Two fixes for desktop app slash command handling:
1. Slash commands submitted while the agent is busy now execute
immediately instead of being queued. Previously submitDraft()
unconditionally queued any draft when busy, but slash commands
are client-side operations or self-contained gateway RPCs that
should run regardless of busy state (matching TUI behavior).
executeSlashCommand already has its own per-command busy guard
for commands that genuinely need an idle session.
2. Slash command trigger items no longer leak the "|index" suffix
from their item.id into the serialized chip text. The
toItem callback now sets rawText in metadata so
hermesDirectiveFormatter.serialize takes the direct-insertion
path instead of the legacy @type:id fallback. This also means
slash commands enter the composer as plain text (not chips),
matching selectSkinSlashCommand and TUI behavior.
1eeb7da2e6