fix(canvas): 解决画布节点拖拽操作被控件拦截问题

- 在 CanvasConfigNodePanel 组件中为 Segmented 控件添加事件阻止传播
- 为输入框和按钮组件添加 onMouseDown 事件阻止传播
- 为 ModelPicker 和 CanvasSizePicker 的下拉菜单添加事件阻止传播
- 更新 API 基础 URL 默认端口从 8080 改为 3000
- 更新开发服务器端口配置为 3001
- 在 CHANGELOG 中更新修复说明

web/src/components/model-picker.tsx

@@ -23,6 +23,7 @@ export function ModelPicker({ config, value, onChange, className, fullWidth = fa
       showSearch
       className={`canvas-control-select ${className || ""}`}
       popupMatchSelectWidth={false}
+      popupRender={(menu) => <div onMouseDown={(event) => event.stopPropagation()} onPointerDown={(event) => event.stopPropagation()}>{menu}</div>}
       style={{ width, maxWidth: "100%", minWidth: 0, flexShrink: 1 }}
       value={value || undefined}
       placeholder={placeholder}
@@ -30,6 +31,7 @@ export function ModelPicker({ config, value, onChange, className, fullWidth = fa
       notFoundContent="请先到配置里拉取模型列表"
       onChange={onChange}
       onMouseDown={(event) => event.stopPropagation()}
+      onPointerDown={(event) => event.stopPropagation()}
       onClick={() => {
         if (!options.length) onMissingConfig?.();
       }}