- App.tsx doc comment: replace stale ChatPageHost reference with
'persistent chat host block rendered inline near the bottom of this
file' so readers can find the actual code.
- App.tsx persistent host: show a small spinner on /chat while plugin
manifests are loading instead of a blank content area. Direct
/chat deep-links used to paint empty for up to ~2s in the worst
case (plugin-registration safety timeout) because both the route
sink (null) and the persistent host (!pluginsLoading gate) render
nothing during that window. Non-chat routes stay empty as before.
- ChatPage.tsx: rename setter to match the 'raw' state — useState
now destructures as [mobilePanelOpenRaw, setMobilePanelOpenRaw],
and all four call sites (closeMobilePanel, matchMedia listener,
open-button onClick, plus destructure) updated accordingly. No
behavior change; matches the 'raw vs derived' convention the
original comment set up.