slug: user-preferences
title: User Preferences API
created: 2026-02-09T02:15:19.934404761Z
phase: review
phase_history:
    - phase: draft
      entered: 2026-02-09T02:15:19.934404761Z
      exited: 2026-02-09T02:18:19.466533103Z
    - phase: specified
      entered: 2026-02-09T02:18:19.466533103Z
      exited: 2026-02-09T02:29:25.185315477Z
    - phase: planned
      entered: 2026-02-09T02:29:25.185315477Z
      exited: 2026-02-09T02:29:30.58699614Z
    - phase: ready
      entered: 2026-02-09T02:29:30.58699614Z
      exited: 2026-02-09T02:32:28.709423195Z
    - phase: implementation
      entered: 2026-02-09T02:32:28.709423195Z
      exited: 2026-02-09T02:42:14.015835526Z
    - phase: implementation
      entered: 2026-02-09T02:42:14.015835526Z
      exited: 2026-02-09T02:45:34.10464457Z
    - phase: review
      entered: 2026-02-09T02:45:34.10464457Z
artifacts:
    audit:
        status: pending
        path: audit.md
    design:
        status: approved
        path: design.md
        approved_by: user
        approved_at: 2026-02-09T02:23:50.511364172Z
    qa_plan:
        status: approved
        path: qa-plan.md
        approved_by: user
        approved_at: 2026-02-09T02:29:20.545684043Z
    qa_results:
        status: pending
        path: qa-results.md
    review:
        status: passed
        path: review.md
    spec:
        status: approved
        path: spec.md
        approved_by: user
        approved_at: 2026-02-09T02:18:15.533898188Z
    tasks:
        status: approved
        path: tasks.md
        approved_by: user
        approved_at: 2026-02-09T02:26:14.114770656Z
        total: 6
        completed: 6
tasks:
    - id: task-001
      title: Domain layer - preferences entity, validation, defaults, and errors
      status: complete
      started_at: 2026-02-09T02:32:33.046963423Z
      done_at: 2026-02-09T02:33:13.805844526Z
    - id: task-002
      title: Port layer - PreferencesRepository interface
      status: complete
      started_at: 2026-02-09T02:33:13.812394852Z
      done_at: 2026-02-09T02:33:27.291639357Z
    - id: task-003
      title: Service layer - PreferencesService with deep merge, get/update logic, and unit tests
      status: complete
      started_at: 2026-02-09T02:33:27.300268305Z
      done_at: 2026-02-09T02:34:22.01529497Z
    - id: task-004
      title: Database migration and PostgreSQL adapter
      status: complete
      started_at: 2026-02-09T02:34:22.023308991Z
      done_at: 2026-02-09T02:34:49.980516171Z
    - id: task-005
      title: HTTP handlers - GET and PUT preferences with request/response types and unit tests
      status: complete
      started_at: 2026-02-09T02:34:49.9863189Z
      done_at: 2026-02-09T02:35:44.499210123Z
    - id: task-006
      title: Wiring, routes, OpenAPI spec, and example scaffolding removal
      status: complete
      started_at: 2026-02-09T02:35:44.505187642Z
      done_at: 2026-02-09T02:37:21.440542135Z