feat: sync account priorities after rate changes

backend/app/routers/websites.py

@@ -32,7 +32,7 @@ from app.schemas.website import (
     WebsiteUpdate,
 )
 from app.services.website_client import Sub2ApiWebsiteClient
-from app.services.website_sync import binding_sources, sync_binding
+from app.services.website_sync import binding_sources, sync_binding, build_rate_priority_map
 from app.utils.auth import get_current_user
 
 router = APIRouter(tags=["websites"])
@@ -171,24 +171,10 @@ def _numeric_group_id(value: str | None) -> int | None:
 
 def _build_rate_priority_map(db: Session, upstream_ids: set[int]) -> dict[str, int]:
     """根据上游分组倍率构建 group_id → priority 映射。
-
-    遍历所有涉及的上游的最新快照，收集分组的倍率，按倍率升序排列后赋值 priority。
-    倍率最低的 priority=1，次低的 priority=2，以此类推。相同倍率的分组共享同一 priority。
+    
+    委托给 website_sync.build_rate_priority_map 避免逻辑重复。
     """
-    group_rates: dict[str, float] = {}
-    for uid in upstream_ids:
-        groups = _latest_upstream_groups(db, uid)
-        for g in groups:
-            gid = _source_group_id(g)
-            rate = _source_group_rate(g)
-            if gid:
-                # 同一 group_id 在同个 upstream 内是唯一的；跨 upstream 的相同 group_id
-                # 如果倍率不同则以最后遇到的为准（实际很少冲突）
-                group_rates[gid] = rate
-    # 按倍率排序分配 priority
-    unique_rates = sorted(set(group_rates.values()))
-    rate_to_priority = {rate: idx + 1 for idx, rate in enumerate(unique_rates)}
-    return {gid: rate_to_priority[rate] for gid, rate in group_rates.items()}
+    return build_rate_priority_map(db, upstream_ids)
 
 
 @router.get("/api/websites", response_model=List[WebsiteResponse])
@@ -545,7 +531,7 @@ def import_upstream_keys_as_accounts(
                 exists = c.account_exists(row.imported_account_id)
                 if exists is True:
                     # 自动更新已有账号的 priority（分步导入时全局倍率排序可能已变）
-                    new_priority = rate_priority_map.get(row.group_id) if body.auto_priority_by_rate else None
+                    new_priority = rate_priority_map.get(f"{row.upstream_id}:{row.group_id}") if body.auto_priority_by_rate else None
                     priority_msg = "已导入过，已跳过"
                     if new_priority is not None:
                         try:
@@ -616,7 +602,7 @@ def import_upstream_keys_as_accounts(
                 "group_ids": group_ids,
                 "rate_multiplier": 1,
                 "concurrency": body.concurrency,
-                "priority": rate_priority_map.get(row.group_id, body.priority) if body.auto_priority_by_rate else body.priority,
+                "priority": rate_priority_map.get(f"{row.upstream_id}:{row.group_id}", body.priority) if body.auto_priority_by_rate else body.priority,
                 "notes": f"Imported by SmartUp from upstream key #{row.id}",
             }
             try: