Episode scripts: file by season + episode so numbers can repeat per book; search labels for current series; v2.9.6

- Scripts keyed "<season>-<episode>" (legacy ones migrate on first start; unseasoned ones keep their plain key)
- Season backfill handles episode numbers shared across seasons (title match fallback)
- Fix: "Backfill seasons from RSS" was swallowed by the upload route
- Global search labels script results with the title of the series playing now (both lanes), not just finished books

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

src/hooks/useGlobalSearch.ts

@@ -25,6 +25,7 @@ interface PublicQuestion {
 }
 
 interface ScriptSearchResult {
+  key?: string
   episodeNumber: string
   title: string
   filename: string
@@ -121,8 +122,11 @@ export function useGlobalSearch(content: SiteContent) {
     for (const book of content.finishedBooks ?? []) {
       if (book.season != null && book.title) map.set(String(book.season), book.title)
     }
+    // The series playing now (one or two at a time), so their scripts show a title too
+    if (content.seriesSeason != null && content.seriesTitle) map.set(String(content.seriesSeason), content.seriesTitle)
+    if (content.secondSeries?.season != null && content.secondSeries.title) map.set(String(content.secondSeries.season), content.secondSeries.title)
     return map
-  }, [content.finishedBooks])
+  }, [content.finishedBooks, content.seriesSeason, content.seriesTitle, content.secondSeries])
 
   // Debounced server-side script search — runs whenever query changes
   useEffect(() => {
@@ -138,7 +142,7 @@ export function useGlobalSearch(content: SiteContent) {
           const results = (data.results ?? []).map(r => {
             const seasonLabel = r.season ? (seasonTitleMap.get(r.season) ?? `Season ${r.season}`) : null
             return {
-              id: `script-${r.episodeNumber}`,
+              id: `script-${r.key ?? r.episodeNumber}`,
               type: 'episode' as const,
               title: r.title,
               subtitle: [`Episode ${r.episodeNumber}`, seasonLabel, 'Script'].filter(Boolean).join(' · '),