# Status — foundation

## Round 0 — 2026-07-16 — STATUS: merged

**Merged:** `foundation` → `main` (fast-forward, commit cf6a6fb) after all acceptance
below passed. Local only — not yet pushed to `origin` (awaiting go-ahead).

**Directives acknowledged:** round 0 of plan/DIRECTIVES.md (run `foundation` only; contracts
correctness beats speed; lanes hard-depend on API shapes, schema, pose math, synthetic fixtures).

**Acceptance checklist** (plan/00-foundation.md + spec M0/M3) — all pass:
- [x] `python -m festival4d synthetic` → 3 fixture videos + populated DB + `points.ply` (3106 pts) + `ground_truth.json`. Evidence: CLI run logs "3 videos, 3106 points, 7 events, 4 anchors".
- [x] `python -m festival4d serve` → every M3 endpoint returns synthetic data; videos seekable. Evidence: curl of manifest/poses/anchors/events/pointcloud; `curl -H "Range: bytes=0-100" /media/cam0.mp4` → **206** with `content-range`; browser `<video>` seeked to 15s, `seekable=[0,20]`, readyState 4.
- [x] `pytest` green — **24 passed** (test_geometry, test_synthetic, test_api).
- [x] `npm run dev` serves the hello page; browser fetched `/api/manifest` cross-origin (CORS ok), pose.js self-test passed, **0 console errors**. (Vite fell back to :5174 — an unrelated dev server holds :5173; CORS now allows any localhost port.)
- [x] All lane-owned modules stubbed with frozen signatures; `cli.py` registers all 6 subcommands (dispatch + graceful NotImplementedError → exit 2).
- [x] Frozen geometry contract: `colmap_to_threejs` + `test_geometry.py` (3 known vectors, random round-trip, scipy oracle) + mirrored `frontend/src/lib/pose.js` with identical `POSE_TEST_VECTORS` (node self-test passes).
- [x] Classifier contract: `MomentClassification` (Pydantic) + `MomentClassifier` (runtime Protocol) + Gemini/Claude/Local provider stubs.
- [x] `plan/CHANGE_REQUESTS.md` created.

**Done this round:** full M0 + M3 + all frozen contracts. Env: Python 3.12 venv via uv, all
spec deps installed. DB schema per spec §2 with CRUD helpers. Timebase helpers in `config.py`.
API is Range-capable and CORS-enabled. Frontend scaffolds every layout file (lane-C modules
are stubs; `lib/pose.js` is the live frozen contract).

**Frozen-contract note for lanes:** CORS was widened from a single `:5173` origin to any
`http://localhost|127.0.0.1:<port>` (local single-user tool; robust to Vite port fallback).
Explicit `:5173` still included. If a lane needs a different API shape/schema/pose math,
file a CR in `plan/CHANGE_REQUESTS.md` — do not edit `db.py`/`api.py`/`cli.py`/`config.py`/
`synthetic.py`/`pyproject.toml`.

**Blockers / questions for coordinator:** none.

**Next:** merge `foundation` → `main`; lanes may start (per directive: C, then A, D, B).