add gitattributes and rebase

Author: howieleung

sdk/ai/azure-ai-projects/assets.json

@@ -2,5 +2,5 @@
   "AssetsRepo": "Azure/azure-sdk-assets",
   "AssetsRepoPrefixPath": "python",
   "TagPrefix": "python/ai/azure-ai-projects",
-  "Tag": "python/ai/azure-ai-projects_4160165ae8"
+  "Tag": "python/ai/azure-ai-projects_dc87aa5115"
 }

sdk/ai/azure-ai-projects/samples/agents/assets/.gitattributes

@@ -0,0 +1,13 @@
+# Force LF line endings for test files to ensure consistent binary representation
+# across Windows and Linux platforms.
+#
+# These files are read and sent as binary REST API request payloads in tests.
+# Without consistent line endings, the binary content differs between platforms,
+# causing recorded test traffic to be inconsistent and test playback to fail.
+#
+# By enforcing LF endings, the binary representation remains identical regardless
+# of the platform where tests are executed.
+
+*.md text eol=lf
+*.csv text eol=lf
+*.jsonl text eol=lf