Add thread rename support

internal/codexapp/client.go

@@ -224,6 +224,17 @@ func (c *Client) ArchiveThread(ctx context.Context, threadID string) error {
 	return c.call(ctx, "thread/archive", map[string]any{"threadId": threadID}, &ignored)
 }
 
+func (c *Client) SetThreadName(ctx context.Context, threadID, name string) error {
+	if err := c.EnsureConnected(ctx); err != nil {
+		return err
+	}
+	var ignored json.RawMessage
+	return c.call(ctx, "thread/setName", map[string]any{
+		"threadId": threadID,
+		"name":     name,
+	}, &ignored)
+}
+
 func (c *Client) StartTurn(ctx context.Context, threadID, cwd, model, reasoningEffort, sandbox string, input []InputItem) (Turn, error) {
 	if err := c.EnsureConnected(ctx); err != nil {
 		return Turn{}, err