fix: auto-fix code issues (cron)

- 修复重复导入/字段
- 修复异常处理
- 修复PEP8格式问题
- 添加类型注解
- 修复重复函数定义 (health_check, create_webhook_endpoint, etc)
- 修复未定义名称 (SearchOperator, TenantTier, Query, Body, logger)
- 修复 workflow_manager.py 的类定义重复问题
- 添加缺失的导入

backend/test_multimodal.py

@@ -19,8 +19,7 @@ print("\n1. 测试模块导入...")
 
 try:
     from multimodal_processor import (
-        get_multimodal_processor, MultimodalProcessor,
-        VideoProcessingResult, VideoFrame
+        get_multimodal_processor
     )
     print("   ✓ multimodal_processor 导入成功")
 except ImportError as e:
@@ -28,8 +27,7 @@ except ImportError as e:
 
 try:
     from image_processor import (
-        get_image_processor, ImageProcessor,
-        ImageProcessingResult, ImageEntity, ImageRelation
+        get_image_processor
     )
     print("   ✓ image_processor 导入成功")
 except ImportError as e:
@@ -37,8 +35,7 @@ except ImportError as e:
 
 try:
     from multimodal_entity_linker import (
-        get_multimodal_entity_linker, MultimodalEntityLinker,
-        MultimodalEntity, EntityLink, AlignmentResult, FusionResult
+        get_multimodal_entity_linker
     )
     print("   ✓ multimodal_entity_linker 导入成功")
 except ImportError as e:
@@ -74,21 +71,21 @@ print("\n3. 测试实体关联功能...")
 
 try:
     linker = get_multimodal_entity_linker()
-    
+
     # 测试字符串相似度
     sim = linker.calculate_string_similarity("Project Alpha", "Project Alpha")
     assert sim == 1.0, "完全匹配应该返回1.0"
     print(f"   ✓ 字符串相似度计算正常 (完全匹配: {sim})")
-    
+
     sim = linker.calculate_string_similarity("K8s", "Kubernetes")
     print(f"   ✓ 字符串相似度计算正常 (不同字符串: {sim:.2f})")
-    
+
     # 测试实体相似度
     entity1 = {"name": "Project Alpha", "type": "PROJECT", "definition": "核心项目"}
     entity2 = {"name": "Project Alpha", "type": "PROJECT", "definition": "主要项目"}
     sim, match_type = linker.calculate_entity_similarity(entity1, entity2)
     print(f"   ✓ 实体相似度计算正常 (相似度: {sim:.2f}, 类型: {match_type})")
-    
+
 except Exception as e:
     print(f"   ✗ 实体关联功能测试失败: {e}")
 
@@ -97,11 +94,11 @@ print("\n4. 测试图片处理器功能...")
 
 try:
     processor = get_image_processor()
-    
+
     # 测试图片类型检测（使用模拟数据）
     print(f"   ✓ 支持的图片类型: {list(processor.IMAGE_TYPES.keys())}")
     print(f"   ✓ 图片类型描述: {processor.IMAGE_TYPES}")
-    
+
 except Exception as e:
     print(f"   ✗ 图片处理器功能测试失败: {e}")
 
@@ -110,11 +107,11 @@ print("\n5. 测试视频处理器配置...")
 
 try:
     processor = get_multimodal_processor()
-    
+
     print(f"   ✓ 视频目录: {processor.video_dir}")
     print(f"   ✓ 帧目录: {processor.frames_dir}")
     print(f"   ✓ 音频目录: {processor.audio_dir}")
-    
+
     # 检查目录是否存在
     for dir_name, dir_path in [
         ("视频", processor.video_dir),
@@ -125,7 +122,7 @@ try:
             print(f"   ✓ {dir_name}目录存在: {dir_path}")
         else:
             print(f"   ✗ {dir_name}目录不存在: {dir_path}")
-    
+
 except Exception as e:
     print(f"   ✗ 视频处理器配置测试失败: {e}")
 
@@ -135,20 +132,20 @@ print("\n6. 测试数据库多模态方法...")
 try:
     from db_manager import get_db_manager
     db = get_db_manager()
-    
+
     # 检查多模态表是否存在
     conn = db.get_conn()
     tables = ['videos', 'video_frames', 'images', 'multimodal_mentions', 'multimodal_entity_links']
-    
+
     for table in tables:
         try:
             conn.execute(f"SELECT 1 FROM {table} LIMIT 1")
             print(f"   ✓ 表 '{table}' 存在")
         except Exception as e:
             print(f"   ✗ 表 '{table}' 不存在或无法访问: {e}")
-    
+
     conn.close()
-    
+
 except Exception as e:
     print(f"   ✗ 数据库多模态方法测试失败: {e}")