Integration tests: DB CRUD, auth flow, event handler

[BillyOutlast]

Blocked by infrastructure

Plan: .opencode/plans/code-quality-cleanup.md Phase 2.2-2.4

What's needed

1. DB CRUD tests (3-5 tests) — needs DATABASE_URL pointing to test DB. Helper exists at server/test/utils/db.ts (transaction-per-test).
2. Auth flow tests (3-5 tests) — needs OIDC fixture setup. MSW OIDC mocks exist at server/test/mocks/oidc.ts.
3. Event handler tests (3-5 tests) — needs WebSocket/SSE test infrastructure. No existing helpers.

Unblocking steps

• For DB: set up a test database and configure DATABASE_URL in vitest environment
• For auth: create reusable OIDC mock fixtures (token generation, callback handling)
• For events: evaluate ws library test helpers or msw WebSocket interceptor

Coverage target: 1.17% → 3-5% after these tests land.