perf(web): meta resolves references without loading text

meta.scripture.guide lists reference blocks only, but the lookup still
read verse text, chapter rows, headings, the chapter heading and nav for
every block. On bom that put meta at 1.38x live's p50 (50 vs 36 ms),
outside the cutover gate's 1.25x. Return right after the reference
resolves when the format is meta.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: kckern

apps/web/src/services/ScriptureLookupService.js

@@ -145,7 +145,8 @@ export class ScriptureLookupService {
       reference = new Reference({ query: referenceString, normalized: '', verseIds: [] });
     }
 
-    if (reference.isEmpty) {
+    // meta lists reference blocks only (MetaPresenter): no text, headings or navigation to load
+    if (reference.isEmpty || config.outputFormat === 'meta') {
       return new ScriptureResult({ reference, verses: [], headings: [], config });
     }
 

apps/web/test/unit/scriptureLookup.test.js

@@ -341,3 +341,15 @@ describe('lookup: a range across a book end', async () => {
     expect(d.verses.map(v => v.book ?? d.book)).toEqual(['Malachi', 'Malachi', 'Matthew', 'Matthew']);
   });
 });
+
+describe('lookup for meta', async () => {
+  // meta lists reference blocks only (MetaPresenter): no verse text, headings or navigation
+  const { Reference } = await import('../../src/domain/entities/Reference.js');
+  const refs = { parse: () => new Reference({ query: 'john.3.16', normalized: 'John 3:16', verseIds: [26137], _book: 'John' }) };
+  const untouched = new Proxy({}, { get: (_, name) => () => { throw new Error(`repository read: ${String(name)}`); } });
+  test('resolves the reference without reading verses or headings', async () => {
+    const r = await new ScriptureLookupService(refs, untouched, untouched).lookup('john.3.16', { outputFormat: 'meta' });
+    expect(r.reference.verseIds).toEqual([26137]);
+    expect(r.reference.book).toBe('John');
+  });
+});