fix(web): keep one composer bar DOM across the no-workspace transition
The composer.bar slot moves from session to session-maybe scope: with no
current session the entry still mounts, the machine faces (keyboard, stop,
command) arrive undefined, and the bar renders its normal DOM inert via the
disabled owner prop. DisabledInputBar and its parallel tree are gone, so the
textarea node survives the cold-start workspace pick instead of flashing
through a remount. A blank session whose workspace was deleted takes the
same inert path through owner props.
test(web): add the composer DOM-continuity acceptance probe
Drives a real dsh web server with headless chromium through the cold-start
-> pick-workspace -> type flow and asserts the composer textarea is the
same DOM node throughout (a marker property must survive). Rerun
prerequisites are in the header comment.
docs(web): session-maybe identity is adoption, not hold-forever
fix(web): session-maybe entries adopt the first session, then remount like strict entries
A session-maybe entry used to keep one React instance across every
transition, so component-local state leaked between sessions once the
composer bar moved to that scope (PermissionSelect's optimistic pick, the
IME composition guard). Identity is now adoption: an incarnation born
session-less holds through the arrival of the first session (the blank
shell's DOM survives the workspace pick), and afterwards behaves exactly
like a strict session entry — a switch or a drop to no-session remounts,
clearing local state by construction. The child key is an incarnation
counter kept in the stable outlet wrapper via render-phase setState.
chore: knip knows the root acceptance probe's playwright dependency
scripts/hero-composer-dom-continuity.mjs resolves playwright through
apps/web's devDependency tree (createRequire), which knip cannot follow;
ignore it at the root workspace.