docs: decide multi-person ZK sharing ADR; reconcile jwt/encryption docs
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Rewrite the encryption/persona/JWT docs to match the implemented code and
record the multi-person sharing design.

- multi-person-sharing.md (NEW): ADR for per-profile DEK + X25519 envelope
  sharing. All five original open questions resolved 2026-07-18. Covers
  divorced-parents, pets, graduation, and elderly-parent care; adds an
  admin permission tier for owner-incapacity. Decided, not yet implemented.
  (#3)
- encryption.md: full rewrite to the implemented wrapped-DEK / Web Crypto
  model; the old version described ZK encryption as 'planned'. (#4)
- jwt-authentication-decision.md: rewritten to match implementation
  (PBKDF2 not bcrypt, no Redis, token_version revocation, real Claims).
  Original aspirational content preserved in a History section. (#4)
- PERSONA_AND_FAMILY_MANAGEMENT.md: 'Current reality' section added, old
  'Implementation Status' marked superseded, encryption section corrected. (#4)
- ENCRYPTION_UPDATE_SUMMARY.md: archived (changelog for a rewrite that
  itself went stale). (#4)
- ADR README index updated for the new + reconciled entries.
This commit is contained in:
goose 2026-07-18 19:26:43 -03:00
parent 6a569da3b1
commit e322145ffb
6 changed files with 737 additions and 990 deletions

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@ -11,14 +11,15 @@ the documentation reconciliation. They are historical context, not current specs
|--------|-------|
| [tech-stack-decision.md](./tech-stack-decision.md) | Master stack choice: Rust/Axum backend, React frontend, MongoDB, JWT |
| [mongodb-schema-decision.md](./mongodb-schema-decision.md) | Document model + at-rest encryption approach |
| [jwt-authentication-decision.md](./jwt-authentication-decision.md) | JWT access/refresh tokens, recovery phrases |
| [jwt-authentication-decision.md](./jwt-authentication-decision.md) | JWT access/refresh tokens, `token_version` revocation, refresh rotation — *reconciled with code 2026-07-18* |
| [frontend-decision-summary.md](./frontend-decision-summary.md) | React (web) + React Native (mobile, future) split |
| [state-management-decision.md](./state-management-decision.md) | Client state — *superseded*: decision was Redux Toolkit, **actual code uses Zustand** |
| [monorepo-structure.md](./monorepo-structure.md) | Repository layout (`backend/`, `web/`, `mobile/`, `docs/`) |
| [backend-deployment-constraints.md](./backend-deployment-constraints.md) | Deployment requirements (Solaria, Docker) |
| [mobile-health-frameworks-data.md](./mobile-health-frameworks-data.md) | HealthKit / Health Connect data-type reference (for future mobile work) |
| [android-health-connect-data-types.md](./android-health-connect-data-types.md) | Android Health Connect data types |
| [zero-knowledge-encryption.md](./zero-knowledge-encryption.md) | Client-side zero-knowledge encryption (AES-256-GCM, double-PBKDF2, Phase 1) |
| [zero-knowledge-encryption.md](./zero-knowledge-encryption.md) | Client-side zero-knowledge encryption (AES-256-GCM, double-PBKDF2, wrapped-DEK recovery; Phase 1 + Phase 2 implemented) |
| [multi-person-sharing.md](./multi-person-sharing.md) | Per-profile DEK + X25519 envelope for family/caregiver sharing — *Decided, not yet implemented* (issue #3) |
> **Note**: Where a decision diverges from the implemented code (e.g. state
> management), the code is the source of truth and the ADR is kept only as