* Fix --help flag executing commands instead of showing help (#650)
The --help check fell through to command dispatch when subcommandUsage
returned nil for a command. Now --help always returns before dispatch,
printing a generic fallback when no specific help text exists.
Also adds missing subcommandUsage entries for: new-window, list-panes,
list-pane-surfaces, surface-health, trigger-flash, list-panels,
focus-panel, set-app-focus, ping, capabilities, identify, list-windows,
current-window, refresh-surfaces, current-workspace, list-notifications,
clear-notifications.
Closes#650
* Document all flags and options in CLI --help output
Every subcommand's help text now shows all accepted flags, options,
environment variable fallbacks, and positional arguments matching the
actual dispatch code. Also adds help entries for commands that were
returning the generic fallback (list-workspaces, list-panes,
list-pane-surfaces, surface-health, trigger-flash, list-panels,
focus-panel, set-app-focus, etc.)
* Show 'Unknown command' for invalid commands, add legacy alias help
Unknown commands now show "Unknown command 'X'. Run 'cmux help' to see
available commands." instead of the misleading "No detailed help
available." Also adds help entries for legacy browser aliases
(open-browser, navigate, etc.) pointing to 'cmux browser --help'.
* Audit all 89 CLI commands for complete help coverage
- Add missing `help` subcommandUsage entry
- Expand id|ref → id|ref|index for move-workspace-to-window,
close-workspace, select-workspace, rename-workspace
- Document CMUX_WORKSPACE_ID/CMUX_TAB_ID/CMUX_SURFACE_ID env var
defaults in tab-action, rename-workspace
- Expand browser help: get (--selector, --attr, --property),
find (--name, --exact, --index), network route (--abort, --body),
open/open-split/new env var defaults
- Remove duplicate rename-window help case (now handled by
rename-workspace combined case)
- Upgrade regression test to auto-extract dispatch+subcommandUsage
switches and flag any commands missing help entries
181574586e