- DataTable: keep `pagerNode` NULLABLE. Extracting Pager made it an always-truthy
element, so the `controls` / `bottomControls` guards always fired and a table with
nothing to page rendered empty `my-3` bands (plus an empty in-band PageToolbar).
- ChannelsProvider: `setView` bails when the tab is unchanged (re-selecting the
active tab, or goToFullHistory forcing "subscribed", stacked dead Back entries),
and pushes a FRESH state like setPage does instead of spreading `_chan`/`_yt`
markers into the tab entry.
- Lift the layout into its own narrow context (`useChannelLayout`): App read the
whole ChannelsState for the fade, so every keystroke in the manager's search box
re-rendered the app root.
- Reset the card page when the row set or sort changes (both tabs) — the clamp only
hid a stale page, which came back when the filter was cleared.
- Sort + slice the card rows only in cards mode; table mode was copy-sorting ~300
rows per render for a result nothing read.
- Validate persisted `cardSize` / `sort` (`parseCardSize`, `parseSortState`), matching
the clamp-on-read convention the module's other persisted values already follow;
a corrupt size made the page count NaN and emptied the grid.
- Pager: page-size changes scroll to the top too (they re-slice from a new first item).
- ColumnSortControl: a stored sort naming a column this table no longer offers is
treated as no sort, instead of showing a direction arrow for a sort that isn't applied.
- Drop the stale "rows" layout comments (that variant was retired this sprint).
UAT round 4:
- Discovery table: move Actions to the first column, mirroring the Subscriptions
table (where it sits right after Prio) so both tabs' actions line up.
- The manager's tabs now ride in history.state (`_chTab`), the same way the channel
page (`_chan`) and the live search (`_yt`) already do — so Back steps back through
the tabs you visited before it leaves the module. Arriving from elsewhere stamps
the entry setPage pushed (one navigation never costs two Back presses).
- Turning a page now scrolls the list back to its top (both the tables and the card
grid, since they share Pager) — landing mid-list in an unseen page is disorienting.
Cards have no column headers to sort by, so lift the sort out of DataTable into
one shared state that BOTH views drive and reflect. New lib/columnSort.ts holds
the comparator + click-cycle (one source of truth); DataTable gains an optional
controlled sort (sort + onSortChange) and falls back to its internal persistKey
sort when they're omitted, so every other table is untouched. The subscribed
sort lives in ChannelsProvider, discovery keeps its own (its columns differ);
a new ColumnSortControl dropdown (options derived from the columns' sortable
metadata, feed-style + asc/desc toggle) drives it in cards mode. Per-account,
persisted, per-tab.
A generic ViewSwitcher (reused from the feed) drives a per-account layout
shared by the Subscriptions + Discovery tabs. `table` keeps the DataTable
(numbered pager); `cards` and `rows` render a virtualized grid over the same
client-side list via the new ChannelLayoutGrid, which composes cells straight
from each table's Column<T> render closures (cardPrimary/hideInCard/cardLabel),
so both tabs — with their different columns — get the views for free. Status
chips surface in the fixed band when the table's own controls row is gone.
Lift the Channels manager's shared local state (name filter, status chip,
active tab, column-reset token, focus-a-channel intent) out of App into a
split-context ChannelsProvider, nested inside NavigationProvider so its
focusChannel/goToFullHistory actions can drive navigation. The Channels page,
the header search box + sync chip, the feed filter sidebar, and the
notifications inbox all read it via useChannels()/useChannelsActions() instead
of props drilled through App. Channels also internalises onViewChannel /
onFilterByTag / onFocusChannel (nav + feed-filters straight from providers) and
takes only { me, onOpenWizard } now. App loses five useStates, the focusChannel
helper, the focus-clear effect, and a large block of per-page prop plumbing.
(Platform S6b.2)
peter