fix(daemon): enable launchd service before bootstrap

When a launchd service is uninstalled via bootout, macOS marks it as
disabled in /var/db/com.apple.xpc.launchd/disabled.*.plist. This persists
across reboots and plist recreation. Future bootstrap calls fail with
error 5 (I/O error) because the service is still marked disabled.

Fix: Call 'launchctl enable' before 'launchctl bootstrap' to clear the
disabled state, matching the fix already applied to the macOS Swift app
in GatewayLaunchAgentManager.swift.

Related: #306

src/daemon/launchd.ts

@@ -410,6 +410,7 @@ export async function installLaunchAgent({
 
   await execLaunchctl(["bootout", domain, plistPath]);
   await execLaunchctl(["unload", plistPath]);
+  await execLaunchctl(["enable", `${domain}/${label}`]);
   const boot = await execLaunchctl(["bootstrap", domain, plistPath]);
   if (boot.code !== 0) {
     throw new Error(`launchctl bootstrap failed: ${boot.stderr || boot.stdout}`.trim());