v1.22.2: Dependency updates, Alpine base image refresh, and CI actions update

Maintenance & Dependency Updates

• Python Dependencies (#201):
  • Updated fastapi from 0.143.3 to 0.161.1
  • Updated ruff from 0.17.1 to 0.17.2
  • Updated certifi from 2026.10.19 to 2026.10.23
  • Maintained strict parity between uv.lock and cf-tunnel-sync/requirements.txt
• Base Images (#199, #200):
  • Refreshed python:3.11-alpine base image digest in cf-tunnel-sync/Dockerfile
  • Refreshed nginx:alpine base image digest in cf-tunnel-dashboard/Dockerfile
• CI / GitHub Actions (#202):
  • Updated 8 actions (setup-uv, setup-python, codeql-action, login-action, osv-scanner-action) to latest pinned commit SHAs for supply-chain integrity

Validation & Reviews

• All 364 tests passing across Python 3.11, 3.12, 3.13, and 3.14.
• All hermetic gates, OSV security scans, and CodeQL analyses verified green.
• Reviews approved by @MustermenschAlex, @kuenstlichedummheit-sys, and @majorungustl.