Superadmin impersonation, hardened auth/upload paths, dependency updates

- Add superadmin impersonation: sessions.impersonated_by (migration 0003) is
  stamped onto audit rows so impersonated actions are attributable, with a
  persistent ImpersonationBanner in the app shell.
- Harden auth and upload handling across routes (safe redirect targets,
  filename sanitization, checkout grant handling).
- Update dependencies: Sentry 8 -> 10, @fastify/static 8 -> 10,
  react-router-dom 6.30.6; add find-my-way / fast-uri overrides.
- Add tests for safe-next, checkout-grant, and upload-filename.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Leon Serfaty
2026-08-26 10:25:39 -04:00
co-authored by Claude Opus 5
parent 4a1122a7c9
commit eb36b81dc9
28 changed files with 7936 additions and 5763 deletions
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