feat(db): moments_post 表+upsert(朋友圈实体,PK=云客data.id,create_time统一ms)

- MomentsPost 模型:moments_post 表,PK=id(云客 getFriendsterInfo data.id),
  wechat_id/create_time 建索引,praise/comment/image 存 JSON 列
- 迁移 524da8d2d597(手写 create_table,已应用到 smoke.db 并在临时 SQLite
  全链路 upgrade/downgrade 验证)
- repos.upsert_moments_posts:批量幂等 upsert;附带修 _build_column_values
  对 JSON 列表的误 join(标量列 join 保持不变,dept_route 旧测试仍过)
- 修复 3 个 chat_group 旧测试缺 owner_account_id(2026-08-24 复合主键遗留)
- 全套 430 测试通过

Co-Authored-By: Claude <noreply@anthropic.com>

yunke-server/tests/test_models.py

@@ -269,3 +269,51 @@ async def test_group_member_composite_pk():
             assert fetched.nickname == "Bob"
     finally:
         await engine.dispose()
+
+
+async def test_moments_post_round_trip():
+    """A MomentsPost row round-trips JSON list columns + ms create_time."""
+    from app.db.models import MomentsPost
+
+    engine = await _make_engine()
+    try:
+        SessionLocal = async_sessionmaker(engine, expire_on_commit=False)
+        async with SessionLocal() as session:
+            row = MomentsPost(
+                id="69e082a3c3524a7fe3ac53b4",
+                wechat_id="wxid_x",
+                sns_id="-3546042415332912522",
+                author_name="Yoyo",
+                author_wxid="wxid_x",
+                author_avatar="https://wx.qlogo.cn/avatars/yoyo",
+                content="Welcome to HESU",
+                type_raw="1",
+                create_time=1776302051000,
+                praise_json=[{"name": "E**U"}],
+                comment_json=[],
+                image_urls=["https://wx.oss.example/a.jpg"],
+                raw_json={"id": "69e082a3c3524a7fe3ac53b4"},
+            )
+            session.add(row)
+            await session.commit()
+
+            fetched = (
+                await session.execute(
+                    sa.select(MomentsPost).where(
+                        MomentsPost.id == "69e082a3c3524a7fe3ac53b4"
+                    )
+                )
+            ).scalar_one()
+            assert fetched.wechat_id == "wxid_x"
+            assert fetched.sns_id == "-3546042415332912522"
+            # JSON list columns must round-trip as lists (not joined strings).
+            assert fetched.praise_json[0]["name"] == "E**U"
+            assert fetched.comment_json == []
+            assert fetched.image_urls == ["https://wx.oss.example/a.jpg"]
+            # create_time stays the ms-epoch int exactly as written.
+            assert fetched.create_time == 1776302051000
+            assert fetched.type_raw == "1"
+            assert fetched.raw_json == {"id": "69e082a3c3524a7fe3ac53b4"}
+            assert fetched.fetched_at is not None
+    finally:
+        await engine.dispose()