fix(session): Auto-accept Claude bypass permissions warning dialog

When Claude starts with --dangerously-skip-permissions, it shows a warning
dialog requiring Down+Enter to accept. This blocked automated polecat and
agent startup.

Added AcceptBypassPermissionsWarning() to tmux package that:
- Checks if the warning dialog is present by capturing pane content
- Only sends Down+Enter if "Bypass Permissions mode" text is found
- Avoids interfering with sessions that don't show the warning

Updated all Claude startup locations:
- session/manager.go (polecat sessions)
- cmd/up.go (mayor, witness, crew, polecat cold starts)
- daemon/daemon.go (crashed polecat restarts)
- daemon/lifecycle.go (role session starts)

internal/daemon/lifecycle.go

@@ -364,6 +364,13 @@ func (d *Daemon) restartSession(sessionName, identity string) error {
 		return fmt.Errorf("sending startup command: %w", err)
 	}
 
+	// Wait for Claude to start, then accept bypass permissions warning if it appears.
+	// This ensures automated role starts aren't blocked by the warning dialog.
+	if err := d.tmux.WaitForCommand(sessionName, constants.SupportedShells, constants.ClaudeStartTimeout); err != nil {
+		// Non-fatal - Claude might still start
+	}
+	_ = d.tmux.AcceptBypassPermissionsWarning(sessionName)
+
 	// Note: gt prime is handled by Claude's SessionStart hook, not injected here.
 	// Injecting it via SendKeysDelayed causes rogue text to appear in the terminal.