# Progress - Phase 1 (scaffold): repo layout, Makefile, .env loader + validated config, slog JSON, ULID pkg, trusted-proxy middleware, /healthz /readyz /metricsz, Dockerfile + compose (mongo+app, healthchecks, localhost-bound 8787), graceful shutdown — build/vet/tests green, smoke PASS. - Phase 2 (store layer): mongo-driver v2 connection with startup retry, §4.9 indexes idempotent, optimistic-concurrency UpdateVersioned (ErrVersionConflict/ErrNotFound), AES-256-GCM credential crypto, HMAC-signed file URL tokens (1h TTL), GridFS store with MIME sniffing + size cap + sha256, /readyz mongo check (verified 503 on stopped Mongo) — unit + integration tests green. - Phase 3 (auth): argon2id (PHC, spec params), login/register rate limiting, opaque Mongo sessions (30d sliding, TTL index), CSRF double-submit, bootstrap admin with forced password change, RBAC middleware + matrix tests, OIDC code flow with PKCE + email linking (verified-only), full integration suite incl. fake IdP — all green. - Phase 4 (base UI shell): embedded templates + static assets (no build step), §10 beige/dark tokens with radius 2px, theme toggle persisted to localStorage + profile, login/register/change-password pages, profile page (avatar upload w/ MIME check, bio, contacts, arbitrary extra fields, version-conflict 409), role-based navigation, /files/{id} serving (session or signed token), CSP without inline scripts + security headers — unit + integration tests green, stack verified live.