Lay the Directory out as Apple's is, with the most subscribed in it (#124, #126, #128)

The Directory was one grid of every listed feed, 1,472 in production, under Podcasts and Blogs
tabs, a wall of about 30 category buttons and a sort menu, with a picked category's
subcategories appearing as a second row of buttons that looked like the first. It read as a
list to scroll, and the two rows were hard to tell apart.

It opens now on the ten most subscribed feeds, ranked, and the categories as tiles, each with
three of its shows' covers fanned in its corner on the tint its initials would get, so the
shows colour it and no theme's palette changes. A category has a page of its own: its most
subscribed, its subcategories with how many each holds, and its grid. See all is every feed,
as the grid was. Podcasts or Blogs holds across every page. Popular, the ten most subscribed,
had a place of its own in the feed list; it is the Directory's first section instead, and its
key, g p, is gone. /api/popular stays for scripts.

The search box finds a feed in the Directory by name (#126). It said "Search items…" there and
did nothing, since loadEntries returns early for a place that lists feeds.

A feed you do not subscribe to opens a page of its own (#128): its cover, category (a link to
that category's page), how many here subscribe, a subscribe button and its latest twenty items,
each with its title, linking to the post where it has one, its first lines, date and length.
Before, a click on it did nothing; only its + did. The items come from GET /api/directory/{id},
which answers only for a feed the Directory lists, so a guessed id reaches nothing private, and
carries no file or its address. The feed's own description would belong at the top, but the
database does not keep one.

Every tile and chart row takes the keyboard, as the feed list's rows do. Feed text made plain
keeps a space at a line break or a paragraph's end, which glued "2010)Recorded" together.

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

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- In the Directory, a feed you do not subscribe to opens a page of its own: its cover, its category, how many people here subscribe, and its latest episodes or posts, with a button to subscribe. Before, only its subscribe button did anything.
 - Feeds that don't set a category, as most blogs don't, now get one automatically, so they show up under a category in the Directory. iPX picks the closest of Apple's podcast categories from the feed's title and latest headlines. This happens once per feed: the first time a new feed is read, or for a feed you already had, the next time you force a refresh. It needs `TYPESAFE_KEY` set. An admin can change the category in the feed's settings.
 - Artwork is kept on disk once shown and loads from iPX, not from each publisher's server: fast after the first time, and still there when the publisher's server is not. The admin page sets how much is kept (500 MB by default).
 - `ipx add --list --category News <url>` puts a feed in the Directory for anyone to subscribe to,
@@ -19,7 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
-- The Directory browses as Apple's does: a row of categories, and once one is picked, a row of its subcategories (Tech News under News, Video Games under Leisure), instead of one row mixing both.
+- The Directory is laid out as Apple's is. It opens on the ten most subscribed feeds, ranked, and the categories as tiles showing some of their shows' covers. A category opens a page of its own with its most subscribed feeds, its subcategories (Tech News under News, Video Games under Leisure) and its feeds; See all lists every one. This replaces the grid of every feed under rows of category buttons.
+- The most subscribed feeds are the Directory's first section instead of a place of their own: Popular is gone from the feed list, and so is its key, g p.
 - A pinned item in a list wears the same disc as a pinned feed, in the theme's accent, instead of a plain solid pin.
 - The Directory can be sorted by name, A to Z or Z to A, or by most subscribers. It still opens A to Z.
 - API tokens: in Settings, make a named token that lets a script or an agent use iPX as you, sent as `Authorization: Bearer`, and revoke it there. Each shows when it was last used.
@@ -27,13 +29,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - A feed that has moved for good (a permanent redirect) is followed to its new address, which iPX then reads from, and says so in the log as `feed_moved`. A temporary redirect changes nothing.
 - The daemon sleeps until the next feed is due, at most ten minutes, instead of looking every minute; refreshing or adding a feed still wakes it at once.
 - A pinned feed's pin sits on the corner of its artwork, as a failing feed's mark does, instead of before its name.
-- The Directory lists feeds nobody subscribes to yet; Popular still lists what people subscribe to.
+- The Directory lists feeds nobody subscribes to yet; its most subscribed still lists what people subscribe to.
   A feed nobody subscribes to is checked once a day, and at once when someone subscribes. A
   listed feed downloads nothing until someone subscribes.
 - The Directory loads faster: it asked the database three questions per feed.
 
 ### Fixed
 
+- The search box finds a feed in the Directory by name. It did nothing there.
 - Feeds that file themselves under Apple's Football or Soccer show under Sports, and those under the old Software How-To under Technology, instead of as categories of their own.
 - The download queue, in `ipx status`, `/api/status` and the dashboard, counts only what iPX will download on its own: older episodes beyond a show's limit, and files of feeds that do not download automatically, are listed but no longer counted as waiting.
 - Artwork published on http is stored on https when its host serves it there, so the page loads it directly; the rest still comes through iPX.