Hold episode highlights until the episode is in the Spotify feed; auto-fill study lesson audio from the feed by season + episode; v2.19.0

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

src/AdminPage.tsx

@@ -2762,6 +2762,7 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
         {
           id: Date.now().toString(36),
           lane: 'primary' as const,
+          holdUntilReleased: true,
           title: '',
           episodeNumber: '',
           summary: '',
@@ -2778,7 +2779,7 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
     }))
   }
 
-  function updatePodcastLink(id: string, field: keyof PodcastFeaturedLink, value: string) {
+  function updatePodcastLink(id: string, field: keyof PodcastFeaturedLink, value: string | boolean) {
     setForm(f => ({
       ...f,
       podcastFeaturedLinks: (f.podcastFeaturedLinks ?? []).map(link => link.id === id ? { ...link, [field]: value } : link),
@@ -5151,6 +5152,22 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
                         </select>
                         <p className="admin-field-help">Groups this highlight under its series on the Episodes page. When a series ends, its highlights move onto that book&apos;s Finished Books page. General highlights stay.</p>
                       </div>
+                      {activeHighlight.lane !== 'general' && (
+                        <div className="admin-field">
+                          <label htmlFor={`podcast-hold-${activeHighlight.id}`}>
+                            <input
+                              id={`podcast-hold-${activeHighlight.id}`}
+                              type="checkbox"
+                              checked={activeHighlight.holdUntilReleased === true}
+                              onChange={e => updatePodcastLink(activeHighlight.id, 'holdUntilReleased', e.target.checked)}
+                            />{' '}
+                            Publish when the episode is released on Spotify
+                          </label>
+                          <p className="admin-field-help">
+                            Hidden on the site until this lane&apos;s season number and the episode number below appear in your Spotify feed (checked every few minutes). Needs an episode number. Set each lane&apos;s season number on the Episode Workflow page.
+                          </p>
+                        </div>
+                      )}
                       <div className="admin-field">
                         <label htmlFor={`podcast-ep-${activeHighlight.id}`}>Episode Number</label>
                         <input id={`podcast-ep-${activeHighlight.id}`} type="text" placeholder="e.g. 42" value={activeHighlight.episodeNumber ?? ''} onChange={e => updatePodcastLink(activeHighlight.id, 'episodeNumber', e.target.value)} />
@@ -6185,6 +6202,7 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
                             <option value={activeLesson.audioEmbedUrl}>{activeLesson.audioEmbedUrl}</option>
                           )}
                         </select>
+                        <p className="admin-field-help">Leave this as &quot;No audio&quot; to fill it in automatically: once this lane&apos;s season number and the Episode # below appear in your Spotify feed, the lesson uses that episode&apos;s audio.</p>
                       </div>
                       <div className="admin-field">
                         <label htmlFor={`sl-released-${activeLesson.id}`}>Release Date (optional)</label>