fix(pretrained): accept case-insensitive .pretrained suffix

- parse aliases with case-insensitive suffix check\n- add dedicated InvalidPretrainedAliasError\n- extend backend test to cover uppercase suffix\n\nAuthored by OpenClaw (model: custom-chat-jinzhezeng-group/gpt-5.3-codex)

Author: njzjz-bot

deepmd/pretrained/deep_eval.py

@@ -25,16 +25,23 @@
     import numpy as np
 
 
+class InvalidPretrainedAliasError(ValueError):
+    """Raised when a pretrained alias string is malformed."""
+
+    def __init__(self, model_file: str) -> None:
+        super().__init__(f"Invalid pretrained alias: {model_file}")
+
+
 def parse_pretrained_alias(model_file: str) -> str:
     """Extract model name from ``*.pretrained`` alias string."""
     alias = Path(model_file).name
     suffix = ".pretrained"
-    if not alias.endswith(suffix):
-        raise ValueError(f"Invalid pretrained alias: {model_file}")
+    if not alias.lower().endswith(suffix):
+        raise InvalidPretrainedAliasError(model_file)
 
     model_name = alias[: -len(suffix)]
     if not model_name:
-        raise ValueError(f"Invalid pretrained alias: {model_file}")
+        raise InvalidPretrainedAliasError(model_file)
 
     return model_name
 

source/tests/common/test_pretrained_backend.py

@@ -32,6 +32,10 @@ def test_parse_pretrained_alias(self) -> None:
             parse_pretrained_alias("DPA-3.2-5M.pretrained"),
             "DPA-3.2-5M",
         )
+        self.assertEqual(
+            parse_pretrained_alias("DPA-3.2-5M.PRETRAINED"),
+            "DPA-3.2-5M",
+        )
 
     def test_parse_pretrained_alias_invalid(self) -> None:
         with self.assertRaises(ValueError):