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/analytics.js

@@ -20,6 +20,7 @@ import {
   buildLastNDaysStats,
   shouldCountHit,
   recordHit,
+  isKnownSitePath,
   getStudyCatalog,
 } from '../study-helpers.js'
 
@@ -260,6 +261,7 @@ export function register(app) {
     const ip = getClientIp(req)
     if (!pageviewAllowed(ip)) { res.json({ ok: false, reason: 'rate-limited' }); return }
     const rawPath = typeof req.body?.path === 'string' ? req.body.path : '/'
+    if (!isKnownSitePath(rawPath)) { res.json({ ok: false, reason: 'unknown-path' }); return }
     const rawReferrer = typeof req.body?.referrer === 'string' ? req.body.referrer : ''
     recordHit(rawPath, false)
     queueHitStatsWrite()