Remove unused minus icon; update TODO

Audited the ICON set for consistency: minus was defined but never
referenced anywhere (circleMinus already covers Unsubscribe).
Everything else checked out.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019Tk3nAVF6n4dtjQS17FRFr

TODO.md

@@ -2,56 +2,48 @@
 
 ## Errors in the log
 
-From the production log and the feeds' stored errors on 2026-09-13. The Docker log only reached back
-to 12:32 UTC, so the list comes from `feeds.last_error`: 57 of 1,059 feeds. None of it is ipx's
-User-Agent; a browser gets the same answers.
-
-- [x] **Stop scanning an OPML's feeds once nobody subscribes to it.** 55 of the 57 are feeds from
-  `davewiner` (lists.opml.org/davefeeds.xml). The list left `config.toml` about 14 hours before this
-  was written, but its 922 feeds are still in the database and still scanned every hour, with
-  auto-download on: `subscriptions()` adds every derived feed, and with no parent to copy from,
-  `auto_download` falls back to `true` (`src/main.rs:937`). `docs/users.md` says a feed stops being
-  scanned when its last subscriber leaves. Skip a derived feed whose parent is not in config, and
-  when the last subscriber leaves an OPML, treat its feeds the way `sync_group` treats ones the list
-  dropped: remove those with nothing downloaded, mark the rest orphaned. `remove_feed` and `ipx rm`
-  both leave them behind today. (`src/main.rs`, `src/web.rs`)
-- [x] **Read feeds with a bare `&`.** kcpw has `<link>https://kcpw.org/?post_type=post&p=125715</link>`,
-  and both feedland feeds have the same fault. Strict XML refuses them; browsers and other readers do
-  not. When `feed::parse` fails, try once more with every `&` that does not start an entity written
-  as `&amp;`. Nobody subscribes to these three now, but the next feed like them will fail the same
-  way. (`src/feed.rs`)
-- [x] **Say what came back when it is not a feed.** Thirteen errors read "not RSS (the input did not
-  begin with an rss tag) and not Atom (...)". Each one checked was a web page: the feed moved and its
-  old URL redirects to the site, or the domain lapsed. Say "got a web page, not a feed", and when the
-  page links a feed (`<link rel="alternate" type="application/rss+xml">`), name it. That link found
-  the new feed for om.co, ms.now, Letters of Note, the Daily Dot, Hell Gate, The Frame Lab and
-  Daily Kos. A `202` with an empty body (British Antarctic Survey) should read as "nothing yet", not
-  as a parse failure. (`src/feed.rs`)
-- [x] **Show a publisher's error in the UI.** Today a failing feed shows its raw error in red only
-  once you open it (`web/index.html:877`, `:960`); the OPML view marks a failing child "error"
-  (`:988`), and the sidebar shows nothing. Mark a failing feed in the sidebar too, and say whose
-  problem it is and what to do, in plain words: a 404 means the publisher took the feed down or moved
-  it, 401 and 403 that the site refuses ipx, 402 that the feed needs a paid plan, a name that no
-  longer resolves that the site is gone, and a web page instead of a feed that it moved (with the new
-  URL when the page links one). Offer Unsubscribe, or Use the new address. Keep timeouts, 5xx and
-  429 out of it, and flag a feed only once it has failed for a day: macmanx failed once and read
-  fine an hour later. That needs the time a feed started failing, kept beside `last_error` and
-  cleared when a check succeeds. (`web/index.html`, `src/db.rs`, `src/main.rs`)
 - [ ] **Westenberg.** The only failing feed anyone subscribes to. The Hacker News stars list still
   gives `joanwestenberg.com/rss`, which is a 404; the feed is now `joanwestenberg.com/feed`.
   Nothing for ipx to fix; subscribe to the new URL directly.
 
-## Other Fixes and Features
+## Icons
 
-- [x] Remember which feed is selected and view (all, unread, flagged, etc) user as selected between visits. If unknown default to All Subscriptions
-- [x] When clicking any link it should open in a new tab
-- [x] In mobile (iOS) sometimes the top line items like the hamburger menu are not clickable unless you do a hard refresh — likely fixed (100dvh instead of 100vh), unverified on a real device; reopen if it still happens
-- [x] video files play as audio files, they should play as video.
-- [x] Move Light/Dark/Classic options to user settings. Include an Auto mode that uses system preferences for light/dark modes
-- [x] Below Popular, have a currently listening section to show what podcasts have been started and not finnished
-- [x] Update subscribe/unsubscribe icons to be circle-minus (unsubscribe) and circle-check (subscribe)
-- [x] If I'm on the Unread tab, and I click to read an item the entry in the list will disappear. it should remain until I click to another item.
+- [x] **Audit the icon set for consistency.** Checked every glyph in `ICON` (`web/index.html`)
+  against its source, weight, sizing, and every place it's used — both the `${ICON.x}` template
+  calls and the `data-icon="x"` lookups the startup loop wires up (`web/index.html:713`). Found one
+  real problem: `minus`, a bare uncircled minus glyph, was defined but never referenced anywhere;
+  `circleMinus` already covers the one place a minus-shaped icon is used (Unsubscribe). Removed it.
+  Everything else checked out: `flag`'s regular weight against `flagOn`'s solid is the standard
+  outline/filled toggle idiom, not a mismatch; icon sizing is one shared 16px base rule with three
+  narrowly-scoped overrides; `caret` is deliberately reused (not duplicated) for both the folder
+  triangle and the sort arrow, rotated correctly per context; play/pause swapping is symmetric.
+  (`web/index.html`)
 
 ## Directory Overhaul
 
-- [ ] Directory needs to be more functional, with categories and a more interesting layout. use /frontend-design to help
+- [ ] **Give feeds a real category, from the feed itself.** `ParsedFeed` only carries per-episode
+  `categories` (`src/feed.rs:24`); nothing at the channel level survives parsing today, so there is
+  nothing to browse the directory by. Parse `<itunes:category>` (and its `<itunes:subcategory>` if
+  present) off the channel the same way entry categories already are, keep the first one a feed
+  reports rather than building a multi-tag facet, and add it to `FeedSummary` and the feeds table
+  via a migration. Most feeds will not carry one; a feed with none counts only under "All".
+  (`src/feed.rs`, `src/db.rs`)
+- [ ] **Expose category on `/api/popular` and `/api/directory`.** `PopularRow` (`src/web.rs`) is id,
+  title, image, subscribers, subscribed today; add `category: Option<String>` once a feed carries
+  one, so the client can group and filter without a second request.
+- [ ] **Replace the flat alphabetical list with a category rail over an artwork grid.** Today
+  Directory is a single-column list of rows: a thumbnail, a title, a subscriber count, a subscribe
+  button (`renderListed`/`listFeeds`, `web/index.html:1649`). Put a horizontal row of category chips
+  above it — "All" plus whatever categories actually occur in the catalogue, never an empty one —
+  and turn the list itself into a grid of square cover-art tiles with the title underneath: podcast
+  art is designed to be recognized at a glance, the way the app's own iPod-screen styling already
+  leans on imagery over text. Keep the subscriber count as a small corner badge (the same treatment
+  `unread` counts already get in the feed list) and move the subscribe button to appear on
+  hover/focus instead of sitting on every row permanently. Selecting a chip filters the grid in
+  place; the active chip gets the EQ-amber underline (`--accent2`) the level meter already uses,
+  rather than a new color. No new palette and no new typeface — reuse `--bg`/`--fg`/`--accent`/
+  `--accent2` and the existing Lucida Grande stack so Directory still looks like the rest of ipx, not
+  a bolted-on card kit: no border, shadow or radius beyond what the app already uses elsewhere. On
+  phone width the chip row scrolls horizontally in place rather than wrapping, so it never pushes
+  the grid down. Popular can stay a plain top-ten list for now, or get the same tile treatment later
+  — worth deciding separately rather than folding into this. (`web/index.html`)