fix: remove fallback to bare openclaw.mjs after dashboard exits

The `|| openclaw.mjs` fallback ran when dashboard exited with non-zero
(e.g. Ctrl+C), triggering "Control UI assets not found" error message.

uclaw-scripts/启动菜单.command

@@ -201,7 +201,7 @@ do_run() {
             echo "  接下来可以选 [17] 打开网页控制台。"
         fi
     else
-        "$NODE_BIN" openclaw.mjs dashboard || "$NODE_BIN" openclaw.mjs
+        "$NODE_BIN" openclaw.mjs dashboard
     fi
 }
 
@@ -215,7 +215,7 @@ do_dashboard() {
         echo -e "  ${YELLOW}你还没有完成 U 盘便携配置。请先选 [4] 从 U 盘运行。${NC}"
         return
     fi
-    "$NODE_BIN" openclaw.mjs dashboard || "$NODE_BIN" openclaw.mjs
+    "$NODE_BIN" openclaw.mjs dashboard
 }
 
 # [5] 配置国产模型

uclaw-scripts/运行.command

@@ -132,7 +132,7 @@ if [ ! -f "$PORTABLE_CONFIG_PATH" ]; then
         echo "  已跳过首次配置。"
     fi
 else
-    "$NODE_BIN" openclaw.mjs dashboard || "$NODE_BIN" openclaw.mjs
+    "$NODE_BIN" openclaw.mjs dashboard
 fi
 
 echo ""