Detach a session tab into its own browser window and back.
Detach/undock:
- GET /session/:id serves the SPA in "solo mode", reusing the existing
client (terminal, local-echo overlay, reconnect) so no terminal code is
duplicated. One PTY already fans out to N SSE/WS clients, so a detached
window is just another live client — no server fan-out work was needed.
- A pop-out icon per tab; detached tabs show a badge and focus the popup on
click; closing the popup re-docks. Cross-window state via BroadcastChannel
plus a WindowProxy poll, and survives a dashboard reload (roll-call).
app.detachSession(id) is a single idempotent entry point (future gesture
hook). <base href="/"> so relative assets resolve under /session/:id.
Beta-branch isolation (so it can run alongside a prod Codeman):
- Default port 3000 -> 5000.
- New src/config/instance.ts derives the data dir and tmux socket from
CODEMAN_INSTANCE (default "beta"): ~/.codeman-beta + tmux -L codeman-beta.
Every ~/.codeman path now goes through dataPath()/getDataDir() (state,
mux-sessions, settings, push keys, lifecycle log, screenshots, certs,
linked-cases, subagent window state). Overridable via CODEMAN_INSTANCE /
CODEMAN_DATA_DIR / CODEMAN_TMUX_SOCKET. Prevents a second instance from
discovering and attaching PTYs to the first instance's live tmux sessions.
Verified: tsc / eslint / prettier / lockfile clean; Playwright E2E (27 checks)
for detach/solo/redock; default isolation confirmed to see zero real sessions.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
