fix: load_path find_app_root walk up to pipeline-app root

scripts/load_path.py

@@ -112,10 +112,15 @@ PATHS_LOGINED = [
 
 
 def find_app_root():
-    for c in [os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
-              os.path.expanduser("~/pipeline")]:
-        if os.path.isfile(os.path.join(c, "set_role_perm.py")):
-            return c
+    # 从 scripts/ 向上逐层查找 set_role_perm.py（位于 pipeline-app 根目录）
+    d = os.path.dirname(os.path.abspath(__file__))
+    for _ in range(6):
+        if os.path.isfile(os.path.join(d, "set_role_perm.py")):
+            return d
+        parent = os.path.dirname(d)
+        if parent == d:
+            break
+        d = parent
     return None