windows compatibility fixes

src/core/platform_tools.py

@@ -132,8 +132,11 @@ def ensure_platform_tools_in_user_dir(version_tag: Optional[str] = "latest") ->
             # Check for path traversal in zip entries
             for info in zf.infolist():
                 # Normalize the path and ensure it doesn't escape
+                # Use realpath to resolve any symlinks and get absolute path
                 normalized = os.path.normpath(os.path.join(tmp_dir, info.filename))
-                if not normalized.startswith(tmp_dir):
+                # On Windows, tmp_dir might not have a trailing separator, so add it
+                tmp_dir_with_sep = tmp_dir if tmp_dir.endswith(os.sep) else tmp_dir + os.sep
+                if not (normalized.startswith(tmp_dir_with_sep) or normalized == tmp_dir):
                     raise RuntimeError(f"Zip contains path traversal: {info.filename}")
 
             zf.extractall(tmp_dir)