## What this PR changes
<!-- One or two sentences in user-facing voice. Not commit-log style. -->

## Why
<!-- The user-facing reason. Bug fix? New feature? Hygiene? -->

## How tested
- [ ] `cargo test --workspace` green
- [ ] `cargo fmt --check` clean
- [ ] `cargo clippy --workspace --all-targets -- -D warnings` clean
- [ ] `npm run check` 0/0
- [ ] `npm run test` green
- [ ] `scripts/dogfood-rebrand-drill.sh` 8/8 (if migration / data-dir touched)
- [ ] Manual UI walk-through (if frontend touched)

## v0.1 scope check
- [ ] Confirms or extends an item in `docs/release/v0.1-checklist.md`
- [ ] Does NOT touch any item in the v0.2 / v0.2-garden-roadmap scope
- [ ] Does NOT remove any privacy invariant (no telemetry, no exfiltration, no AI-driven feature additions outside the locked scope)

## Notes for the reviewer
<!-- Architectural decisions, surprising choices, follow-up TODOs. -->