feat: sprint 1 — auth + CRUD engagements

Ship the first feature end-to-end on the UI: users log in with JWT,
admins manage user accounts, and any authenticated user (per RBAC)
can create, list, view, edit, and delete engagements.

Backend (Flask + SQLAlchemy + SQLite, 63 pytest)
- User / Engagement models, Alembic 0001 initial schema
- argon2 password hashing, JWT bearer (60-min TTL), @login_required
  and @role_required decorators
- 13 API endpoints under /api/*, including last-admin protection on
  DELETE/PATCH user and JSON 404 on unknown /api/* paths
- `flask create-admin` CLI with duplicate / short-password handling

Frontend (React + Vite + Tailwind + TanStack Query, 20 vitest)
- Inter font bundled locally (no CDN), DESIGN.md tokens in Tailwind
- LoginPage / EngagementsList / EngagementForm / EngagementDetail /
  UsersAdmin pages with role-aware UI
- Layout, ProtectedRoute, StatusBadge, FormField, LoadingState,
  ErrorState, EmptyState, Toast + provider
- Axios client: Bearer interceptor, 401 → purge + /login + "Session
  expirée" toast, 403 → "Accès refusé" toast (declarative <Navigate>
  for already-authed users, Fragment-keyed admin user rows)

Deployment
- Single multistage Dockerfile (node:20-alpine → python:3.12-slim)
- docker/entrypoint.sh runs `flask db upgrade` before `flask run`
- Makefile: build/start/stop/restart/update/logs/create-admin/
  update-mitre/test-{backend,frontend,e2e}/clean
- .env.example documenting MIMIC_JWT_SECRET / MIMIC_DB_PATH / MIMIC_PORT
- SQLite at /data/mimic.sqlite on named volume mimic-data

Acceptance suite (Playwright, 36 tests, all 27 ACs)
- e2e/ scaffold with playwright.config + auth/api fixtures
- One spec per user story (us1-bootstrap through us6-deployment)
- Portable via MIMIC_CONTAINER_CMD / MIMIC_BASE_URL (docker or podman)

Docs
- README.md with quick-start and architecture overview
- CHANGELOG.md updated with Sprint 1 deliverables
- pyrightconfig.json so the Python LSP sees backend/.venv and
  resolves the `backend.app.*` absolute imports

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

backend/tests/test_engagements.py

@@ -0,0 +1,281 @@
+"""Engagement endpoint tests."""
+from __future__ import annotations
+
+from flask.testing import FlaskClient
+
+from backend.app.models import User
+from backend.tests.conftest import auth_headers as _h
+
+
+def _create(
+    client: FlaskClient, token: str, **overrides: object
+) -> dict[str, object]:
+    payload: dict[str, object] = {
+        "name": "Op Alpha",
+        "description": "first engagement",
+        "start_date": "2026-06-01",
+        "end_date": "2026-06-10",
+        "status": "planned",
+    }
+    payload.update(overrides)
+    resp = client.post("/api/engagements", headers=_h(token), json=payload)
+    assert resp.status_code == 201, resp.get_json()
+    return resp.get_json()
+
+
+def test_create_engagement_as_redteam(
+    client: FlaskClient, redteam_user: User, redteam_token: str
+) -> None:
+    body = _create(client, redteam_token)
+    assert body["name"] == "Op Alpha"
+    assert body["status"] == "planned"
+    assert body["created_by"] == {"id": redteam_user.id, "username": "redteam1"}
+
+
+def test_create_engagement_as_admin(
+    client: FlaskClient, admin_user: User, admin_token: str
+) -> None:
+    body = _create(client, admin_token, name="Op Admin")
+    assert body["created_by"]["username"] == "admin1"
+
+
+def test_create_engagement_soc_forbidden(
+    client: FlaskClient, soc_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(soc_token),
+        json={"name": "x", "start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 403
+
+
+def test_create_engagement_unauth(client: FlaskClient) -> None:
+    resp = client.post(
+        "/api/engagements", json={"name": "x", "start_date": "2026-06-01"}
+    )
+    assert resp.status_code == 401
+
+
+def test_create_engagement_missing_name(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(redteam_token),
+        json={"start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 400
+
+
+def test_create_engagement_bad_date(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(redteam_token),
+        json={"name": "bad", "start_date": "not-a-date"},
+    )
+    assert resp.status_code == 400
+
+
+def test_create_engagement_end_before_start(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(redteam_token),
+        json={
+            "name": "bad",
+            "start_date": "2026-06-10",
+            "end_date": "2026-06-01",
+        },
+    )
+    assert resp.status_code == 400
+
+
+def test_create_engagement_bad_status(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(redteam_token),
+        json={"name": "bad", "start_date": "2026-06-01", "status": "wat"},
+    )
+    assert resp.status_code == 400
+
+
+def test_create_engagement_default_status_planned(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(redteam_token),
+        json={"name": "Op default", "start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 201
+    assert resp.get_json()["status"] == "planned"
+
+
+def test_list_engagements_all_roles_can_read(
+    client: FlaskClient,
+    redteam_token: str,
+    soc_token: str,
+    admin_token: str,
+) -> None:
+    _create(client, redteam_token)
+    for token in (redteam_token, soc_token, admin_token):
+        resp = client.get("/api/engagements", headers=_h(token))
+        assert resp.status_code == 200
+        body = resp.get_json()
+        assert isinstance(body, list)
+        assert len(body) >= 1
+        assert body[0]["created_by"] == {
+            "id": body[0]["created_by"]["id"],
+            "username": body[0]["created_by"]["username"],
+        }
+
+
+def test_get_engagement_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = client.get("/api/engagements/9999", headers=_h(redteam_token))
+    assert resp.status_code == 404
+
+
+def test_get_engagement_ok(client: FlaskClient, redteam_token: str) -> None:
+    created = _create(client, redteam_token)
+    resp = client.get(
+        f"/api/engagements/{created['id']}", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 200
+    assert resp.get_json()["id"] == created["id"]
+
+
+def test_patch_engagement_redteam(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(redteam_token),
+        json={"status": "active", "description": "now in progress"},
+    )
+    assert resp.status_code == 200
+    body = resp.get_json()
+    assert body["status"] == "active"
+    assert body["description"] == "now in progress"
+
+
+def test_patch_engagement_admin(
+    client: FlaskClient, redteam_token: str, admin_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(admin_token),
+        json={"name": "Op renamed"},
+    )
+    assert resp.status_code == 200
+    assert resp.get_json()["name"] == "Op renamed"
+
+
+def test_patch_engagement_bad_status(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(redteam_token),
+        json={"status": "wat"},
+    )
+    assert resp.status_code == 400
+
+
+def test_patch_engagement_soc_forbidden(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(soc_token),
+        json={"status": "closed"},
+    )
+    assert resp.status_code == 403
+
+
+def test_patch_engagement_end_before_start(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token, start_date="2026-06-01")
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(redteam_token),
+        json={"end_date": "2026-05-30"},
+    )
+    assert resp.status_code == 400
+
+
+def test_patch_engagement_clear_end_date(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token, end_date="2026-06-30")
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(redteam_token),
+        json={"end_date": None},
+    )
+    assert resp.status_code == 200
+    assert resp.get_json()["end_date"] is None
+
+
+def test_patch_engagement_empty_name_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.patch(
+        f"/api/engagements/{created['id']}",
+        headers=_h(redteam_token),
+        json={"name": "   "},
+    )
+    assert resp.status_code == 400
+
+
+def test_patch_engagement_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = client.patch(
+        "/api/engagements/9999", headers=_h(redteam_token), json={"name": "x"}
+    )
+    assert resp.status_code == 404
+
+
+def test_delete_engagement_redteam(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.delete(
+        f"/api/engagements/{created['id']}", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 204
+
+
+def test_delete_engagement_admin(
+    client: FlaskClient, redteam_token: str, admin_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.delete(
+        f"/api/engagements/{created['id']}", headers=_h(admin_token)
+    )
+    assert resp.status_code == 204
+
+
+def test_delete_engagement_soc_forbidden(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    created = _create(client, redteam_token)
+    resp = client.delete(
+        f"/api/engagements/{created['id']}", headers=_h(soc_token)
+    )
+    assert resp.status_code == 403
+
+
+def test_delete_engagement_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = client.delete("/api/engagements/9999", headers=_h(redteam_token))
+    assert resp.status_code == 404