Add nullable region field to evolutions for regional form filtering

Regional evolutions (e.g., Pikachu → Alolan Raichu) only occur in specific
regions. This adds a nullable region column so the app can filter evolutions
by the game's region. When a regional evolution exists for a given trigger/item,
the non-regional counterpart is automatically hidden.

Full-stack: migration, model, schemas, API with region query param, seeder,
Go fetch tool, frontend types/API/hook/components, and admin form.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-02-07 20:05:07 +01:00
parent 23a7b6ad53
commit a65efa22da
17 changed files with 147 additions and 11 deletions

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# nuzlocke-tracker-o18w
title: Add region field to evolutions
status: completed
type: feature
priority: normal
created_at: 2026-02-07T18:55:07Z
updated_at: 2026-02-07T18:57:25Z
---
Add nullable region field to evolutions for regional form evolution filtering (e.g., Pikachu → Alolan Raichu only in Alola). Full-stack: DB migration, model, schemas, API, seeder, Go tool, frontend types/API/hook/components.