fix: 打手登录先认身份，默认邀请码改由后端下发

jituan/services/default_invite.py

@@ -0,0 +1,47 @@
+"""俱乐部默认打手邀请码（一键登录无扫码时使用）。"""
+import logging
+
+logger = logging.getLogger(__name__)
+
+CONFIG_KEY = 'default_dashou_invite'
+
+# 与 club_migrate.CLUB_MIGRATE_DEFAULT_GUANSHI_INVITE 保持同步（无 config_json 时回落）
+_FALLBACK_DEFAULT_INVITE = {
+    'lxs': '0000008VfJKPu4Spmcjt',
+    'xq': '0000008RffVgKHMj7kQC',
+}
+
+
+def get_club_default_dashou_invite(club_id: str) -> str:
+    """
+    优先读 Club.config_json.default_dashou_invite，
+    否则回落内置各店默认管事邀请码。
+    """
+    cid = (club_id or '').strip()
+    if not cid:
+        return ''
+    try:
+        from jituan.models import Club
+        club = Club.query.filter(club_id=cid).first()
+        if club:
+            cfg = club.config_json or {}
+            code = (cfg.get(CONFIG_KEY) or '').strip()
+            if code:
+                return code
+    except Exception:
+        logger.exception('read default_dashou_invite failed club=%s', cid)
+    try:
+        from jituan.services.club_migrate import CLUB_MIGRATE_DEFAULT_GUANSHI_INVITE
+        code = (CLUB_MIGRATE_DEFAULT_GUANSHI_INVITE.get(cid) or '').strip()
+        if code:
+            return code
+    except Exception:
+        pass
+    return (_FALLBACK_DEFAULT_INVITE.get(cid) or '').strip()
+
+
+def set_club_default_dashou_invite(club, invite_code: str) -> None:
+    """写入 club.config_json，调用方负责 save。"""
+    cfg = dict(getattr(club, 'config_json', None) or {})
+    cfg[CONFIG_KEY] = (invite_code or '').strip()
+    club.config_json = cfg