fix: close data integrity and hot-reload review findings

Backfill same-day snapshots for newly added or restored videos, preserve successful fan snapshots on resume, persist incomplete state before forced re-runs, and split collection completion from backup completion so failed backups can retry without API calls. Reject missing data payloads instead of treating them as empty folders, guard against mass-unfav on suspicious empty remote folders, rebuild Bilibili clients when credentials change, recompute primary folder ownership from active relations with per-folder fav_time, preserve original titles for dropped invalid videos, poll config every 60 seconds, and fix favsort verify interval and mixed resource types.

tests/test_repository.py

@@ -18,7 +18,7 @@ F1 = FolderConfig(year=2025, media_id=4451053851, title="2025")
 F2 = FolderConfig(year=2026, media_id=3700023351, title="2026")
 
 
-def resource(aid, *, attr=0, up_mid=100, title="视频", bvid=None):
+def resource(aid, *, attr=0, up_mid=100, title="视频", bvid=None, fav_time=None):
     return FavResource(
         aid=aid,
         bvid=bvid or f"BV{aid}",
@@ -29,7 +29,7 @@ def resource(aid, *, attr=0, up_mid=100, title="视频", bvid=None):
         duration=600,
         cover="http://example/cover.jpg",
         attr=attr,
-        fav_time=None,
+        fav_time=fav_time,
     )
 
 
@@ -227,6 +227,72 @@ def test_folder_sync_metadata_and_counts():
             db.close()
 
 
+def test_primary_folder_is_order_independent():
+    with tempfile.TemporaryDirectory() as tmp:
+        db, repo = setup(tmp)
+        try:
+            repo.upsert_from_fav(resource(1, fav_time=100), F1.media_id, was_added=True)
+            assert repo.get_video(1)["folder_id"] == F1.media_id
+            repo.upsert_from_fav(resource(1, fav_time=200), F2.media_id, was_added=True)
+            assert repo.get_video(1)["folder_id"] == F2.media_id
+
+            # 全量刷新按相反顺序遍历，主归属仍应指向 fav_time 更新的夹
+            repo.upsert_from_fav(resource(1, fav_time=100), F1.media_id, was_added=False)
+            assert repo.get_video(1)["folder_id"] == F2.media_id
+            repo.upsert_from_fav(resource(1, fav_time=200), F2.media_id, was_added=False)
+            assert repo.get_video(1)["folder_id"] == F2.media_id
+
+            # 从主夹移除、另一个夹仍持有时，主归属切换
+            status = repo.mark_resource_removed(F2.media_id, 1)
+            assert status == "active"
+            assert repo.get_video(1)["folder_id"] == F1.media_id
+        finally:
+            db.close()
+
+
+def test_dropped_invalid_preserves_original_title():
+    with tempfile.TemporaryDirectory() as tmp:
+        db, repo = setup(tmp)
+        try:
+            repo.upsert_from_fav(
+                resource(1, title="原始标题"), F1.media_id, was_added=True
+            )
+            repo.set_video_status(1, "dropped")
+            repo.upsert_from_fav(
+                resource(1, title="已失效视频", attr=9),
+                F1.media_id,
+                was_added=False,
+            )
+            video = repo.get_video(1)
+            assert video["status"] == "dropped"
+            assert video["title"] == "原始标题"
+        finally:
+            db.close()
+
+
+def test_pending_snapshot_aids():
+    with tempfile.TemporaryDirectory() as tmp:
+        db, repo = setup(tmp)
+        try:
+            repo.upsert_from_fav(resource(1), F1.media_id, was_added=True)
+            repo.upsert_from_fav(resource(2), F1.media_id, was_added=True)
+            repo.upsert_from_fav(resource(3), F1.media_id, was_added=True)
+            repo.set_video_status(3, "unfaved")
+            repo.upsert_snapshot(
+                "2026-10-31", 1,
+                metrics={"view": 1, "like": 1, "favorite": 1, "coin": 1,
+                         "share": 1, "reply": 1, "danmaku": 1},
+                ok=True, err=None, captured_at=1,
+            )
+            repo.upsert_snapshot(
+                "2026-10-31", 2,
+                metrics=None, ok=False, err="x", captured_at=1,
+            )
+            assert repo.pending_snapshot_aids("2026-10-31") == [2, 3]
+        finally:
+            db.close()
+
+
 def main():
     test_upsert_and_folder_resource()
     test_invalid_attr_and_missing()
@@ -236,6 +302,9 @@ def main():
     test_multi_folder_moves_primary_and_warns()
     test_blacklist_seed_idempotent()
     test_folder_sync_metadata_and_counts()
+    test_primary_folder_is_order_independent()
+    test_dropped_invalid_preserves_original_title()
+    test_pending_snapshot_aids()
     print("OK: 收藏夹/视频状态机与黑名单测试全部通过")