[WIP] Fix Dependabot vulnerabilities for starlette

[Copilot]

• Inspect repository layout and dependency manifests
• Identify the likely source of the open dependency vulnerabilities
• Run existing baseline validation commands before making changes
• Apply the smallest dependency updates needed to clear the vulnerabilities
• Add or adjust focused tests only if the dependency changes require coverage updates
• Run targeted verification for the affected area
• Run required pre-commit and final validation checks
• Scan changed files for secrets and report the completed fix