Kick off Phase 1 (v1 prototype) per tech-spec §11.1. Sets up the Cargo
workspace and the first TDD slice of heph-core:
- Migration runner + §4.5 SQLite schema (nodes, tasks, links, aliases,
users, oplog, sync_state, conflicts), versioned via PRAGMA user_version.
- Clock-injected `Clock` trait (no ambient wall-clock reads; §2).
- `Store` trait + `LocalStore` SQLite backend with node create/get,
bootstrapping the single local user (oidc_sub NULL, §13).
- Node model (kinds: doc/task/project/tag/journal).
Repo housekeeping: fill AGENTS.md Project Structure (last template TODO),
ignore /target, add self-bootstrapping .forgejo/scripts/build that runs
cargo fmt/clippy/test in CI (§9), changelog fragment.
Tests green: 4 unit tests (migration version, local-user idempotency,
create/get round-trip, missing-node None).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
