Security Patching and Dependency Sweep

Details

We swept the full dependency tree across backend and frontend, upgrading anything with a known security advisory. CPython, Node, all Python packages, all npm packages, the container base images, and the Helm charts were bumped to the latest stable releases. Regression tests passed clean across all suites. Routine work, but important enough to log.

What changed

• Backend runtime and Python deps refreshed to latest stable
• Frontend runtime and npm deps refreshed to latest stable
• Container base images rebuilt against latest patched releases
• Full regression suite green post-upgrade