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/AdminPage.tsx

@@ -1670,7 +1670,7 @@ export default function AdminPage({ content, onSave, onLogout }: Props) {
   const [commentSearch, setCommentSearch] = useState('')
 
   // Episode scripts state
-  const [scriptsList, setScriptsList] = useState<Array<{ episodeNumber: string; title: string; filename: string; season: string | null; uploadedAt: string | null; wordCount: number }>>([])
+  const [scriptsList, setScriptsList] = useState<Array<{ key: string; episodeNumber: string; title: string; filename: string; season: string | null; uploadedAt: string | null; wordCount: number }>>([])
   const [scriptsLoading, setScriptsLoading] = useState(false)
   const [scriptUploadEpisode, setScriptUploadEpisode] = useState('')
   const [scriptUploadTitle, setScriptUploadTitle] = useState('')
@@ -3148,7 +3148,7 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
       })
       const data = await res.json()
       if (!res.ok) { setScriptUploadMsg(data.message ?? 'Upload failed.'); return }
-      setScriptUploadMsg(`✓ Episode ${scriptUploadEpisode} uploaded — ${data.wordCount?.toLocaleString()} words indexed.`)
+      setScriptUploadMsg(`✓ Episode ${scriptUploadEpisode}${scriptUploadSeason.trim() ? ` (Season ${scriptUploadSeason.trim()})` : ''} uploaded — ${data.wordCount?.toLocaleString()} words indexed.`)
       setScriptUploadEpisode('')
       setScriptUploadTitle('')
       setScriptUploadSeason('')
@@ -3181,12 +3181,12 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
     }
   }
 
-  async function handleDeleteScript(episodeNumber: string) {
-    if (!confirm(`Remove script for Episode ${episodeNumber}?`)) return
+  async function handleDeleteScript(key: string, label: string) {
+    if (!confirm(`Remove script for ${label}?`)) return
     try {
-      const res = await fetch(`/api/admin-episode-scripts/${encodeURIComponent(episodeNumber)}`, { method: 'DELETE' })
+      const res = await fetch(`/api/admin-episode-scripts/${encodeURIComponent(key)}`, { method: 'DELETE' })
       if (!res.ok) { alert('Failed to delete script.'); return }
-      setScriptsList(prev => prev.filter(s => s.episodeNumber !== episodeNumber))
+      setScriptsList(prev => prev.filter(s => s.key !== key))
     } catch { alert('Failed to delete script.') }
   }
 
@@ -5684,7 +5684,7 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
                   />
                 </div>
                 <div className="admin-field">
-                  <label htmlFor="script-season">Season <span style={{ color: '#5a5440', fontWeight: 400 }}>(optional — matches the podcast season number)</span></label>
+                  <label htmlFor="script-season">Season <span style={{ color: '#5a5440', fontWeight: 400 }}>(recommended — scripts are filed by season + episode, so episode numbers can repeat in each book)</span></label>
                   <input
                     id="script-season"
                     type="number"
@@ -5749,14 +5749,14 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
                   {scriptsList
                     .filter(script => scriptSeasonFilter === 'all' || script.season === scriptSeasonFilter)
                     .map(script => (
-                      <div key={script.episodeNumber} className="admin-script-row">
+                      <div key={script.key} className="admin-script-row">
                         <div className="admin-script-row-info">
                           <span className="admin-script-ep">Ep. {script.episodeNumber}</span>
                           {script.season && <span className="admin-script-ep">Season {script.season}</span>}
                           <span className="admin-script-title">{script.title}</span>
                           <span className="admin-script-meta">{script.wordCount.toLocaleString()} words · {script.filename}</span>
                         </div>
-                        <button type="button" className="btn-admin-remove" onClick={() => handleDeleteScript(script.episodeNumber)}>Remove</button>
+                        <button type="button" className="btn-admin-remove" onClick={() => handleDeleteScript(script.key, `Episode ${script.episodeNumber}${script.season ? ` (Season ${script.season})` : ''}`)}>Remove</button>
                       </div>
                     ))}
                 </div>