Implement token activity log

[Luc1412]

Summary

• add a persistent, per-token activity log for enrollment and push authentication events
• record verified incoming push requests, approvals, denials, and enrollment outcomes
• render recent activity in batches and keep the per-token clear action accessible for large histories
• add a developer action that populates the first token with every supported event type
• update English and German localization catalogs

Impact

Users can review the security-relevant history of each token and clear that history independently. Only the newest 20 entries render initially, with older activity loaded in batches to keep large logs responsive.

Validation

• bunx tsc --noEmit
• bun run lint
• bun run i18n:compile
• git diff --check

No native build was run.