Update welcome screen quit shortcut#382
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…389) CI has hung on every run since the rename (#385): the `restart` and `tui_smoke` e2e test binaries never finish. Root cause: - #382 retired `q` as a quit key; the global quit chord is now C-x C-c (keymap.rs). key_latency.rs was updated; restart.rs + tui_smoke.rs were not — they still `send(b"q")`. - The e2e config disables the orchestrator, so the TUI sits on the empty- fleet welcome screen where only C-x C-c quits. `q` does nothing → the TUI never exits → `wait_exit` times out. - `Tui::wait_exit` moved the child into a detached wait-thread and, on timeout, returned without killing it. `Drop` can't help (`self.child` is already taken), so the process leaks, the PTY reader stays parked, and the tokio runtime can't shut down → `cargo test` hangs forever instead of failing. Fixes: 1. restart.rs + tui_smoke.rs (x2): send `\x18\x03` (C-x C-c) to quit. 2. Tui::wait_exit: grab a clone_killer() up front and kill the child on timeout, so a TUI that won't quit becomes a fast failure, never an infinite hang. Defense against this whole class recurring. Verified locally: restart (3) + tui_smoke (2) now pass and complete in seconds. This unblocks CI for main and all open PRs.
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Summary
qtoC-x C-cexit TUI, since the shortcut closes the TUI client rather than stopping the daemonTests
cargo test -p agentd-cli empty_tui_renders_welcome_and_modeline_hintcargo buildNo screenshot attached: this is a static shortcut-label change covered by the render assertion.