Add daemon restart feature from settings (#18)

* Add daemon restart feature from settings

This adds the ability to restart a connected daemon from the settings page.
The feature includes:

- Backend: RestartDaemon command added to DaemonCommand enum
- Backend: New POST /api/v1/mesh/daemons/{id}/restart endpoint
- Backend: Daemon gracefully shuts down tasks and exits with code 42
  (can be used by process managers like systemd to detect restart requests)
- Frontend: restartDaemon() API function
- Frontend: Restart button in Connected Daemons section of settings
- Frontend: Confirmation dialog before restart to prevent accidental restarts

When a daemon receives the restart command, it:
1. Gracefully shuts down all running Claude processes (5s timeout)
2. Exits with code 42 to signal restart requested
3. The daemon can be restarted by a process manager or manually

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

1 files changed, 3 insertions, 0 deletions

diff --git a/makima/src/server/state.rs b/makima/src/server/state.rs
index 38aadf5..28d65d0 100644
--- a/makima/src/server/state.rs
+++ b/makima/src/server/state.rs
@@ -435,6 +435,9 @@ pub enum DaemonCommand {
 
     /// Error response
     Error { code: String, message: String },
+
+    /// Restart the daemon process
+    RestartDaemon,
 }
 
 /// Active daemon connection info stored in state.