The original iPodderX layout: toolbar, places, item table, Files pane

- A toolbar across the window with the original's groups: add and
  unsubscribe, play, mark read and keep for the selected item, scan, a
  search box for what is showing, and Settings and Log (admins only).
- Directory, Popular and All Subscriptions sit at the top of the feed
  list and open in the main pane; the Popular and Directory buttons and
  their dialogs are gone.
- All Subscriptions lists every item from every feed you subscribe to:
  GET /api/entries, the per-feed query with its scope widened. The
  enclosure lookup after it matches files to rows by feed and guid, since
  a page can now span feeds.
- Items are a table (unread, kept, item, feed, file, published) with a
  Files pane beside it, the text below, and a status bar with totals. On
  a phone the files follow the text and the table is title and date.
- Tests: enclosures are checked in #files; the toolbar's read, keep and
  play act on the selected item; All Subscriptions holds only your feeds.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016HdTEWQNrzyFULijigkmMn

docs/architecture.md

@@ -105,6 +105,7 @@ else a `401`.
 | `GET /api/feeds`, `POST /api/feeds` | your subscriptions; subscribe |
 | `PATCH /api/feeds/{id}`, `DELETE /api/feeds/{id}` | your settings or (admin) the feed's; unsubscribe |
 | `GET /api/feeds/{id}/entries` | paged, filtered, searchable |
+| `GET /api/entries` | the same, across every feed you subscribe to (All Subscriptions) |
 | `POST /api/feeds/{id}/read-all`, `POST /api/feeds/{id}/download-latest` | |
 | `POST /api/entries/{feed}/{guid}/flags`, `…/position` | your read, starred, position |
 | `POST /api/enclosures/{id}/download`, `DELETE /api/enclosures/{id}` | `?force=true` overrides the shared-file warning |