docs(plan): fusion_login_audit implementation plan
15 TDD tasks targeting ~28 tests:
T1 skeleton+icon, T2 model+indexes, T3 security, T4 capture helper,
T5 success hook, T6 bad-password hook, T7 unknown-user hook, T8 user
form (smart button + tab + computes), T9 standalone views + menus,
T10 settings + page section, T11 failure-burst alert + cooldown,
T12 retention GC cron, T13 async geo enrichment cron, T14 view
visibility security tests, T15 manual smoke + release tag.
Self-reviewed: every spec section maps to a task; no placeholders;
method and field names consistent across tasks.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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