- /podcast/feed.xml: valid podcast RSS with iTunes tags and audio
enclosures, populated only by episodes that have real audio
- Podcast index: subscribe row with the feed address; episode rows gain
guests and duration; empty state points at the live feed
- Episode pages: guests/duration line, framed player with download link
- Front page: compact podcast rail appears once the first episode exists
- Nav shows Podcast when the feed is configured; footer links the feed
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>