feat: map oa-wechat-notify icon for mobile menu grid

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

backend/app/api/mini_menu.py

@@ -103,6 +103,8 @@ def _mobile_menu_icon(path: str) -> str:
         return "oa-mine"
     if "oa/cc" in p:
         return "oa-cc"
+    if "oa/wechat-notify" in p:
+        return "oa-wechat-notify"
     if "form-sink" in p:
         return "orders-o"
     return "apps-o"
@@ -121,6 +123,7 @@ def _mobile_menu_icon_colors(path: str) -> dict:
             "oa/done",
             "oa/mine",
             "oa/cc",
+            "oa/wechat-notify",
         )
     ):
         return {"iconBg": "transparent", "iconFg": ""}