The slash prefix in prompts now routes directly to the agent's ctl
file. No special-cased commands in the agent — the ctl handler is the
single command surface:
/stop, /compact, /clear, /model X, /inject X, /agent X, /cwd X
New ctl commands:
inject <text> — overwrites any pending inject (replaces /i and /irw)
agent <name> — switch agent profile (moved from commands.go)
Agent methods added: Compact(), Clear(), SwitchProfile() — called by
the ctl handler, testable independently.
HandleCommand is now a thin trampoline: strip /, run 'o ctl <rest>'.
commands.go reduced from 155 to 50 lines.
REPL: / → o ctl, !q/!quit → exit TUI.
a4e5f7c9c5