slug: user-preferences
title: User Preferences API
created: 2026-02-08T05:49:49.197429066Z
phase: implementation
phase_history:
    - phase: draft
      entered: 2026-02-08T05:49:49.197429066Z
      exited: 2026-02-08T06:04:08.481264669Z
    - phase: specified
      entered: 2026-02-08T06:04:08.481264669Z
      exited: 2026-02-08T06:04:08.489768009Z
    - phase: planned
      entered: 2026-02-08T06:04:08.489768009Z
      exited: 2026-02-08T06:04:08.49504538Z
    - phase: ready
      entered: 2026-02-08T06:04:08.49504538Z
      exited: 2026-02-08T06:04:08.50042898Z
    - phase: implementation
      entered: 2026-02-08T06:04:08.50042898Z
artifacts:
    audit:
        status: pending
        path: audit.md
    design:
        status: approved
        path: design.md
        approved_by: user
        approved_at: 2026-02-08T06:04:02.519059418Z
    qa_plan:
        status: approved
        path: qa-plan.md
        approved_by: user
        approved_at: 2026-02-08T06:04:02.531924677Z
    qa_results:
        status: pending
        path: qa-results.md
    review:
        status: pending
        path: review.md
    spec:
        status: approved
        path: spec.md
        approved_by: user
        approved_at: 2026-02-08T06:04:02.513348292Z
    tasks:
        status: approved
        path: tasks.md
        approved_by: user
        approved_at: 2026-02-08T06:04:02.525504967Z
        total: 8
        completed: 8
tasks:
    - id: task-001
      title: Domain layer - preference types, validation, defaults, and domain errors
      status: complete
      started_at: 2026-02-08T06:04:21.073131466Z
      done_at: 2026-02-08T06:04:59.143838086Z
    - id: task-002
      title: Port layer - PreferenceRepository interface and row type
      status: complete
      started_at: 2026-02-08T06:05:09.644910816Z
      done_at: 2026-02-08T06:05:19.519459876Z
    - id: task-003
      title: Service layer - PreferenceService with get, update, validation logic and unit tests
      status: complete
      started_at: 2026-02-08T06:05:27.120395886Z
      done_at: 2026-02-08T06:06:24.021112964Z
    - id: task-004
      title: Database migration - create user_preferences table
      status: complete
      started_at: 2026-02-08T06:06:35.339731999Z
      done_at: 2026-02-08T06:06:53.729592277Z
    - id: task-005
      title: PostgreSQL adapter - implement PreferenceRepository with sqlx
      status: complete
      started_at: 2026-02-08T06:07:01.795533407Z
      done_at: 2026-02-08T06:07:20.600911027Z
    - id: task-006
      title: Handler layer - GET and PUT preference handlers with error mapping and handler tests
      status: complete
      started_at: 2026-02-08T06:07:32.040998808Z
      done_at: 2026-02-08T06:08:37.691446229Z
    - id: task-007
      title: Routes, OpenAPI spec, and main.go wiring
      status: complete
      started_at: 2026-02-08T06:08:48.060805203Z
      done_at: 2026-02-08T06:10:41.696522126Z
    - id: task-008
      title: Cleanup - remove example scaffold files
      status: complete
      started_at: 2026-02-08T06:10:53.979045796Z
      done_at: 2026-02-08T06:11:23.894960337Z