fix(cli): wire initialModel/initialProvider through useSocket, add error handling

- Pass initialModel/initialProvider from CLI flags into useSocket hook
- Include provider/modelId in socket message emit (restores PR #144 functionality)
- Add provider/modelId optional fields to ChatMessagePayload type
- Add .catch() to floating promises in createConversation/deleteConversation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/cli/src/tui/app.tsx

@@ -25,8 +25,8 @@ export function TuiApp({
   gatewayUrl,
   conversationId,
   sessionCookie,
-  initialModel: _initialModel,
+  initialModel,
-  initialProvider: _initialProvider,
+  initialProvider,
 }: TuiAppProps) {
   const { exit } = useApp();
   const gitInfo = useGitInfo();
@@ -36,6 +36,8 @@ export function TuiApp({
     gatewayUrl,
     sessionCookie,
     initialConversationId: conversationId,
+    initialModel,
+    initialProvider,
   });
 
   const conversations = useConversations({ gatewayUrl, sessionCookie });
@@ -72,11 +74,14 @@ export function TuiApp({
 
   const handleDeleteConversation = useCallback(
     (id: string) => {
-      void conversations.deleteConversation(id).then((ok) => {
+      void conversations
+        .deleteConversation(id)
+        .then((ok) => {
           if (ok && id === socket.conversationId) {
             socket.clearMessages();
           }
-      });
+        })
+        .catch(() => {});
     },
     [conversations, socket],
   );
@@ -95,12 +100,15 @@ export function TuiApp({
     }
     // Ctrl+N: create new conversation and switch to it
     if (key.ctrl && ch === 'n') {
-      void conversations.createConversation().then((conv) => {
+      void conversations
+        .createConversation()
+        .then((conv) => {
           if (conv) {
             socket.switchConversation(conv.id);
             appMode.setMode('chat');
           }
-      });
+        })
+        .catch(() => {});
     }
     // Ctrl+K: toggle search mode
     if (key.ctrl && ch === 'k') {

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

@@ -41,6 +41,8 @@ export interface UseSocketOptions {
   gatewayUrl: string;
   sessionCookie?: string;
   initialConversationId?: string;
+  initialModel?: string;
+  initialProvider?: string;
 }
 
 export interface UseSocketReturn {
@@ -78,7 +80,7 @@ const EMPTY_USAGE: TokenUsage = {
 };
 
 export function useSocket(opts: UseSocketOptions): UseSocketReturn {
-  const { gatewayUrl, sessionCookie, initialConversationId } = opts;
+  const { gatewayUrl, sessionCookie, initialConversationId, initialModel, initialProvider } = opts;
 
   const [connected, setConnected] = useState(false);
   const [connecting, setConnecting] = useState(true);
@@ -227,6 +229,8 @@ export function useSocket(opts: UseSocketOptions): UseSocketReturn {
       socketRef.current.emit('message', {
         conversationId,
         content,
+        ...(initialProvider ? { provider: initialProvider } : {}),
+        ...(initialModel ? { modelId: initialModel } : {}),
       });
     },
     [conversationId, isStreaming],

packages/types/src/chat/events.ts

@@ -62,6 +62,8 @@ export interface ErrorPayload {
 export interface ChatMessagePayload {
   conversationId?: string;
   content: string;
+  provider?: string;
+  modelId?: string;
 }
 
 /** Session info pushed when session is created or model changes */