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/alembic/versions/003_add_project_task_fields.py

@@ -0,0 +1,27 @@
+"""Add celery_task_id and scan_progress to classification_project
+
+Revision ID: 003
+Revises: 002
+Create Date: 2026-04-23 14:30:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision: str = "003"
+down_revision: Union[str, None] = "002"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("classification_project", sa.Column("celery_task_id", sa.String(100), nullable=True))
+    op.add_column("classification_project", sa.Column("scan_progress", sa.Text(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("classification_project", "scan_progress")
+    op.drop_column("classification_project", "celery_task_id")