resolve-hitl-panel marks the most recent panel message with
:panel-resolved (:approved or :denied) and writes back to
the message vector. View-chat renders resolved panels with
dimmed color instead of :hitl theme color.
/approve and /deny handlers call resolve-hitl-panel after
sending structured events to the daemon. Confirmation messages
now use checkmark/crossmark prefixes.
- channel-tui-main: resolve-hitl-panel fn, wired into handlers
- channel-tui-view: is-resolved check for panel dimming
- +2 tests: panel-after-approve, panel-after-deny
- TUI Main: 88/89 (1 pre-existing flake)
Amr Gharbeia
93a38d5308