fix: apply pre-commit formatting fixes

- Fix markdown linting issues in CLAUDE.md files
- Apply black formatting to Python files

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: Yossi Ovadia <[email protected]>

Author: yossiovadia

e2e-tests/00-client-request-test.py

@@ -22,9 +22,7 @@
 # Constants
 ENVOY_URL = "http://localhost:8801"
 OPENAI_ENDPOINT = "/v1/chat/completions"
-DEFAULT_MODEL = (
-    "Model-A"  # Use configured model that matches router config
-)
+DEFAULT_MODEL = "Model-A"  # Use configured model that matches router config
 MAX_RETRIES = 3
 RETRY_DELAY = 2