The Channels-manager content state now round-trips through the address bar,
so a manager view is bookmarkable/shareable — the S4 pattern applied to the
last content page the audit flagged.
- New lib/channelsUrlState.ts (channelsParamUpdates / channelsParamsToState /
hasChannelsParams) under NAMESPACED keys ctab/csort/cf — channels-unique
like ?v=/?pl/pscope, so no other provider reads or clears them and the
feed's URL-stripping can't delete them. The mixed scalar/array FilterMap
(sync/priority scalars + tags multi) rides in `cf` as a JSON blob so both
shapes round-trip exactly. Only non-default values emit.
- ChannelsProvider mirrors {view, sort, filters} via useUrlMirror, page-gated
on channels (off-page the keys clear; localStorage still holds the state and
it re-mirrors on return). A shared link wins over stored state: readChannels
UrlSeed captured once, applied before paint through the slice setters (so the
account-pin re-hydrate sees them dirty and won't reload storage over the
shared view), then persisted to the account once pinned so it survives a
later plain reload — mirrors PlexProvider's seed/rehydrate. The name search
stays ephemeral (out of the shared contract).
- NavigationProvider's page-switch nulls ctab/csort/cf alongside the plex keys
so switching modules resets to the manager root.
Tests: channelsUrlState.dom.test.ts (9 round-trip) + ChannelsProvider.dom
seed/mirror (2); the existing tab-history test's beforeEach now resets the
query string too (the mirror writes it). FE vitest 503→514. FE-only.
peter
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