feat: implement search-first Bible navigator with touch optimization

Generated with [Claude Code](https://claude.com/claude-code)

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

__tests__/lib/bible-search.test.ts

@@ -0,0 +1,36 @@
+import { searchBooks, parseReference } from '@/lib/bible-search'
+
+describe('searchBooks', () => {
+  it('returns results for exact book prefix', () => {
+    const results = searchBooks('Genesis')
+    expect(results.length).toBeGreaterThan(0)
+    expect(results[0].bookName).toBe('Genesis')
+  })
+
+  it('parses "Book Chapter" format', () => {
+    const results = searchBooks('Genesis 5')
+    expect(results[0].chapter).toBe(5)
+  })
+
+  it('works with abbreviations', () => {
+    const results = searchBooks('Gen 1')
+    expect(results[0].bookName).toBe('Genesis')
+  })
+
+  it('returns empty array for empty query', () => {
+    expect(searchBooks('').length).toBe(0)
+  })
+})
+
+describe('parseReference', () => {
+  it('parses full book name with chapter', () => {
+    const result = parseReference('Genesis 3')
+    expect(result?.bookId).toBe(1)
+    expect(result?.chapter).toBe(3)
+  })
+
+  it('defaults to chapter 1', () => {
+    const result = parseReference('Genesis')
+    expect(result?.chapter).toBe(1)
+  })
+})