feat: 数据管线架构优化 + 前端部署配置

- Bronze 层 RawEvent 表(原始事件存档)
- IngestFailure 死信表(失败持久化+重试)
- DataQualityCheck 数据质量监控
- DataLineage 血缘追踪
- MatchStats xG 追踪字段
- Nginx 前端服务配置

alembic/versions/0009_match_stats_xg_fields.py

@@ -0,0 +1,29 @@
+"""为 MatchStats 添加 xG 追踪字段
+
+Revision ID: 0009_match_stats_xg_fields
+Revises: 0008_raw_event_and_ingest_failure
+Create Date: 2026-09-17
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = '0009_match_stats_xg_fields'
+down_revision: Union[str, None] = '0008_raw_event_and_ingest_failure'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column('match_stats', sa.Column('xg_source', sa.String(30), nullable=True))
+    op.add_column('match_stats', sa.Column('xg_updated_at', sa.DateTime(timezone=True), nullable=True))
+    op.add_column('match_stats', sa.Column('xg_source_record_id', sa.String(100), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column('match_stats', 'xg_source_record_id')
+    op.drop_column('match_stats', 'xg_updated_at')
+    op.drop_column('match_stats', 'xg_source')