Analytics: unique visitors this week + probed-URLs list; Scripture Index: most-studied strip + print; admin warning for unparseable passage references; v2.44.0

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

src/App.tsx

@@ -2735,7 +2735,7 @@ function ScriptureIndexPage({ content }: { content: SiteContent }) {
 
   // Merge entries that share the same reference (a study lesson and an episode can both
   // cover the same passage) into one row, then group rows by book in canonical Bible order.
-  const { bookGroups, otherRows } = useMemo(() => {
+  const { bookGroups, otherRows, topRows } = useMemo(() => {
     const rowMap = new Map<string, ScriptureRow>()
     const order: string[] = []
     for (const entry of entries) {
@@ -2789,7 +2789,12 @@ function ScriptureIndexPage({ content }: { content: SiteContent }) {
         rows: groupsByBook.get(id)!.sort((a, b) => a.chapter - b.chapter || a.verseStart - b.verseStart),
       }))
     other.sort((a, b) => a.displayRef.localeCompare(b.displayRef))
-    return { bookGroups: groups, otherRows: other }
+    // Passages covered by the most lessons/episodes (needs at least two sources to be worth highlighting)
+    const top = [...rowMap.values()]
+      .filter(r => r.bookId && r.sources.length >= 2)
+      .sort((a, b) => b.sources.length - a.sources.length || order.indexOf(a.key) - order.indexOf(b.key))
+      .slice(0, 6)
+    return { bookGroups: groups, otherRows: other, topRows: top }
   }, [entries])
 
   // Apply the search box and filters
@@ -2886,6 +2891,7 @@ function ScriptureIndexPage({ content }: { content: SiteContent }) {
       <PageBanner eyebrow="Reference" title="Scripture Index" desc="Every passage covered across our studies and episodes, organized by Scripture reference. Find the lesson or episode for any verse." />
       <main className="si-main">
         <div className="section-inner">
+          <h1 className="si-print-title">Scripture Index — {siteTitle}</h1>
           {loading ? (
             <p className="si-note">Loading…</p>
           ) : !hasContent ? (
@@ -2915,6 +2921,20 @@ function ScriptureIndexPage({ content }: { content: SiteContent }) {
                 </div>
               </div>
 
+              {!filtering && topRows.length > 0 && (
+                <div className="si-top" aria-label="Most-studied passages">
+                  <h2 className="si-top-title">Most-studied passages</h2>
+                  <div className="si-top-list">
+                    {topRows.map(r => (
+                      <button key={r.key} type="button" className="si-top-item" onClick={() => setQuery(r.displayRef)}>
+                        <span className="si-top-ref">{r.displayRef}</span>
+                        <span className="si-top-count">{r.sources.length} sources</span>
+                      </button>
+                    ))}
+                  </div>
+                </div>
+              )}
+
               {bookGroups.length > 1 && (
                 <div className="si-books" role="group" aria-label="Books covered">
                   {bookGroups.map(g => (
@@ -2938,6 +2958,7 @@ function ScriptureIndexPage({ content }: { content: SiteContent }) {
                   )}
                   <button type="button" className="si-link" onClick={() => setAll(true)}>Expand all</button>
                   <button type="button" className="si-link" onClick={() => setAll(false)}>Collapse all</button>
+                  <button type="button" className="si-link" onClick={() => { setAll(true); window.setTimeout(() => window.print(), 150) }}>Print index</button>
                 </span>
               </div>