🎨 refactor(model-pricing/header): unify header design, extract SearchActions, and improve skeleton

- Extract SearchActions.jsx and replace inline renderSearchActions in PricingVendorIntro.jsx for reuse
- Refactor PricingVendorIntro.jsx:
  - Introduce renderHeaderCard(), tagStyle, getCoverStyle(), and MAX_VISIBLE_AVATARS constant
  - Standardize vendor header cover (gradient + background image) and tag contrast
  - Use border instead of ring for vendor badges; unify visuals and remove Tailwind ring dependency
  - Rotate vendors every 2s only when filterVendor === 'all' and vendor count > 3
  - Remove unused imports; keep prop surface minimal; pass setShowFilterModal downward only
- Refactor PricingVendorIntroSkeleton.jsx:
  - Add getCoverStyle() and rect() helpers; rebuild skeleton to match final UI
  - Replace invalid Skeleton.Input usage; add missing keys; unify colors/borders/radius
- Update PricingTopSection.jsx:
  - Manage filter modal locally; drop redundant prop passing
- Update PricingVendorIntroWithSkeleton.jsx:
  - Align prop interface; forward only required props and keep useMinimumLoadingTime
- Add: web/src/components/table/model-pricing/layout/header/SearchActions.jsx
- Lint: all files pass; no dark:* classes present in this scope

Files touched:
- web/src/components/table/model-pricing/layout/header/PricingTopSection.jsx
- web/src/components/table/model-pricing/layout/header/PricingVendorIntro.jsx
- web/src/components/table/model-pricing/layout/header/PricingVendorIntroWithSkeleton.jsx
- web/src/components/table/model-pricing/layout/header/PricingVendorIntroSkeleton.jsx
- web/src/components/table/model-pricing/layout/header/SearchActions.jsx (new)

web/src/components/table/model-pricing/layout/header/SearchActions.jsx

@@ -0,0 +1,79 @@
+/*
+Copyright (C) 2025 QuantumNous
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+For commercial licensing, please contact support@quantumnous.com
+*/
+
+import React from 'react';
+import { Input, Button } from '@douyinfe/semi-ui';
+import { IconSearch, IconCopy, IconFilter } from '@douyinfe/semi-icons';
+
+const SearchActions = ({
+  selectedRowKeys = [],
+  copyText,
+  handleChange,
+  handleCompositionStart,
+  handleCompositionEnd,
+  isMobile = false,
+  searchValue = '',
+  setShowFilterModal,
+  t
+}) => {
+  return (
+    <div className="flex items-center gap-4 w-full">
+      {/* 搜索框 */}
+      <div className="flex-1">
+        <Input
+          prefix={<IconSearch />}
+          placeholder={t('模糊搜索模型名称')}
+          value={searchValue}
+          onCompositionStart={handleCompositionStart}
+          onCompositionEnd={handleCompositionEnd}
+          onChange={handleChange}
+          showClear
+        />
+      </div>
+
+      {/* 操作按钮 */}
+      <Button
+        theme='outline'
+        type='primary'
+        icon={<IconCopy />}
+        onClick={() => copyText?.(selectedRowKeys)}
+        disabled={selectedRowKeys.length === 0}
+        className="!bg-blue-500 hover:!bg-blue-600 text-white"
+      >
+        {t('复制')}
+      </Button>
+
+      {/* 移动端筛选按钮 */}
+      {isMobile && (
+        <Button
+          theme="outline"
+          type='tertiary'
+          icon={<IconFilter />}
+          onClick={() => setShowFilterModal?.(true)}
+        >
+          {t('筛选')}
+        </Button>
+      )}
+    </div>
+  );
+};
+
+export default SearchActions;
+
+