diff --git a/auto_fix_code.py b/auto_fix_code.py
new file mode 100644
index 0000000..b0e6043
--- /dev/null
+++ b/auto_fix_code.py
@@ -0,0 +1,192 @@
+#!/usr/bin/env python3
+"""
+InsightFlow 代码自动修复脚本 - 增强版
+自动修复代码中的常见问题
+"""
+
+import json
+import os
+import re
+import subprocess
+from pathlib import Path
+
+
+def run_ruff_check(directory: str) -> list[dict]:
+    """运行 ruff 检查并返回问题列表"""
+    try:
+        result = subprocess.run(
+            ["ruff", "check", "--select=E,W,F,I", "--output-format=json", directory],
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+        if result.stdout:
+            return json.loads(result.stdout)
+        return []
+    except Exception as e:
+        print(f"Ruff check failed: {e}")
+        return []
+
+
+def fix_bare_except(content: str) -> str:
+    """修复裸异常捕获 - 将 bare except: 改为 except Exception:"""
+    pattern = r'except\s*:\s*\n'
+    replacement = 'except Exception:\n'
+    return re.sub(pattern, replacement, content)
+
+
+def fix_undefined_names(content: str, filepath: str) -> str:
+    """修复未定义的名称"""
+    lines = content.split('\n')
+    modified = False
+    
+    import_map = {
+        'ExportEntity': 'from export_manager import ExportEntity',
+        'ExportRelation': 'from export_manager import ExportRelation',
+        'ExportTranscript': 'from export_manager import ExportTranscript',
+        'WorkflowManager': 'from workflow_manager import WorkflowManager',
+        'PluginManager': 'from plugin_manager import PluginManager',
+        'OpsManager': 'from ops_manager import OpsManager',
+        'urllib': 'import urllib.parse',
+    }
+    
+    undefined_names = set()
+    for name, import_stmt in import_map.items():
+        if name in content and import_stmt not in content:
+            undefined_names.add((name, import_stmt))
+    
+    if undefined_names:
+        import_idx = 0
+        for i, line in enumerate(lines):
+            if line.startswith('import ') or line.startswith('from '):
+                import_idx = i + 1
+        
+        for name, import_stmt in sorted(undefined_names):
+            lines.insert(import_idx, import_stmt)
+            import_idx += 1
+            modified = True
+    
+    if modified:
+        return '\n'.join(lines)
+    return content
+
+
+def fix_file(filepath: str, issues: list[dict]) -> tuple[bool, list[str], list[str]]:
+    """修复单个文件的问题"""
+    with open(filepath, 'r', encoding='utf-8') as f:
+        original_content = f.read()
+    
+    content = original_content
+    fixed_issues = []
+    manual_fix_needed = []
+    
+    for issue in issues:
+        code = issue.get('code', '')
+        message = issue.get('message', '')
+        line_num = issue['location']['row']
+        
+        if code == 'F821':
+            content = fix_undefined_names(content, filepath)
+            if content != original_content:
+                fixed_issues.append(f"F821 - {message} (line {line_num})")
+            else:
+                manual_fix_needed.append(f"F821 - {message} (line {line_num})")
+        elif code == 'E501':
+            manual_fix_needed.append(f"E501 (line {line_num})")
+    
+    content = fix_bare_except(content)
+    
+    if content != original_content:
+        with open(filepath, 'w', encoding='utf-8') as f:
+            f.write(content)
+        return True, fixed_issues, manual_fix_needed
+    
+    return False, fixed_issues, manual_fix_needed
+
+
+def main():
+    base_dir = Path("/root/.openclaw/workspace/projects/insightflow")
+    backend_dir = base_dir / "backend"
+    
+    print("=" * 60)
+    print("InsightFlow 代码自动修复")
+    print("=" * 60)
+    
+    print("\n1. 扫描代码问题...")
+    issues = run_ruff_check(str(backend_dir))
+    
+    issues_by_file = {}
+    for issue in issues:
+        filepath = issue.get('filename', '')
+        if filepath not in issues_by_file:
+            issues_by_file[filepath] = []
+        issues_by_file[filepath].append(issue)
+    
+    print(f"   发现 {len(issues)} 个问题，分布在 {len(issues_by_file)} 个文件中")
+    
+    issue_types = {}
+    for issue in issues:
+        code = issue.get('code', 'UNKNOWN')
+        issue_types[code] = issue_types.get(code, 0) + 1
+    
+    print("\n2. 问题类型统计:")
+    for code, count in sorted(issue_types.items(), key=lambda x: -x[1]):
+        print(f"   - {code}: {count} 个")
+    
+    print("\n3. 尝试自动修复...")
+    fixed_files = []
+    all_fixed_issues = []
+    all_manual_fixes = []
+    
+    for filepath, file_issues in issues_by_file.items():
+        if not os.path.exists(filepath):
+            continue
+        
+        modified, fixed, manual = fix_file(filepath, file_issues)
+        if modified:
+            fixed_files.append(filepath)
+        all_fixed_issues.extend(fixed)
+        all_manual_fixes.extend([(filepath, m) for m in manual])
+    
+    print(f"   直接修改了 {len(fixed_files)} 个文件")
+    print(f"   自动修复了 {len(all_fixed_issues)} 个问题")
+    
+    print("\n4. 运行 ruff 自动格式化...")
+    try:
+        subprocess.run(
+            ["ruff", "format", str(backend_dir)],
+            capture_output=True,
+            check=False,
+        )
+        print("   格式化完成")
+    except Exception as e:
+        print(f"   格式化失败: {e}")
+    
+    print("\n5. 再次检查...")
+    remaining_issues = run_ruff_check(str(backend_dir))
+    print(f"   剩余 {len(remaining_issues)} 个问题需要手动处理")
+    
+    report = {
+        'total_issues': len(issues),
+        'fixed_files': len(fixed_files),
+        'fixed_issues': len(all_fixed_issues),
+        'remaining_issues': len(remaining_issues),
+        'issue_types': issue_types,
+        'manual_fix_needed': all_manual_fixes[:30],
+    }
+    
+    return report
+
+
+if __name__ == "__main__":
+    report = main()
+    print("\n" + "=" * 60)
+    print("修复报告")
+    print("=" * 60)
+    print(f"总问题数: {report['total_issues']}")
+    print(f"修复文件数: {report['fixed_files']}")
+    print(f"自动修复问题数: {report['fixed_issues']}")
+    print(f"剩余问题数: {report['remaining_issues']}")
+    print(f"\n需要手动处理的问题 (前30个):")
+    for filepath, issue in report['manual_fix_needed']:
+        print(f"  - {filepath}: {issue}")
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diff --git a/backend/__pycache__/tingwu_client.cpython-312.pyc b/backend/__pycache__/tingwu_client.cpython-312.pyc
deleted file mode 100644
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diff --git a/backend/__pycache__/workflow_manager.cpython-312.pyc b/backend/__pycache__/workflow_manager.cpython-312.pyc
deleted file mode 100644
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diff --git a/backend/db_manager.py b/backend/db_manager.py
index 6651f42..763bd14 100644
--- a/backend/db_manager.py
+++ b/backend/db_manager.py
@@ -334,14 +334,15 @@ class DatabaseManager:
             """INSERT INTO entity_mentions
             (id, entity_id, transcript_id, start_pos, end_pos, text_snippet, confidence)
             VALUES (?, ?, ?, ?, ?, ?, ?)""",
-            (mention.id,
-             mention.entity_id,
-             mention.transcript_id,
-             mention.start_pos,
-             mention.end_pos,
-             mention.text_snippet,
-             mention.confidence,
-             ),
+            (
+                mention.id,
+                mention.entity_id,
+                mention.transcript_id,
+                mention.start_pos,
+                mention.end_pos,
+                mention.text_snippet,
+                mention.confidence,
+            ),
         )
         conn.commit()
         conn.close()
@@ -372,12 +373,7 @@ class DatabaseManager:
             """INSERT INTO transcripts
             (id, project_id, filename, full_text, type, created_at)
             VALUES (?, ?, ?, ?, ?, ?)""",
-            (transcript_id,
-             project_id,
-             filename,
-             full_text,
-             transcript_type,
-             now),
+            (transcript_id, project_id, filename, full_text, transcript_type, now),
         )
         conn.commit()
         conn.close()
diff --git a/backend/document_processor.py b/backend/document_processor.py
index 7b18a28..164a4ec 100644
--- a/backend/document_processor.py
+++ b/backend/document_processor.py
@@ -156,6 +156,7 @@ class DocumentProcessor:
         ext = os.path.splitext(filename.lower())[1]
         return ext in self.supported_formats
 
+
 # 简单的文本提取器（不需要外部依赖）
 
 
diff --git a/backend/entity_aligner.py b/backend/entity_aligner.py
index 42f6586..3bad4cf 100644
--- a/backend/entity_aligner.py
+++ b/backend/entity_aligner.py
@@ -318,6 +318,7 @@ class EntityAligner:
 
         return []
 
+
 # 简单的字符串相似度计算（不使用 embedding）
 
 
diff --git a/backend/main.py b/backend/main.py
index 5dfc726..71025dc 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -34,6 +34,11 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse, PlainTextResponse, StreamingResponse
 from fastapi.staticfiles import StaticFiles
 from pydantic import BaseModel, Field
+from export_manager import ExportEntity
+from export_manager import ExportRelation
+from export_manager import ExportTranscript
+from ops_manager import OpsManager
+from plugin_manager import PluginManager
 
 # Configure logger
 logger = logging.getLogger(__name__)
@@ -563,6 +568,7 @@ async def rate_limit_middleware(request: Request, call_next):
 
     return response
 
+
 # 添加限流中间件
 app.middleware("http")(rate_limit_middleware)
 
@@ -645,6 +651,7 @@ class RateLimitStatus(BaseModel):
     reset_time: int
     window: str
 
+
 # 原有模型（保留）
 
 
@@ -713,6 +720,7 @@ class GlossaryTermCreate(BaseModel):
     term: str
     pronunciation: str | None = ""
 
+
 # ==================== Phase 7: Workflow Pydantic Models ====================
 
 
@@ -914,6 +922,7 @@ def get_doc_processor() -> "DocumentProcessor | None":
 # Phase 7 Task 4: Collaboration Manager singleton
 _collaboration_manager: "CollaborationManager | None" = None
 
+
 # Forward declaration for type hints
 class CollaborationManager:
     pass
@@ -926,6 +935,7 @@ def get_collab_manager() -> "CollaborationManager | None":
         _collaboration_manager = get_collaboration_manager(db)
     return _collaboration_manager
 
+
 # Phase 2: Entity Edit API
 
 
@@ -997,6 +1007,7 @@ async def merge_entities_endpoint(
         },
     }
 
+
 # Phase 2: Relation Edit API
 
 
@@ -1063,6 +1074,7 @@ async def update_relation(relation_id: str, relation: RelationCreate, _=Depends(
         "success": True,
     }
 
+
 # Phase 2: Transcript Edit API
 
 
@@ -1103,6 +1115,7 @@ async def update_transcript(
         "success": True,
     }
 
+
 # Phase 2: Manual Entity Creation
 
 
@@ -1290,6 +1303,7 @@ def align_entity(project_id: str, name: str, db, definition: str = "") -> Option
 
     return None
 
+
 # API Endpoints
 
 
@@ -1427,6 +1441,7 @@ async def upload_audio(project_id: str, file: UploadFile = File(...), _=Depends(
         created_at=datetime.now().isoformat(),
     )
 
+
 # Phase 3: Document Upload API
 
 
@@ -1549,6 +1564,7 @@ async def upload_document(project_id: str, file: UploadFile = File(...), _=Depen
         "created_at": datetime.now().isoformat(),
     }
 
+
 # Phase 3: Knowledge Base API
 
 
@@ -1644,6 +1660,7 @@ async def get_knowledge_base(project_id: str, _=Depends(verify_api_key)):
         ],
     }
 
+
 # Phase 3: Glossary API
 
 
@@ -1686,6 +1703,7 @@ async def delete_glossary_term(term_id: str, _=Depends(verify_api_key)):
     db.delete_glossary_term(term_id)
     return {"success": True}
 
+
 # Phase 3: Entity Alignment API
 
 
@@ -1816,6 +1834,7 @@ async def get_entity_mentions(entity_id: str, _=Depends(verify_api_key)):
         for m in mentions
     ]
 
+
 # Health check - Legacy endpoint (deprecated, use /api/v1/health)
 
 
@@ -1838,6 +1857,7 @@ async def legacy_health_check():
         "plugin_manager_available": PLUGIN_MANAGER_AVAILABLE,
     }
 
+
 # ==================== Phase 4: Agent 助手 API ====================
 
 
@@ -2027,6 +2047,7 @@ async def agent_suggest(project_id: str, _=Depends(verify_api_key)):
 
     return {"suggestions": []}
 
+
 # ==================== Phase 4: 知识溯源 API ====================
 
 
@@ -2106,6 +2127,7 @@ async def get_entity_evolution(entity_id: str, _=Depends(verify_api_key)):
         ],
     }
 
+
 # ==================== Phase 4: 实体管理增强 API ====================
 
 
@@ -2121,6 +2143,7 @@ async def search_entities(project_id: str, q: str, _=Depends(verify_api_key)):
         {"id": e.id, "name": e.name, "type": e.type, "definition": e.definition} for e in entities
     ]
 
+
 # ==================== Phase 5: 时间线视图 API ====================
 
 
@@ -2183,6 +2206,7 @@ async def get_entity_timeline(entity_id: str, _=Depends(verify_api_key)):
         "total_count": len(timeline),
     }
 
+
 # ==================== Phase 5: 知识推理与问答增强 API ====================
 
 
@@ -2336,6 +2360,7 @@ async def project_summary(project_id: str, req: SummaryRequest, _=Depends(verify
 
     return {"project_id": project_id, "summary_type": req.summary_type, **summary**summary}
 
+
 # ==================== Phase 5: 实体属性扩展 API ====================
 
 
@@ -2372,6 +2397,7 @@ class EntityAttributeBatchSet(BaseModel):
     attributes: list[EntityAttributeSet]
     change_reason: str | None = ""
 
+
 # 属性模板管理 API
 
 
@@ -2488,6 +2514,7 @@ async def delete_attribute_template_endpoint(template_id: str, _=Depends(verify_
 
     return {"success": True, "message": f"Template {template_id} deleted"}
 
+
 # 实体属性值管理 API
 
 
@@ -2675,6 +2702,7 @@ async def delete_entity_attribute_endpoint(
 
     return {"success": True, "message": "Attribute deleted"}
 
+
 # 属性历史 API
 
 
@@ -2728,6 +2756,7 @@ async def get_template_history_endpoint(
         for h in history
     ]
 
+
 # 属性筛选搜索 API
 
 
@@ -2766,6 +2795,7 @@ async def search_entities_by_attributes_endpoint(
         for e in entities
     ]
 
+
 # ==================== 导出功能 API ====================
 
 
@@ -3213,6 +3243,7 @@ async def export_transcript_markdown_endpoint(transcript_id: str, _=Depends(veri
         },
     )
 
+
 # ==================== Neo4j Graph Database API ====================
 
 
@@ -3470,6 +3501,7 @@ async def get_subgraph(request: GraphQueryRequest, _=Depends(verify_api_key)):
     subgraph = manager.get_subgraph(request.entity_ids, request.depth)
     return subgraph
 
+
 # ==================== Phase 6: API Key Management Endpoints ====================
 
 
@@ -3729,6 +3761,7 @@ async def get_rate_limit_status(request: Request, _=Depends(verify_api_key)):
         limit=limit, remaining=info.remaining, reset_time=info.reset_time, window="minute"
     )
 
+
 # ==================== Phase 6: System Endpoints ====================
 
 
@@ -3767,6 +3800,7 @@ async def system_status():
 
     return status
 
+
 # ==================== Phase 7: Workflow Automation Endpoints ====================
 
 # Workflow Manager singleton
@@ -4065,6 +4099,7 @@ async def get_workflow_stats_endpoint(workflow_id: str, days: int = 30, _=Depend
 
     return WorkflowStatsResponse(**stats)
 
+
 # ==================== Phase 7: Webhook Endpoints ====================
 
 
@@ -4251,6 +4286,7 @@ async def test_webhook_endpoint(webhook_id: str, _=Depends(verify_api_key)):
     else:
         raise HTTPException(status_code=400, detail="Webhook test failed")
 
+
 # ==================== Phase 7: Multimodal Support Endpoints ====================
 
 # Pydantic Models for Multimodal API
@@ -5124,6 +5160,7 @@ async def suggest_multimodal_merges_endpoint(project_id: str, _=Depends(verify_a
         ],
     }
 
+
 # ==================== Phase 7: Multimodal Support API ====================
 
 
@@ -5163,6 +5200,7 @@ class MultimodalProfileResponse(BaseModel):
     entity_id: str
     entity_name: str
 
+
 # ==================== Phase 7 Task 7: Plugin Management Pydantic Models ====================
 
 
@@ -5342,6 +5380,7 @@ def get_plugin_manager_instance() -> "PluginManager | None":
         _plugin_manager_instance = get_plugin_manager(db)
     return _plugin_manager_instance
 
+
 # ==================== Phase 7 Task 7: Plugin Management Endpoints ====================
 
 
@@ -5490,6 +5529,7 @@ async def delete_plugin_endpoint(plugin_id: str, _=Depends(verify_api_key)):
 
     return {"success": True, "message": "Plugin deleted successfully"}
 
+
 # ==================== Phase 7 Task 7: Chrome Extension Endpoints ====================
 
 
@@ -5621,6 +5661,7 @@ async def chrome_import_webpage_endpoint(request: ChromeExtensionImportRequest):
 
     return result
 
+
 # ==================== Phase 7 Task 7: Bot Endpoints ====================
 
 
@@ -5813,6 +5854,7 @@ async def send_bot_message_endpoint(
 
     return {"success": success, "message": "Message sent" if success else "Failed to send message"}
 
+
 # ==================== Phase 7 Task 7: Integration Endpoints ====================
 
 
@@ -5997,6 +6039,7 @@ async def trigger_integration_endpoint(
         "message": "Triggered successfully" if success else "Trigger failed",
     }
 
+
 # ==================== Phase 7 Task 7: WebDAV Endpoints ====================
 
 
@@ -6168,6 +6211,7 @@ async def get_openapi():
         tags=app.openapi_tags,
     )
 
+
 # Serve frontend - MUST be last to not override API routes
 app.mount("/", StaticFiles(directory="frontend", html=True), name="frontend")
 
@@ -6375,6 +6419,7 @@ async def regenerate_plugin_key(plugin_id: str, api_key: str = Depends(verify_ap
 
     return {"success": True, "api_key": new_key}
 
+
 # ==================== Chrome Extension API ====================
 
 
@@ -6449,6 +6494,7 @@ URL: {request.url}
         message="Content saved successfully",
     )
 
+
 # ==================== Bot API ====================
 
 
@@ -6517,6 +6563,7 @@ async def list_bot_sessions(
         for s in sessions
     ]
 
+
 # ==================== Webhook Integration API ====================
 
 
@@ -6636,6 +6683,7 @@ async def receive_webhook(
 
     return {"success": True, "endpoint_id": endpoint.id, "received_at": datetime.now().isoformat()}
 
+
 # ==================== WebDAV API ====================
 
 
@@ -6759,6 +6807,7 @@ async def trigger_webdav_sync(sync_id: str, api_key: str = Depends(verify_api_ke
 
     return {"success": True, "sync_id": sync_id, "status": "running", "message": "Sync started"}
 
+
 # ==================== Plugin Activity Logs ====================
 
 
@@ -6789,6 +6838,7 @@ async def get_plugin_logs(
         ]
     }
 
+
 # ==================== Phase 7 Task 3: Security & Compliance API ====================
 
 # Pydantic models for security API
@@ -6905,6 +6955,7 @@ class AccessRequestResponse(BaseModel):
     expires_at: str | None = None
     created_at: str
 
+
 # ==================== Audit Logs API ====================
 
 
@@ -6970,6 +7021,7 @@ async def get_audit_stats(
 
     return AuditStatsResponse(**stats)
 
+
 # ==================== Encryption API ====================
 
 
@@ -7057,6 +7109,7 @@ async def get_encryption_config(project_id: str, api_key: str = Depends(verify_a
         updated_at=config.updated_at,
     )
 
+
 # ==================== Data Masking API ====================
 
 
@@ -7232,6 +7285,7 @@ async def apply_masking(
         original_text=request.text, masked_text=masked_text, applied_rules=applied_rules
     )
 
+
 # ==================== Data Access Policy API ====================
 
 
@@ -7330,6 +7384,7 @@ async def check_access_permission(
 
     return {"allowed": allowed, "reason": reason if not allowed else None}
 
+
 # ==================== Access Request API ====================
 
 
@@ -7429,6 +7484,7 @@ async def reject_access_request(
         created_at=access_request.created_at,
     )
 
+
 # ==========================================
 # Phase 7 Task 4: 协作与共享 API
 # ==========================================
@@ -7476,6 +7532,7 @@ class TeamMemberInvite(BaseModel):
 class TeamMemberRoleUpdate(BaseModel):
     role: str
 
+
 # ----- 项目分享 -----
 
 
@@ -7615,6 +7672,7 @@ async def revoke_share_link(share_id: str, revoked_by: str = "current_user"):
 
     return {"success": True, "message": "Share link revoked"}
 
+
 # ----- 评论和批注 -----
 
 
@@ -7752,6 +7810,7 @@ async def delete_comment(comment_id: str, deleted_by: str = "current_user"):
 
     return {"success": True, "message": "Comment deleted"}
 
+
 # ----- 变更历史 -----
 
 
@@ -7845,6 +7904,7 @@ async def revert_change(record_id: str, reverted_by: str = "current_user"):
 
     return {"success": True, "message": "Change reverted"}
 
+
 # ----- 团队成员 -----
 
 
@@ -7956,6 +8016,7 @@ async def check_project_permissions(project_id: str, user_id: str = "current_use
 
     return {"has_access": True, "role": user_member.role, "permissions": user_member.permissions}
 
+
 # ==================== Phase 7 Task 6: Advanced Search & Discovery ====================
 
 
@@ -8144,6 +8205,7 @@ async def index_project_for_search(project_id: str, _=Depends(verify_api_key)):
     else:
         raise HTTPException(status_code=500, detail="Failed to index project")
 
+
 # ==================== Phase 7 Task 8: Performance & Scaling ====================
 
 
@@ -8329,6 +8391,7 @@ async def list_shards(_=Depends(verify_api_key)):
         ],
     }
 
+
 # ============================================
 # Phase 8: Multi-Tenant SaaS APIs
 # ============================================
@@ -8370,6 +8433,7 @@ class InviteMemberRequest(BaseModel):
 class UpdateMemberRequest(BaseModel):
     role: str | None = None
 
+
 # Tenant Management APIs
 
 
@@ -8481,6 +8545,7 @@ async def delete_tenant(tenant_id: str, _=Depends(verify_api_key)):
 
     return {"message": "Tenant deleted successfully"}
 
+
 # Domain Management APIs
 
 
@@ -8566,6 +8631,7 @@ async def remove_domain(tenant_id: str, domain_id: str, _=Depends(verify_api_key
 
     return {"message": "Domain removed successfully"}
 
+
 # Branding APIs
 
 
@@ -8641,6 +8707,7 @@ async def get_branding_css(tenant_id: str):
 
     return PlainTextResponse(content=css, media_type="text/css")
 
+
 # Member Management APIs
 
 
@@ -8730,6 +8797,7 @@ async def remove_member(tenant_id: str, member_id: str, _=Depends(verify_api_key
 
     return {"message": "Member removed successfully"}
 
+
 # Usage & Limits APIs
 
 
@@ -8762,6 +8830,7 @@ async def check_resource_limit(tenant_id: str, resource_type: str, _=Depends(ver
         "usage_percentage": round(current / limit * 100, 2) if limit > 0 else 0,
     }
 
+
 # Public tenant resolution API (for custom domains)
 
 
@@ -8837,6 +8906,7 @@ async def detailed_health_check():
 
     return health
 
+
 # ==================== Phase 8: Multi-Tenant SaaS API ====================
 
 # Pydantic Models for Tenant API
@@ -8960,6 +9030,7 @@ class TenantStatsResponse(BaseModel):
     api_calls_today: int
     api_calls_month: int
 
+
 # Tenant API Endpoints
 
 
@@ -9077,6 +9148,7 @@ async def delete_tenant_endpoint(tenant_id: str, _=Depends(verify_api_key)):
 
     return {"success": True, "message": f"Tenant {tenant_id} deleted"}
 
+
 # Tenant Domain API
 
 
@@ -9165,6 +9237,7 @@ async def remove_tenant_domain_endpoint(tenant_id: str, domain_id: str, _=Depend
 
     return {"success": True, "message": "Domain removed successfully"}
 
+
 # Tenant Branding API
 
 
@@ -9217,6 +9290,7 @@ async def get_tenant_theme_css_endpoint(tenant_id: str):
 
     return PlainTextResponse(content=branding.get_theme_css(), media_type="text/css")
 
+
 # Tenant Member API
 
 
@@ -9340,6 +9414,7 @@ async def remove_tenant_member_endpoint(
     except ValueError as e:
         raise HTTPException(status_code=403, detail=str(e))
 
+
 # Tenant Role API
 
 
@@ -9425,6 +9500,7 @@ async def list_tenant_permissions_endpoint(_=Depends(verify_api_key)):
         "permissions": [{"id": k, "name": v} for k, v in tenant_manager.PERMISSION_NAMES.items()]
     }
 
+
 # Tenant Resolution API
 
 
@@ -9462,6 +9538,7 @@ async def get_tenant_context_endpoint(tenant_id: str, _=Depends(verify_api_key))
 
     return context
 
+
 # ============================================
 # Phase 8 Task 2: Subscription & Billing APIs
 # ============================================
@@ -9518,6 +9595,7 @@ class CreateCheckoutSessionRequest(BaseModel):
     success_url: str = Field(..., description="支付成功回调URL")
     cancel_url: str = Field(..., description="支付取消回调URL")
 
+
 # Subscription Plan APIs
 
 
@@ -9578,6 +9656,7 @@ async def get_subscription_plan(plan_id: str, _=Depends(verify_api_key)):
         "created_at": plan.created_at.isoformat(),
     }
 
+
 # Subscription APIs
 
 
@@ -9716,6 +9795,7 @@ async def cancel_subscription(
     except (RuntimeError, ValueError, TypeError) as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+
 # Usage APIs
 
 
@@ -9765,6 +9845,7 @@ async def get_usage_summary(
 
     return summary
 
+
 # Payment APIs
 
 
@@ -9831,6 +9912,7 @@ async def get_payment(tenant_id: str, payment_id: str, _=Depends(verify_api_key)
         "created_at": payment.created_at.isoformat(),
     }
 
+
 # Invoice APIs
 
 
@@ -9901,6 +9983,7 @@ async def get_invoice(tenant_id: str, invoice_id: str, _=Depends(verify_api_key)
         "created_at": invoice.created_at.isoformat(),
     }
 
+
 # Refund APIs
 
 
@@ -10015,6 +10098,7 @@ async def process_refund(
     else:
         raise HTTPException(status_code=400, detail="Invalid action")
 
+
 # Billing History API
 
 
@@ -10055,6 +10139,7 @@ async def get_billing_history(
         "total": len(history),
     }
 
+
 # Payment Provider Integration APIs
 
 
@@ -10127,6 +10212,7 @@ async def create_wechat_order(
     except (RuntimeError, ValueError, TypeError) as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+
 # Webhook Handlers
 
 
@@ -10180,6 +10266,7 @@ async def wechat_webhook(request: Request):
     else:
         raise HTTPException(status_code=400, detail="Webhook processing failed")
 
+
 # ==================== Phase 8: Enterprise Features API ====================
 
 # Pydantic Models for Enterprise
@@ -10284,6 +10371,7 @@ class RetentionPolicyUpdate(BaseModel):
     archive_encryption: bool | None = None
     is_active: bool | None = None
 
+
 # SSO/SAML APIs
 
 
@@ -10465,6 +10553,7 @@ async def get_sso_metadata_endpoint(
         "slo_url": f"{base_url}/api/v1/sso/saml/{tenant_id}/slo",
     }
 
+
 # SCIM APIs
 
 
@@ -10600,6 +10689,7 @@ async def list_scim_users_endpoint(
         "total": len(users),
     }
 
+
 # Audit Log Export APIs
 
 
@@ -10740,6 +10830,7 @@ async def download_audit_export_endpoint(
         "expires_at": export.expires_at.isoformat() if export.expires_at else None,
     }
 
+
 # Data Retention Policy APIs
 
 
@@ -10950,6 +11041,7 @@ async def list_retention_jobs_endpoint(
         "total": len(jobs),
     }
 
+
 # ============================================
 # Phase 8 Task 7: Globalization & Localization API
 # ============================================
@@ -11015,6 +11107,7 @@ class ConvertTimezoneRequest(BaseModel):
     from_tz: str = Field(..., description="源时区")
     to_tz: str = Field(..., description="目标时区")
 
+
 # Translation APIs
 
 
@@ -11145,6 +11238,7 @@ async def list_translations(
         "total": len(translations),
     }
 
+
 # Language APIs
 
 
@@ -11205,6 +11299,7 @@ async def get_language(code: str):
         "calendar_type": lang.calendar_type,
     }
 
+
 # Data Center APIs
 
 
@@ -11331,6 +11426,7 @@ async def set_tenant_data_center(
         "created_at": mapping.created_at.isoformat(),
     }
 
+
 # Payment Method APIs
 
 
@@ -11381,6 +11477,7 @@ async def get_localized_payment_methods(
 
     return {"country_code": country_code, "language": language, "payment_methods": methods}
 
+
 # Country APIs
 
 
@@ -11442,6 +11539,7 @@ async def get_country(code: str):
         "vat_rate": country.vat_rate,
     }
 
+
 # Localization Settings APIs
 
 
@@ -11538,6 +11636,7 @@ async def update_localization_settings(
         "updated_at": settings.updated_at.isoformat(),
     }
 
+
 # Formatting APIs
 
 
@@ -11661,6 +11760,7 @@ async def get_calendar_info(
 
     return info
 
+
 # ============================================
 # Phase 8 Task 4: AI 能力增强 API
 # ============================================
@@ -11734,6 +11834,7 @@ class PredictionFeedbackRequest(BaseModel):
     actual_value: str
     is_correct: bool
 
+
 # 自定义模型管理 API
 
 
@@ -11909,6 +12010,7 @@ async def predict_with_custom_model(request: PredictRequest):
     except ValueError as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+
 # 多模态分析 API
 
 
@@ -11973,6 +12075,7 @@ async def list_multimodal_analyses(
         ]
     }
 
+
 # 知识图谱 RAG API
 
 
@@ -12063,6 +12166,7 @@ async def query_kg_rag(
     except ValueError as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+
 # 智能摘要 API
 
 
@@ -12113,6 +12217,7 @@ async def list_smart_summaries(
     # 这里需要从数据库查询，暂时返回空列表
     return {"summaries": []}
 
+
 # 预测模型 API
 
 
@@ -12302,6 +12407,7 @@ async def update_prediction_feedback(request: PredictionFeedbackRequest):
 
     return {"status": "success", "message": "Feedback updated"}
 
+
 # ==================== Phase 8 Task 5: Growth & Analytics Endpoints ====================
 
 # Pydantic Models for Growth API
@@ -12418,6 +12524,7 @@ def get_growth_manager_instance() -> "GrowthManager | None":
         _growth_manager = GrowthManager()
     return _growth_manager
 
+
 # ==================== 用户行为分析 API ====================
 
 
@@ -12514,6 +12621,7 @@ async def get_user_profile(tenant_id: str, user_id: str):
         "engagement_score": profile.engagement_score,
     }
 
+
 # ==================== 转化漏斗 API ====================
 
 
@@ -12592,6 +12700,7 @@ async def calculate_retention(
 
     return retention
 
+
 # ==================== A/B 测试 API ====================
 
 
@@ -12782,6 +12891,7 @@ async def stop_experiment_endpoint(experiment_id: str):
         "end_date": experiment.end_date.isoformat() if experiment.end_date else None,
     }
 
+
 # ==================== 邮件营销 API ====================
 
 
@@ -12959,6 +13069,7 @@ async def create_automation_workflow_endpoint(request: CreateAutomationWorkflowR
         "created_at": workflow.created_at,
     }
 
+
 # ==================== 推荐系统 API ====================
 
 
@@ -13101,6 +13212,7 @@ async def check_team_incentive_eligibility(tenant_id: str, current_tier: str, te
         ]
     }
 
+
 # Serve frontend - MUST be last to not override API routes
 
 # ============================================
@@ -13269,6 +13381,7 @@ def get_developer_ecosystem_manager_instance() -> "DeveloperEcosystemManager | N
         _developer_ecosystem_manager = DeveloperEcosystemManager()
     return _developer_ecosystem_manager
 
+
 # ==================== SDK Release & Management API ====================
 
 
@@ -13481,6 +13594,7 @@ async def add_sdk_version_endpoint(sdk_id: str, request: SDKVersionCreate):
         "created_at": version.created_at,
     }
 
+
 # ==================== Template Market API ====================
 
 
@@ -13733,6 +13847,7 @@ async def get_template_reviews_endpoint(
         ]
     }
 
+
 # ==================== Plugin Market API ====================
 
 
@@ -13985,6 +14100,7 @@ async def get_plugin_reviews_endpoint(
         ]
     }
 
+
 # ==================== Developer Revenue Sharing API ====================
 
 
@@ -14033,6 +14149,7 @@ async def get_developer_revenue_summary_endpoint(developer_id: str):
 
     return summary
 
+
 # ==================== Developer Profile & Management API ====================
 
 
@@ -14167,6 +14284,7 @@ async def update_developer_stats_endpoint(developer_id: str):
 
     return {"success": True, "message": "Developer stats updated"}
 
+
 # ==================== Code Examples API ====================
 
 
@@ -14284,6 +14402,7 @@ async def copy_code_example_endpoint(example_id: str):
 
     return {"success": True, "message": "Code copied"}
 
+
 # ==================== API Documentation API ====================
 
 
@@ -14331,6 +14450,7 @@ async def get_api_documentation_endpoint(doc_id: str):
         "generated_by": doc.generated_by,
     }
 
+
 # ==================== Developer Portal API ====================
 
 
@@ -14422,6 +14542,7 @@ async def get_portal_config_endpoint(config_id: str):
         "is_active": config.is_active,
     }
 
+
 # ==================== Phase 8 Task 8: Operations & Monitoring Endpoints ====================
 
 # Ops Manager singleton
@@ -14434,6 +14555,7 @@ def get_ops_manager_instance() -> "OpsManager | None":
         _ops_manager = get_ops_manager()
     return _ops_manager
 
+
 # Pydantic Models for Ops API
 
 
@@ -14562,6 +14684,7 @@ class BackupJobCreate(BaseModel):
     compression_enabled: bool = Field(default=True, description="是否压缩")
     storage_location: str | None = Field(default=None, description="存储位置")
 
+
 # Alert Rules API
 
 
@@ -14737,6 +14860,7 @@ async def delete_alert_rule_endpoint(rule_id: str, _=Depends(verify_api_key)):
 
     return {"success": True, "message": "Alert rule deleted"}
 
+
 # Alert Channels API
 
 
@@ -14819,6 +14943,7 @@ async def test_alert_channel_endpoint(channel_id: str, _=Depends(verify_api_key)
     else:
         raise HTTPException(status_code=400, detail="Failed to send test alert")
 
+
 # Alerts API
 
 
@@ -14893,6 +15018,7 @@ async def resolve_alert_endpoint(alert_id: str, _=Depends(verify_api_key)):
 
     return {"success": True, "message": "Alert resolved"}
 
+
 # Resource Metrics API
 
 
@@ -14960,6 +15086,7 @@ async def get_resource_metrics_endpoint(
         for m in metrics
     ]
 
+
 # Capacity Planning API
 
 
@@ -15026,6 +15153,7 @@ async def list_capacity_plans_endpoint(tenant_id: str, _=Depends(verify_api_key)
         for plan in plans
     ]
 
+
 # Auto Scaling API
 
 
@@ -15120,6 +15248,7 @@ async def list_scaling_events_endpoint(
         for event in events
     ]
 
+
 # Health Check API
 
 
@@ -15205,6 +15334,7 @@ async def execute_health_check_endpoint(check_id: str, _=Depends(verify_api_key)
         "checked_at": result.checked_at,
     }
 
+
 # Backup API
 
 
@@ -15311,6 +15441,7 @@ async def list_backup_records_endpoint(
         for record in records
     ]
 
+
 # Cost Optimization API
 
 
@@ -15447,5 +15578,6 @@ async def apply_cost_optimization_suggestion_endpoint(
         },
     }
 
+
 if __name__ == "__main__":
     uvicorn.run(app, host="0.0.0.0", port=8000)
diff --git a/backend/neo4j_manager.py b/backend/neo4j_manager.py
index 44d7a0c..45b8c57 100644
--- a/backend/neo4j_manager.py
+++ b/backend/neo4j_manager.py
@@ -988,6 +988,7 @@ def close_neo4j_manager() -> None:
         _neo4j_manager.close()
         _neo4j_manager = None
 
+
 # 便捷函数
 
 
diff --git a/backend/performance_manager.py b/backend/performance_manager.py
index 25a69ed..0b98a8e 100644
--- a/backend/performance_manager.py
+++ b/backend/performance_manager.py
@@ -139,6 +139,7 @@ class ShardInfo:
     created_at: str = ""
     last_accessed: str = ""
 
+
 # ==================== Redis 缓存层 ====================
 
 
@@ -598,6 +599,7 @@ class CacheManager:
 
         return count
 
+
 # ==================== 数据库分片 ====================
 
 
@@ -900,6 +902,7 @@ class DatabaseSharding:
             "message": "Rebalancing analysis completed",
         }
 
+
 # ==================== 异步任务队列 ====================
 
 
@@ -1284,6 +1287,7 @@ class TaskQueue:
             "backend": "celery" if self.use_celery else "memory",
         }
 
+
 # ==================== 性能监控 ====================
 
 
@@ -1603,6 +1607,7 @@ class PerformanceMonitor:
 
         return deleted
 
+
 # ==================== 性能装饰器 ====================
 
 
@@ -1678,6 +1683,7 @@ def monitored(monitor: PerformanceMonitor, metric_type: str, endpoint: str | Non
 
     return decorator
 
+
 # ==================== 性能管理器 ====================
 
 
diff --git a/backend/plugin_manager.py b/backend/plugin_manager.py
index da599db..2f70244 100644
--- a/backend/plugin_manager.py
+++ b/backend/plugin_manager.py
@@ -18,6 +18,8 @@ from enum import Enum
 from typing import Any
 
 import httpx
+from plugin_manager import PluginManager
+import urllib.parse
 
 # Constants
 UUID_LENGTH = 8  # UUID 截断长度
diff --git a/backend/rate_limiter.py b/backend/rate_limiter.py
index 29e44f5..58ce2ec 100644
--- a/backend/rate_limiter.py
+++ b/backend/rate_limiter.py
@@ -171,6 +171,7 @@ def get_rate_limiter() -> RateLimiter:
         _rate_limiter = RateLimiter()
     return _rate_limiter
 
+
 # 限流装饰器（用于函数级别限流）
 
 
diff --git a/backend/search_manager.py b/backend/search_manager.py
index a5260de..45e2343 100644
--- a/backend/search_manager.py
+++ b/backend/search_manager.py
@@ -174,6 +174,7 @@ class TextEmbedding:
     model_name: str
     created_at: str
 
+
 # ==================== 全文搜索 ====================
 
 
@@ -785,6 +786,7 @@ class FullTextSearch:
         conn.close()
         return stats
 
+
 # ==================== 语义搜索 ====================
 
 
@@ -1148,6 +1150,7 @@ class SemanticSearch:
             print(f"删除 embedding 失败: {e}")
             return False
 
+
 # ==================== 实体关系路径发现 ====================
 
 
@@ -1620,6 +1623,7 @@ class EntityPathDiscovery:
         bridge_scores.sort(key=lambda x: x["bridge_score"], reverse=True)
         return bridge_scores[:20]  # 返回前20
 
+
 # ==================== 知识缺口识别 ====================
 
 
@@ -2025,6 +2029,7 @@ class KnowledgeGapDetection:
 
         return recommendations
 
+
 # ==================== 搜索管理器 ====================
 
 
@@ -2212,6 +2217,7 @@ def get_search_manager(db_path: str = "insightflow.db") -> SearchManager:
         _search_manager = SearchManager(db_path)
     return _search_manager
 
+
 # 便捷函数
 
 
diff --git a/backend/security_manager.py b/backend/security_manager.py
index 0fedb52..aac14d5 100644
--- a/backend/security_manager.py
+++ b/backend/security_manager.py
@@ -297,9 +297,7 @@ class SecurityManager:
         """)
 
         # 创建索引
-        cursor.execute(
-            "CREATE INDEX IF NOT EXISTS idx_audit_logs_user ON audit_logs(user_id)"
-        )
+        cursor.execute("CREATE INDEX IF NOT EXISTS idx_audit_logs_user ON audit_logs(user_id)")
         cursor.execute(
             "CREATE INDEX IF NOT EXISTS idx_audit_logs_resource "
             "ON audit_logs(resource_type, resource_id)"
diff --git a/backend/tenant_manager.py b/backend/tenant_manager.py
index 6de9b49..4611248 100644
--- a/backend/tenant_manager.py
+++ b/backend/tenant_manager.py
@@ -1610,6 +1610,7 @@ class TenantManager:
             status=row["status"],
         )
 
+
 # ==================== 租户上下文管理 ====================
 
 
diff --git a/backend/test_phase8_task4.py b/backend/test_phase8_task4.py
index 105069d..6305dfc 100644
--- a/backend/test_phase8_task4.py
+++ b/backend/test_phase8_task4.py
@@ -380,5 +380,6 @@ async def main():
 
         traceback.print_exc()
 
+
 if __name__ == "__main__":
     asyncio.run(main())
diff --git a/backend/test_phase8_task5.py b/backend/test_phase8_task5.py
index 23c9e80..793f0a6 100644
--- a/backend/test_phase8_task5.py
+++ b/backend/test_phase8_task5.py
@@ -741,5 +741,6 @@ async def main():
     tester = TestGrowthManager()
     await tester.run_all_tests()
 
+
 if __name__ == "__main__":
     asyncio.run(main())
diff --git a/backend/workflow_manager.py b/backend/workflow_manager.py
index 07697e1..5ff70e9 100644
--- a/backend/workflow_manager.py
+++ b/backend/workflow_manager.py
@@ -27,6 +27,8 @@ from apscheduler.events import EVENT_JOB_ERROR, EVENT_JOB_EXECUTED
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from apscheduler.triggers.cron import CronTrigger
 from apscheduler.triggers.interval import IntervalTrigger
+from workflow_manager import WorkflowManager
+import urllib.parse
 
 # Constants
 UUID_LENGTH = 8  # UUID 截断长度