Fix Scripture Index doubled/unparseable refs, Titus passage fetch 400, Ko-fi QR 404, auto-load study comments; stop probe URLs inflating Real Hits, real 404 status for unknown URLs; v2.43.1

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

server/routes/public.js

@@ -16,7 +16,7 @@ import {
 } from '../config.js'
 import { state } from '../state.js'
 import { loadSiteContentFile } from '../data.js'
-import { sanitizeRedirectRules } from '../study-helpers.js'
+import { sanitizeRedirectRules, isKnownSitePath } from '../study-helpers.js'
 import { fetchAllEpisodes } from './episodes.js'
 import { fetchNuggetsEpisodes } from './nuggets.js'
 import { BIBLE_BOOKS } from '../../shared/bible-books.js'
@@ -217,7 +217,8 @@ export function register(app) {
         if (!sec.id || !sec.reference || !sec.releasedAt) continue
         if (new Date(sec.releasedAt) > cutoff) continue
         entries.push({
-          reference: `${bookName} ${sec.reference}`,
+          // Section references often already include the book ("Titus 1:1-2"); only prepend when they don't
+          reference: /^\s*(?:[1-3]\s*)?[A-Za-z]/.test(sec.reference) ? sec.reference.trim() : `${bookName} ${sec.reference}`,
           sourceType: 'study',
           sourceTitle: s.title || s.slug,
           sectionTitle: sec.title || '',
@@ -274,6 +275,8 @@ export function register(app) {
   app.use(async (_req, res) => {
     try {
       const html = await readFile(INDEX_FILE, 'utf8')
+      // Unknown URLs still render the app's "Page not found" screen, but with a real 404 status
+      if (!isKnownSitePath(_req.path)) res.status(404)
       res.type('html').send(injectSeoIntoHtml(html, state.cachedSiteContent))
     } catch {
       res.status(503).send('Frontend build not found. Run "npm run build" first.')