Drop verse-number prefixes from scripture-sourced Matins readings

resolvePassages() prepended each verse's number ("1 Et factum est...")
when joining scripture verses into continuous reading text — visible
today in Job's Matins reading. Not wanted; join the verse text alone.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Je2mXNHoXmi1DS3xEL67rH

tests/propers/octave-readings.test.ts

@@ -34,8 +34,8 @@ describe('getOctaveReading', () => {
     const reading = getOctaveReading('all-saints', 2);
     const paragraphs = reading?.text.la?.split('\n\n') ?? [];
     expect(paragraphs.length).toBe(3);
-    expect(paragraphs[0]).toContain('1 Et factum est');
-    expect(reading?.text.en).toContain('1 Now it came to pass');
+    expect(paragraphs[0]).toContain('Et factum est');
+    expect(reading?.text.en).toContain('Now it came to pass');
   });
 
   it('resolves a scripture passage reading that spans two chapters', () => {