refactor: 删除未使用的 pkmn.ts 辅助函数

- 删除 getMove、getAbility、getType、getPrimaryAbility（无生产代码引用）
- 同步删除对应的 pkmn.test.ts 测试

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/pokemon/src/__tests__/pkmn.test.ts

@@ -1,5 +1,5 @@
 import { describe, test, expect } from 'bun:test'
-import { FROM_DEX_STAT, TO_DEX_STAT, mapBaseStats, mapGenderRatio, getPrimaryAbility } from '../data/pkmn'
+import { FROM_DEX_STAT, TO_DEX_STAT, mapBaseStats, mapGenderRatio } from '../data/pkmn'
 
 describe('FROM_DEX_STAT', () => {
 	test('maps all 6 stats', () => {
@@ -44,13 +44,3 @@ describe('mapGenderRatio', () => {
 		expect(mapGenderRatio({ M: 0.5, F: 0.5 })).toBe(4)    // 50% F → 4
 	})
 })
-
-describe('getPrimaryAbility', () => {
-	test('returns first ability', () => {
-		expect(getPrimaryAbility({ '0': 'Overgrow', '1': 'Chlorophyll' })).toBe('overgrow')
-	})
-
-	test('returns empty string for missing ability', () => {
-		expect(getPrimaryAbility({})).toBe('')
-	})
-})

packages/pokemon/src/data/pkmn.ts

@@ -23,21 +23,6 @@ export function getSpecies(id: string) {
 	return gen.species.get(id)
 }
 
-/** Query move from Dex */
-export function getMove(id: string) {
-	return gen.moves.get(id)
-}
-
-/** Query ability from Dex */
-export function getAbility(id: string) {
-	return gen.abilities.get(id)
-}
-
-/** Query type from Dex */
-export function getType(id: string) {
-	return gen.types.get(id)
-}
-
 /** Map Dex baseStats to our StatName format */
 export function mapBaseStats(dexStats: { hp: number; atk: number; def: number; spa: number; spd: number; spe: number }): Record<StatName, number> {
 	const result = {} as Record<StatName, number>
@@ -52,8 +37,3 @@ export function mapGenderRatio(genderRatio?: { M: number; F: number } | string):
 	if (!genderRatio || typeof genderRatio === 'string') return -1 // genderless
 	return Math.round(genderRatio.F * 8)
 }
-
-/** Get primary ability ID from Dex abilities object */
-export function getPrimaryAbility(abilities: Record<string, string>): string {
-	return abilities['0']?.toLowerCase() ?? ''
-}