A YouTube search is `?yt=<term>` (+ `ytn` for a non-default count), so a reload, a link
or Back/Forward reopens it. It runs by itself only where it costs no quota: the free page
scrape, a search asked for in this document, or results still cached. An API search
reopened any other way shows its term and waits for "Search YouTube again".
Home's time budget is `hb`; the question's draw stays on the history entry.
An e2e spec opens every page's bookmark in a fresh browser context; CLAUDE.md and
docs/development.md name the module URL codec as the place for view state.
The player names what it plays in its own history entry (watch, wrel, wtab): a reload or a
bookmark reopens it on the page that hosts it, with that page's list as the queue, or alone
from the catalog (GET /api/videos/{id}/row); a page that hosts none gets the shell's. Back
lands on the page's address without it (useBackToClose's url; ui/Modal passes it on). The
Files viewer and player do the same (fview, fplay). The Plex and channel-manager views are
always written in full, as their fallback is remembered state.
The watched toggle weighed its own click at click time against marks stamped when the server answered, so the late answer of its previous click overruled the newer one; it now holds its word while any of its writes is on the way, is stamped at the answer, and drops a refused write. The hosts return the write. In a live search the feed's own answered writes stand down over the rows, which carry the marks, so a newer mark from the related list reaches a card the feed touched earlier.
A lit mode cycle got the hover layer, and a variant's hover colour outranked the pressed and lit colours: the state layer stands down on [data-lit] and those colours are important. The menus' Play from the beginning wears RotateCcw like the card's Restart, Reset wears Eraser and Redownload the retry arrow (DESIGN decision log). Tests pin the toggle's orders, the Watch later mark at its call sites, the live-search overrides, the hover exemptions and the menu glyphs.
- Every state and Watch-later write goes through features/video/videoWrites,
which marks the never-refetched lists (related lists, live searches) once
the server has it; a contract test holds it. The Notification Center's
undo, the feed's reset and the Watch-later toggles skipped it before.
- Confirmed marks are also kept apart (qk.videoMarks) and laid over the
related rows: a Show more page landing later rebuilt them from the pages
it read when it started, and dropped a mark made meanwhile.
- Restart on a related video starts at 0 (the session's stored position
won before), and on the one already playing it seeks.
- The watched toggle remembers each video's mark: Back showed the opened
video's launch-time state after a related one was marked.
- The help sheet leaves out the player's keys while a layer above it has
them waiting.
- After a refusal a retry cannot answer, neither Show more (related) nor
Load more (live search) is offered; a failed live-search page keeps the
results already read and says why under them.
- The related cap message counts requests, as the cap does.
A related video played in place is the player's item now: its title and its own watched /
playlist / download controls, its progress checkpointed and resumed, marked watched at its end —
and its end does not step the queue. Back returns to the opened video, where it was left.
The related list:
- its marks announce through the shared notice (the Notification Center finds them), join the
host's player session (the feed refetches on close), and stay per write, so an earlier answer no
longer undoes a later mark still on its way;
- every host's state write patches the cached related lists, which are never refetched;
- kept for the session (gcTime), a retry asks for the page that failed, a list read so far with
nothing unseen says so, a refusal a retry cannot answer offers none, and the followed mark names
itself on hover.
Turned off on the instance (a limit of 0), the tab, the drawer button and the live-search buttons
are left out.
Keys: the player's keys and its focus reclaim defer to a layer above it (the drawer); going wide
moves the drawer's list into the panel's tab; `j` goes on from the slot of a row removed inside the
top layer; the help sheet lists the list keys over a layer that holds a list.
`local/layers` (eslint.config.js) resolves every import to its file and refuses one that goes up
(lib/ → components/ui/ → features/ → modules/ → shell/) or that reaches into another module's own
files. A module's index.ts is its public face: the stores, mounted at the root and read app-wide,
which features/ may read too; a page is still opened lazily by import(). Its contract test probes
every edge, and three mutants of the rule (off, no face check, a door for everyone) each turn it red.
Six modules got that face; the shared channel UI (about, tags, tag manager) moved to
features/channel, the filter chips and the saved-views context to features/filters, and the prefs
store's controller type moved next to the store instead of importing it from its own page. The
header's per-module controls and the eagerly loaded rails keep eight inline suppressions, each
naming why: they go when the header gets slots and every rail loads lazily.
`chunkGuard` fails the production build when a lazily imported module lands in a boot chunk (the
entry, the shell, what they import) — e.g. a page re-exported from an index.ts, which makes its
import() a silent no-op. Proved on a build with that mutant; today's build has none.
A pure move (git mv, history kept): 333 files leave components/, which now holds only the platform
layer (ui/) and the legal pages. The shell is the frame (App, header, nav rail, palette, boot); each
page lives in modules/<page>/ with its rail, store and tests; what several pages share sits in
features/<name>/; the shared-link page is watch/. Domain-free helpers went straight to ui/
(ViewSwitcher, FilterRail, the confirm dialog, the language switcher, the copy rows).
Every relative specifier was rewritten (imports, dynamic imports, vi.mock, new URL), and the
contract tests that scan sources now scan the whole app source, not only components/ — each glob
was counted before and after so none went green over fewer files. The locale-format rule matched
`/src/components/` only, so the move would have taken ~300 files out from under its i18n-singleton
check; it now covers every folder that holds components, with a test per folder.
peter