Refactor cockpit to use claude-code-tools-local package

Architecture improvements:
- Import TmuxCLIController from installed claude-code-tools-local
- DockerTmuxAdapter extends TmuxCLIController for Docker execution
- Override _run_tmux_command() to prepend 'docker exec' to commands
- Backward compatibility alias: DockerTmuxController = DockerTmuxAdapter

This enables:
- Pulling upstream improvements from claude-code-tools
- Maintaining Docker-specific functionality
- Clean inheritance-based architecture

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

lib/cockpit.py

@@ -9,7 +9,10 @@ Key features:
 - tmux for human attachment when needed
 - Multi-turn conversation support
 
-Uses claude-code-tools TmuxCLIController pattern for robust session management.
+Architecture:
+    Imports TmuxCLIController from claude-code-tools-local package and extends
+    it with DockerTmuxAdapter for Docker-containerized tmux sessions.
+    This enables importing upstream improvements while adding Docker support.
 
 Usage:
     luzia cockpit start <project>       Start cockpit container
@@ -31,40 +34,57 @@ import re
 from pathlib import Path
 from typing import Dict, Optional, Tuple, List
 
+# Import TmuxCLIController from installed claude-code-tools-local package
+from claude_code_tools.tmux_cli_controller import TmuxCLIController
 
-class DockerTmuxController:
+
+class DockerTmuxAdapter(TmuxCLIController):
     """
-    Tmux controller that executes commands inside a Docker container.
+    Docker adapter for TmuxCLIController.
 
-    Based on claude-code-tools TmuxCLIController pattern, adapted for
+    Extends TmuxCLIController to execute tmux commands inside a Docker container
-    Docker containerized tmux sessions.
+    rather than on the host system. This enables:
+    - Inheriting all TmuxCLIController methods automatically
+    - Pulling upstream improvements from claude-code-tools
+    - Adding Docker-specific functionality
+
+    The key override is _run_tmux_command() which prepends 'docker exec' to all
+    tmux commands.
     """
 
     def __init__(self, container_name: str, tmux_session: str = "agent", tmux_window: str = "main"):
         """
-        Initialize controller for a Docker container's tmux session.
+        Initialize adapter for a Docker container's tmux session.
 
         Args:
             container_name: Docker container name
             tmux_session: tmux session name inside container (default: agent)
             tmux_window: tmux window name (default: main)
         """
+        super().__init__(session_name=tmux_session, window_name=tmux_window)
         self.container_name = container_name
         self.tmux_session = tmux_session
         self.tmux_window = tmux_window
         self.target = f"{tmux_session}:{tmux_window}"
 
-    def _run_tmux(self, args: List[str]) -> Tuple[str, int]:
+    def _run_tmux_command(self, command: List[str]) -> Tuple[str, int]:
         """
-        Run a tmux command inside the Docker container.
+        Override: Run tmux command inside the Docker container.
+
+        This is the key override that makes all inherited TmuxCLIController
+        methods work inside Docker. Instead of running 'tmux <cmd>', we run
+        'docker exec <container> tmux <cmd>'.
 
         Args:
-            args: tmux command arguments (without 'tmux' prefix)
+            command: List of command components (without 'tmux' prefix)
 
         Returns:
-            Tuple of (stdout, return_code)
+            Tuple of (output, exit_code)
         """
-        cmd = ["docker", "exec", self.container_name, "tmux"] + args
+        if not self.is_container_running():
+            return "", 1
+
+        cmd = ["docker", "exec", self.container_name, "tmux"] + command
         result = subprocess.run(cmd, capture_output=True, text=True)
         return result.stdout.strip(), result.returncode
 
@@ -92,14 +112,14 @@ class DockerTmuxController:
             return False
 
         # Send text first
-        _, code = self._run_tmux(["send-keys", "-t", self.target, text])
+        _, code = self._run_tmux_command(["send-keys", "-t", self.target, text])
         if code != 0:
             return False
 
         if enter:
             if delay_enter > 0:
                 time.sleep(delay_enter)
-            self._run_tmux(["send-keys", "-t", self.target, "Enter"])
+            self._run_tmux_command(["send-keys", "-t", self.target, "Enter"])
 
         return True
 
@@ -116,7 +136,7 @@ class DockerTmuxController:
         if not self.is_container_running():
             return ""
 
-        output, code = self._run_tmux([
+        output, code = self._run_tmux_command([
             "capture-pane", "-t", self.target, "-p", "-S", f"-{lines}"
         ])
         return output if code == 0 else ""
@@ -265,16 +285,20 @@ class DockerTmuxController:
         """Send Ctrl+C to interrupt running command."""
         if not self.is_container_running():
             return False
-        _, code = self._run_tmux(["send-keys", "-t", self.target, "C-c"])
+        _, code = self._run_tmux_command(["send-keys", "-t", self.target, "C-c"])
         return code == 0
 
     def clear_pane(self) -> bool:
         """Clear the pane screen."""
         if not self.is_container_running():
             return False
-        _, code = self._run_tmux(["send-keys", "-t", self.target, "C-l"])
+        _, code = self._run_tmux_command(["send-keys", "-t", self.target, "C-l"])
         return code == 0
 
+
+# Backward compatibility alias
+DockerTmuxController = DockerTmuxAdapter
+
 # Constants
 COCKPIT_IMAGE = "luzia-cockpit:latest"
 COCKPIT_PREFIX = "luzia-cockpit-"