fix(build): strip \r\n from all .py files — CRLF breaks patch_ops.sh text matching

31 files had Windows line endings (\r\n) from merge commit. This causes
patch_ops.sh replace_once() to fail: anchor strings use \n but file
content has \r\n, so no match → patch fails → docker build fails.

Also added .gitattributes to force LF for all text files going forward.

qwen3_6_scripts/patch_vllm_qwen3_5.py

@@ -1,11 +1,11 @@
 """
 Patches the vLLM model registry and deploys the Qwen3_5 model file.
-
+
 Deploy steps on the remote machine:
   1. patch_ops.sh locates vLLM with importlib.util.find_spec.
   2. cp modified_scripts/qwen3_5.py into the detected vllm model directory.
   2. python3 modified_scripts/patch_vllm_qwen3_5.py
-
+
 The registry patch installs Qwen3.6 aliases so /model/config.json does not
 need to be edited by hand.
 """
@@ -26,8 +26,8 @@ EXPECTED_REGISTRY_ENTRIES = (
     '"Qwen3_6ForCausalLM": ("qwen3_5", "Qwen3_5ForCausalLM")',
     '"Qwen3_6MoeForCausalLM": ("qwen3_5", "Qwen3_5MoeForCausalLM")',
 )
-
-
+
+
 def main():
     print(f"=== Patching {REGISTRY} ===")
     replace_once(
@@ -42,7 +42,7 @@ def main():
         '    "Qwen3_6MoeForCausalLM": ("qwen3_5", "Qwen3_5MoeForCausalLM"),',
         required=True,
         already_contains='"Qwen3_6MoeForCausalLM"')
-
+
     print("\n=== Static verification ===")
     model_source = MODEL.read_text(encoding="utf-8")
     tree = ast.parse(model_source, filename=str(MODEL))
@@ -67,7 +67,7 @@ def main():
     print(f"  registry aliases verified: {len(EXPECTED_REGISTRY_ENTRIES)}")
 
     print("\nDone. Registry aliases installed; do not edit /model/config.json.")
-
-
-if __name__ == "__main__":
-    main()
+
+
+if __name__ == "__main__":
+    main()