fix: add stop_strings for cross-arch chat template artifacts (Darwin Family audit 5/10)

generation_config.json

@@ -11,5 +11,10 @@
   "top_k": 64,
   "top_p": 0.95,
   "transformers_version": "5.5.0.dev0",
-  "trust_remote_code": false
-}
+  "trust_remote_code": false,
+  "stop_strings": [
+    "<|im_end|>",
+    "<|im_start|>",
+    "<turn|>"
+  ]
+}