core/ai_audit.py AI 审核服务
- 新增 apps/core/views.py API 视图
- 新增 apps/core/urls.py URL 路由
- 更新 config/urls.py 注册 AI 审核 API
- 支持文章/评论/服务的自动审核
- 包含敏感词检测、广告检测、内容质量评估

backend/apps/core/views.py

@@ -0,0 +1,124 @@
+"""
+AI 审核 API 视图
+"""
+from rest_framework import viewsets, permissions, status
+from rest_framework.decorators import api_view, permission_classes
+from rest_framework.response import Response
+from rest_framework.permissions import IsAuthenticated, IsAdminUser
+
+from .ai_audit import AIAuditService
+
+
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+def audit_article(request):
+    """
+    审核文章
+    
+    请求体:
+    {
+        "title": "文章标题",
+        "content": "文章内容"
+    }
+    
+    返回:
+    {
+        "approved": true/false,
+        "reason": "审核结果说明",
+        "details": {...}
+    }
+    """
+    title = request.data.get('title', '')
+    content = request.data.get('content', '')
+    
+    if not title or not content:
+        return Response(
+            {'error': '标题和内容不能为空'},
+            status=status.HTTP_400_BAD_REQUEST
+        )
+    
+    result = AIAuditService.audit_article(title, content)
+    
+    return Response(result)
+
+
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+def audit_comment(request):
+    """
+    审核评论
+    
+    请求体:
+    {
+        "content": "评论内容"
+    }
+    
+    返回:
+    {
+        "approved": true/false,
+        "reason": "审核结果说明",
+        "details": {...}
+    }
+    """
+    content = request.data.get('content', '')
+    
+    if not content:
+        return Response(
+            {'error': '评论内容不能为空'},
+            status=status.HTTP_400_BAD_REQUEST
+        )
+    
+    result = AIAuditService.audit_comment(content)
+    
+    return Response(result)
+
+
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+def audit_service(request):
+    """
+    审核特色服务
+    
+    请求体:
+    {
+        "name": "服务名称",
+        "description": "服务描述"
+    }
+    
+    返回:
+    {
+        "approved": true/false,
+        "reason": "审核结果说明",
+        "details": {...}
+    }
+    """
+    name = request.data.get('name', '')
+    description = request.data.get('description', '')
+    
+    if not name or not description:
+        return Response(
+            {'error': '服务名称和描述不能为空'},
+            status=status.HTTP_400_BAD_REQUEST
+        )
+    
+    result = AIAuditService.audit_service(name, description)
+    
+    return Response(result)
+
+
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+def audit_status(request):
+    """
+    获取 AI 审核服务状态
+    """
+    return Response({
+        'status': 'active',
+        'service': 'AI Audit Service',
+        'version': '1.0.0',
+        'features': [
+            '敏感词检测',
+            '广告检测',
+            '内容质量评估',
+        ]
+    })