feat: 集成 Battle tab 到 BuddyPanel，重命名 data/ 为 dex/ 规避 gitignore

- BuddyPanel 新增 Battle tab，BattleFlow 加 isActive 控制
- BattleFlow configSelect 阶段支持 ↑↓ 选择物种
- packages/pokemon/src/data/ → dex/，解决根 .gitignore 匹配问题
- 全量 Tab→2空格 缩进转换

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

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

@@ -3,26 +3,26 @@ import { getFallbackSprite } from '../sprites/fallback'
 import { ALL_SPECIES_IDS } from '../types'
 
 describe('getFallbackSprite', () => {
-	test('returns 5 lines for every species', () => {
-		for (const id of ALL_SPECIES_IDS) {
-			const sprite = getFallbackSprite(id)
-			expect(sprite.length).toBe(5)
-		}
-	})
+  test('returns 5 lines for every species', () => {
+    for (const id of ALL_SPECIES_IDS) {
+      const sprite = getFallbackSprite(id)
+      expect(sprite.length).toBe(5)
+    }
+  })
 
-	test('returns pikachu fallback for unknown species', () => {
-		const sprite = getFallbackSprite('unknown' as any)
-		expect(sprite).toEqual(getFallbackSprite('pikachu'))
-	})
+  test('returns pikachu fallback for unknown species', () => {
+    const sprite = getFallbackSprite('unknown' as any)
+    expect(sprite).toEqual(getFallbackSprite('pikachu'))
+  })
 
-	test('each line has consistent width', () => {
-		for (const id of ALL_SPECIES_IDS) {
-			const sprite = getFallbackSprite(id)
-			const widths = sprite.map(line => line.length)
-			// All lines should be roughly the same width
-			const maxWidth = Math.max(...widths)
-			const minWidth = Math.min(...widths)
-			expect(maxWidth - minWidth).toBeLessThanOrEqual(2)
-		}
-	})
+  test('each line has consistent width', () => {
+    for (const id of ALL_SPECIES_IDS) {
+      const sprite = getFallbackSprite(id)
+      const widths = sprite.map(line => line.length)
+      // All lines should be roughly the same width
+      const maxWidth = Math.max(...widths)
+      const minWidth = Math.min(...widths)
+      expect(maxWidth - minWidth).toBeLessThanOrEqual(2)
+    }
+  })
 })