perf: pre-generate Bible verse data and reduce DOM via conditional rendering

- Extract Bible lookup logic into shared src/lib/server/bible.ts module
- Add build script to pre-generate all 20 mystery verse lookups as static data,
  eliminating runtime API calls on rosary page load
- Update Prayer.svelte to pass showLatin/urlLang as snippet parameters; all 14
  prayer components now conditionally render only visible language elements
  instead of hiding via CSS
- Extract 4 inline mystery selector SVGs into MysteryIcon.svelte component
- Remove unused CSS selectors from angelus page

scripts/generate-mystery-verses.ts

@@ -0,0 +1,54 @@
+/**
+ * Pre-generates Bible verse data for all rosary mystery references.
+ * Run with: npx vite-node scripts/generate-mystery-verses.ts
+ */
+import { writeFileSync } from 'fs';
+import { resolve } from 'path';
+import { lookupReference } from '../src/lib/server/bible';
+import { mysteryReferences } from '../src/lib/data/mysteryDescriptions';
+import type { MysteryDescription, VerseData } from '../src/lib/data/mysteryDescriptions';
+
+const tsvPath = resolve('static/allioli.tsv');
+
+const mysteryDescriptions: Record<string, MysteryDescription[]> = {};
+
+for (const [mysteryType, references] of Object.entries(mysteryReferences)) {
+	const descriptions: MysteryDescription[] = [];
+
+	for (const ref of references) {
+		const result = lookupReference(ref.reference, tsvPath);
+
+		let text = '';
+		let verseData: VerseData | null = null;
+
+		if (result && result.verses.length > 0) {
+			text = `«${result.verses.map((v) => v.text).join(' ')}»`;
+			verseData = {
+				book: result.book,
+				chapter: result.chapter,
+				verses: result.verses
+			};
+		} else {
+			console.warn(`No verses found for: ${ref.reference}`);
+		}
+
+		descriptions.push({
+			title: ref.title,
+			reference: ref.reference,
+			text,
+			verseData
+		});
+	}
+
+	mysteryDescriptions[mysteryType] = descriptions;
+}
+
+const output = `// Auto-generated by scripts/generate-mystery-verses.ts — do not edit manually
+import type { MysteryDescription } from './mysteryDescriptions';
+
+export const mysteryVerseData: Record<string, MysteryDescription[]> = ${JSON.stringify(mysteryDescriptions, null, '\t')};
+`;
+
+const outPath = resolve('src/lib/data/mysteryVerseData.ts');
+writeFileSync(outPath, output, 'utf-8');
+console.log(`Wrote mystery verse data to ${outPath}`);