feat: 全量功能模块开发与集成测试修复

- 新增后端模块：Alert、APIAsset、Compliance、Lineage、Masking、Risk、SchemaChange、Unstructured、Watermark
- 新增前端模块页面与API接口
- 新增Alembic迁移脚本(002-014)覆盖全量业务表
- 新增测试数据生成脚本与集成测试脚本
- 修复metadata模型JSON类型导入缺失导致启动失败的问题
- 修复前端Alert/APIAsset页面request模块路径错误
- 更新docker-compose与开发计划文档

backend/app/models/__init__.py

@@ -2,6 +2,14 @@ from app.models.user import User, Role, Dept, UserRole
 from app.models.metadata import DataSource, Database, DataTable, DataColumn, UnstructuredFile
 from app.models.classification import Category, DataLevel, RecognitionRule, ClassificationTemplate
 from app.models.project import ClassificationProject, ClassificationTask, ClassificationResult, ClassificationChange
+from app.models.ml import MLModelVersion
+from app.models.masking import MaskingRule
+from app.models.watermark import WatermarkLog
+from app.models.schema_change import SchemaChangeLog
+from app.models.risk import RiskAssessment
+from app.models.compliance import ComplianceRule, ComplianceIssue
+from app.models.alert import AlertRule, AlertRecord, WorkOrder
+from app.models.api_asset import APIAsset, APIEndpoint
 from app.models.log import OperationLog
 
 __all__ = [
@@ -9,5 +17,12 @@ __all__ = [
     "DataSource", "Database", "DataTable", "DataColumn", "UnstructuredFile",
     "Category", "DataLevel", "RecognitionRule", "ClassificationTemplate",
     "ClassificationProject", "ClassificationTask", "ClassificationResult", "ClassificationChange",
+    "MLModelVersion",
+    "MaskingRule",
+    "WatermarkLog",
+    "SchemaChangeLog",
+    "RiskAssessment",
+    "ComplianceRule",
+    "ComplianceIssue",
     "OperationLog",
 ]