---
phase: 06-preset-data-first-run-detection-and-db-safety
plan: "02"
subsystem: data
tags: [presets, i18n, static-data]
dependency_graph:
  requires: []
  provides: [PresetItem, PRESETS]
  affects: [src/data/presets.ts, src/i18n/en.json, src/i18n/de.json]
tech_stack:
  added: []
  patterns: [static-data-module, i18n-dot-path]
key_files:
  created:
    - src/data/presets.ts
  modified:
    - src/i18n/en.json
    - src/i18n/de.json
decisions:
  - "item_tier restricted to fixed|variable only (no one_off) to match DB check constraint on template_items"
  - "presets.{type}.{slug} i18n key structure matches type+slug fields in PRESETS array"
metrics:
  duration: "~5 minutes"
  completed: "2026-04-20"
  tasks_completed: 2
  files_changed: 3
---

# Phase 06 Plan 02: Preset Data Library Summary

Static 19-item preset budget library with English and German translations, structured as `presets.{type}.{slug}` i18n keys matching the PRESETS array shape.

## Tasks Completed

| Task | Name | Commit | Files |
|------|------|--------|-------|
| 1 | Create src/data/presets.ts | 3bc7782 | src/data/presets.ts (created) |
| 2 | Add preset translations to en.json and de.json | d235080 | src/i18n/en.json, src/i18n/de.json |

## What Was Built

`src/data/presets.ts` exports `PresetItem` interface and `PRESETS` array with exactly 19 items:
- 4 income, 4 bill, 5 variable_expense, 2 debt, 2 saving, 2 investment
- All `item_tier` values are `"fixed"` or `"variable"` (no `"one_off"`)
- Pure static module — no Supabase or React imports

Both i18n files now have a top-level `"presets"` key with nested `{type}.{slug}` structure covering all 19 slugs in English and German.

## Deviations from Plan

None - plan executed exactly as written.

## Threat Surface Scan

No new network endpoints, auth paths, or trust boundaries introduced. T-06-05 (JSON malformed) mitigated — both files verified valid via `node -e "JSON.parse(...)"` before commit.

## Self-Check: PASSED

- src/data/presets.ts: FOUND
- src/i18n/en.json "presets" key: FOUND
- src/i18n/de.json "presets" key: FOUND
- 19 PRESETS items confirmed (grep '{ slug:' returns 19)
- no one_off in presets.ts confirmed
- tsc --noEmit: PASSED
- Commits 3bc7782 and d235080: confirmed in git log