feat: Add toggle command to quickly enable/disable automation for active pane

Implements `autoclaude start toggle` to toggle monitoring on/off for the currently
active tmux pane, making it easy to quickly switch automation on and off without
specifying session and window parameters.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/autoclaude/cli.py

@@ -408,6 +408,37 @@ class ClaudeCLI:
         except Exception as e:
             self.print_error(f"Failed to view logs: {e}")
 
+    def get_active_pane(self) -> tuple:
+        try:
+            result = subprocess.run(
+                ['tmux', 'display-message', '-p', '#{session_name}:#{window_index}'],
+                capture_output=True, text=True, timeout=5
+            )
+            pane_id = result.stdout.strip()
+            if ':' in pane_id:
+                session, window = pane_id.split(':')
+                return session, int(window)
+        except Exception as e:
+            self.print_error(f"Failed to get active pane: {e}")
+        return None, None
+
+    def toggle_automation(self):
+        session, window = self.get_active_pane()
+        if session is None:
+            self.print_error("Could not determine active pane")
+            return
+
+        targets = self.load_targets()
+        pane_id = f"{session}:{window}"
+
+        if session in targets['targets'] and window in targets['targets'][session]:
+            self._remove_target(session, window)
+            self.print_success(f"Automation disabled for {pane_id}")
+        else:
+            self.start_orchestrator()
+            self._add_target(session, window)
+            self.print_success(f"Automation enabled for {pane_id}")
+
     def show_help(self):
         self.print_header("Autoclaude - Autonomous Claude Code Control System")
 
@@ -415,6 +446,7 @@ class ClaudeCLI:
 {Colors.BOLD}SERVICE COMMANDS:{Colors.ENDC}
   start [session] [window]  Start autonomous monitoring service
                             Optional: target specific panel (e.g., main 8)
+  start toggle              Toggle automation for the active pane
   stop [session] [window]   Stop monitoring service
                             Optional: stop monitoring specific panel (e.g., main 8)
   status                    Check service status
@@ -584,7 +616,9 @@ Run without arguments for interactive menu.
             cli.print_error("Invalid window number")
             sys.exit(1)
     elif command == 'start':
-        if len(args.args) >= 2:
+        if len(args.args) >= 1 and args.args[0] == 'toggle':
+            cli.toggle_automation()
+        elif len(args.args) >= 2:
             session = args.args[0]
             try:
                 window = int(args.args[1])