API surface for the web replay viewer to come:
- `POST /api/replays` — auth required; persists the JSON body
verbatim, mints a server-side UUID, returns `{id}`. Three columns
(final_score, time_seconds, recorded_at) are projected out of the
payload at insert time so list endpoints don't have to scan blobs.
- `GET /api/replays/recent` — public; returns the N most-recent
replays across users (limit defaults to 20, capped at 50). Joins
the username so the feed reads as "AliceWon · 2:14 win".
- `GET /api/replays/:id` — public; returns the full replay JSON
the desktop client uploaded.
Migration `002_replays.sql` adds the `replays` table with indexes
on `received_at DESC` (recent feed) and `user_id` (per-user views).
Schema-version compatibility is the playback side's responsibility,
matching the desktop's existing `schema_version` gate — the server
just stores and serves whatever JSON came in.
`AppError::NotFound` added so `GET /api/replays/:id` can return a
proper 404 instead of an internal-server-error.
`.sqlx` cache regenerated for the new `query!` invocations.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
funman300