Promote to production: Digital Legacy Letter (Legacy category) - #117
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A new client-side tool + 'Legacy' category. Write a private letter (final words + account passwords) that family can open only when the time comes. - Content encrypted with a random 256-bit DEK (AES-256-GCM). The DEK has two independent recovery paths: a PBKDF2-derived password wrap, and a Shamir Secret Sharing split over GF(256) into N family shares needing any K (e.g. 3 of 5). - Pure, unit-tested libs: shamir.lib (8 tests), crypto.lib, vault.lib (12 tests) — round-trips both paths, rejects wrong password/insufficient shares, share checksum + tamper detection, file never contains the shares. - Thin Create/Open island; 'unrecoverable by design' warning; executor-share tip. - EN + Bahasa SEO content (ID: 'Surat Wasiat Digital', no 'alat'). Auto /id/ + category hub + OG image via existing pipeline. status: beta. Note: true auto-release-on-death isn't possible purely client-side (needs a server holding data); handoff is human-arranged via the password/shares by design. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Ubfx4XocHcECaL8twp9zsr
feat(legacy): Digital Legacy Letter (encrypted 'in case I die' vault)
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Promotes #116 — encrypted client-side legacy letter (AES-256 + Shamir family shares), new Legacy category, bilingual + OG.