fix(cli): wire command:result + system:reload socket events in TUI (#187)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/cli/src/tui/hooks/use-socket.ts

@@ -12,6 +12,8 @@ import type {
   SessionInfoPayload,
   ErrorPayload,
   CommandManifestPayload,
+  SlashCommandResultPayload,
+  SystemReloadPayload,
 } from '@mosaic/types';
 import { commandRegistry } from '../commands/index.js';
 
@@ -230,6 +232,27 @@ export function useSocket(opts: UseSocketOptions): UseSocketReturn {
       commandRegistry.updateManifest(data.manifest);
     });
 
+    socket.on('command:result', (data: SlashCommandResultPayload) => {
+      const prefix = data.success ? '' : 'Error: ';
+      const text = data.message ?? (data.success ? 'Done.' : 'Command failed.');
+      setMessages((msgs) => [
+        ...msgs,
+        { role: 'system', content: `${prefix}${text}`, timestamp: new Date() },
+      ]);
+    });
+
+    socket.on('system:reload', (data: SystemReloadPayload) => {
+      commandRegistry.updateManifest({
+        commands: data.commands,
+        skills: data.skills,
+        version: Date.now(),
+      });
+      setMessages((msgs) => [
+        ...msgs,
+        { role: 'system', content: data.message, timestamp: new Date() },
+      ]);
+    });
+
     return () => {
       socket.disconnect();
     };