fix: 点单端推荐官按UID绑定，二维码进首页且去掉邀请码

扫码参数改为 yaoqingren=UserUID 落地点单首页；海报默认不再复用管事背景；不影响打手端与支付抢单分红。

Co-authored-by: Cursor <cursoragent@cursor.com>

jituan/services/miniapp_assets.py

@@ -76,7 +76,7 @@ MINIAPP_ICON_META = [
     ('icon_refresh', '通用刷新'),
     ('guanshi_poster_bg', '管事推广海报背景'),
     ('zuzhang_poster_bg', '组长推广海报背景'),
-    ('cuser_poster_bg', '点单端推广海报背景'),
+    ('cuser_poster_bg', '点单端推荐官海报背景'),
 ]
 
 MINIAPP_ICON_KEYS = [k for k, _ in MINIAPP_ICON_META]
@@ -137,7 +137,8 @@ MINIAPP_ICON_DEFAULTS['fighter_mine_switch'] = f'{ICON_FOLDER}/fighter_mine_swit
 MINIAPP_ICON_DEFAULTS['mine_pindao'] = 'beijing/tubiao/grzx_pindao.jpg'
 MINIAPP_ICON_DEFAULTS['guanshi_poster_bg'] = 'beijing/haibaobeijing.jpg'
 MINIAPP_ICON_DEFAULTS['zuzhang_poster_bg'] = 'beijing/zuzhangbeijing.jpg'
-MINIAPP_ICON_DEFAULTS['cuser_poster_bg'] = 'beijing/haibaobeijing.jpg'
+# 点单端推荐官海报：独立路径，禁止复用管事/打手背景
+MINIAPP_ICON_DEFAULTS['cuser_poster_bg'] = 'beijing/haibao/cuser_poster_bg.jpg'
 
 POSTER_BG_FIELDS = {
     'guanshi_bg': 'guanshi_poster_bg',
@@ -147,7 +148,7 @@ POSTER_BG_FIELDS = {
 POSTER_BG_DEFAULTS = {
     'guanshi_bg': 'beijing/haibaobeijing.jpg',
     'zuzhang_bg': 'beijing/zuzhangbeijing.jpg',
-    'cuser_bg': 'beijing/haibaobeijing.jpg',
+    'cuser_bg': 'beijing/haibao/cuser_poster_bg.jpg',
 }
 POSTER_FOLDER = 'beijing/haibao'
 POSTER_ICON_KEYS = frozenset(POSTER_BG_FIELDS.values())
@@ -218,6 +219,9 @@ def get_poster_payload(club_id: str) -> dict:
         row = rows.get(icon_key)
         if row and row.is_uploaded and (row.image_path or '').strip():
             result[field] = row.image_path.strip()
+        elif field == 'cuser_bg':
+            # 点单端未上传时不回落到管事背景，避免错图
+            result[field] = (row.image_path.strip() if row and (row.image_path or '').strip() else '') or default
         else:
             result[field] = default
     return result