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/app.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useCallback, useEffect, useMemo } from 'react';
+import React, { useState, useCallback, useEffect, useMemo, useRef } from 'react';
 import { Box, useApp, useInput } from 'ink';
 import type { ParsedCommand } from '@mosaic/types';
 import { TopBar } from './components/top-bar.js';
@@ -73,6 +73,11 @@ export function TuiApp({
 
   const [sidebarSelectedIndex, setSidebarSelectedIndex] = useState(0);
 
+  // Controlled input state — held here so Ctrl+C can clear it
+  const [tuiInput, setTuiInput] = useState('');
+  // Ctrl+C double-press: first press with empty input shows hint; second exits
+  const ctrlCPendingExit = useRef(false);
+
   const handleLocalCommand = useCallback(
     (parsed: ParsedCommand) => {
       switch (parsed.command) {
@@ -97,6 +102,20 @@ export function TuiApp({
         case 'clear':
           socket.clearMessages();
           break;
+        case 'new':
+        case 'n':
+          void conversations
+            .createConversation()
+            .then((conv) => {
+              if (conv) {
+                socket.switchConversation(conv.id);
+                appMode.setMode('chat');
+              }
+            })
+            .catch(() => {
+              socket.addSystemMessage('Failed to create new conversation.');
+            });
+          break;
         case 'stop':
           // Currently no stop mechanism exposed — show feedback
           socket.addSystemMessage('Stop is not available for the current session.');
@@ -117,12 +136,12 @@ export function TuiApp({
 
   const handleGatewayCommand = useCallback(
     (parsed: ParsedCommand) => {
-      if (!socket.socketRef.current?.connected || !socket.conversationId) {
+      if (!socket.socketRef.current?.connected) {
         socket.addSystemMessage('Not connected to gateway. Command cannot be executed.');
         return;
       }
       socket.socketRef.current.emit('command:execute', {
-        conversationId: socket.conversationId,
+        conversationId: socket.conversationId ?? '',
         command: parsed.command,
         args: parsed.args ?? undefined,
       });
@@ -153,9 +172,21 @@ export function TuiApp({
   );
 
   useInput((ch, key) => {
+    // Ctrl+C: clear input → show hint → second empty press exits
     if (key.ctrl && ch === 'c') {
-      exit();
+      if (tuiInput) {
+        setTuiInput('');
+        ctrlCPendingExit.current = false;
+      } else if (ctrlCPendingExit.current) {
+        exit();
+      } else {
+        ctrlCPendingExit.current = true;
+        socket.addSystemMessage('Press Ctrl+C again to exit.');
+      }
+      return;
     }
+    // Any other key resets the pending-exit flag
+    ctrlCPendingExit.current = false;
     // Ctrl+L: toggle sidebar (refresh on open)
     if (key.ctrl && ch === 'l') {
       const willOpen = !appMode.sidebarOpen;
@@ -260,12 +291,15 @@ export function TuiApp({
       )}
 
       <InputBar
+        value={tuiInput}
+        onChange={setTuiInput}
         onSubmit={socket.sendMessage}
         onSystemMessage={socket.addSystemMessage}
         onLocalCommand={handleLocalCommand}
         onGatewayCommand={handleGatewayCommand}
         isStreaming={socket.isStreaming}
         connected={socket.connected}
+        focused={appMode.mode === 'chat'}
         placeholder={inputPlaceholder}
         allCommands={commandRegistry.getAll()}
       />