🏗️ refactor: Replace model categories with vendor-based filtering and optimize data structure

- **Backend Changes:**
  - Refactor pricing API to return separate vendors array with ID-based model references
  - Remove redundant vendor_name/vendor_icon fields from pricing records, use vendor_id only
  - Add vendor_description to pricing response for frontend display
  - Maintain 1-minute cache protection for pricing endpoint security

- **Frontend Data Flow:**
  - Update useModelPricingData hook to build vendorsMap from API response
  - Enhance model records with vendor info during data processing
  - Pass vendorsMap through component hierarchy for consistent vendor data access

- **UI Component Replacements:**
  - Replace PricingCategories with PricingVendors component for vendor-based filtering
  - Replace PricingCategoryIntro with PricingVendorIntro in header section
  - Remove all model category related components and logic

- **Header Improvements:**
  - Implement vendor intro with real backend data (name, icon, description)
  - Add text collapsible feature (2-line limit with expand/collapse functionality)
  - Support carousel animation for "All Vendors" view with vendor icon rotation

- **Model Detail Modal Enhancements:**
  - Update ModelHeader to use real vendor icons via getLobeHubIcon()
  - Move tags from header to ModelBasicInfo content area to avoid SideSheet title width constraints
  - Display only custom tags from backend with stringToColor() for consistent styling
  - Use Space component with wrap property for proper tag layout

- **Table View Optimizations:**
  - Integrate RenderUtils for description and tags columns
  - Implement renderLimitedItems for tags (max 3 visible, +x popover for overflow)
  - Use renderDescription for text truncation with tooltip support

- **Filter Logic Updates:**
  - Vendor filter shows disabled options instead of hiding when no models match
  - Include "Unknown Vendor" category for models without vendor information
  - Remove all hardcoded vendor descriptions, use real backend data

- **Code Quality:**
  - Fix import paths after component relocation
  - Remove unused model category utilities and hardcoded mappings
  - Ensure consistent vendor data usage across all pricing views
  - Maintain backward compatibility with existing pricing calculation logic

This refactor provides a more scalable vendor-based architecture while eliminating
data redundancy and improving user experience with real-time backend data integration.

web/src/components/table/model-pricing/view/table/PricingTableColumns.js

@@ -20,7 +20,8 @@ For commercial licensing, please contact support@quantumnous.com
 import React from 'react';
 import { Tag, Space, Tooltip } from '@douyinfe/semi-ui';
 import { IconHelpCircle } from '@douyinfe/semi-icons';
-import { renderModelTag, stringToColor, calculateModelPrice } from '../../../../../helpers';
+import { renderModelTag, stringToColor, calculateModelPrice, getLobeHubIcon } from '../../../../../helpers';
+import { renderLimitedItems, renderDescription } from '../../../../common/ui/RenderUtils';
 
 function renderQuotaType(type, t) {
   switch (type) {
@@ -41,6 +42,31 @@ function renderQuotaType(type, t) {
   }
 }
 
+// Render vendor name
+const renderVendor = (vendorName, vendorIcon, t) => {
+  if (!vendorName) return '-';
+  return (
+    <Tag color='white' shape='circle' prefixIcon={getLobeHubIcon(vendorIcon || 'Layers', 14)}>
+      {vendorName}
+    </Tag>
+  );
+};
+
+// Render tags list using RenderUtils
+const renderTags = (text) => {
+  if (!text) return '-';
+  const tagsArr = text.split(',').filter(tag => tag.trim());
+  return renderLimitedItems({
+    items: tagsArr,
+    renderItem: (tag, idx) => (
+      <Tag key={idx} color={stringToColor(tag.trim())} shape='circle' size='small'>
+        {tag.trim()}
+      </Tag>
+    ),
+    maxDisplay: 3
+  });
+};
+
 function renderSupportedEndpoints(endpoints) {
   if (!endpoints || endpoints.length === 0) {
     return null;
@@ -104,7 +130,25 @@ export const getPricingTableColumns = ({
     sorter: (a, b) => a.quota_type - b.quota_type,
   };
 
-  const baseColumns = [modelNameColumn, quotaColumn];
+  const descriptionColumn = {
+    title: t('描述'),
+    dataIndex: 'description',
+    render: (text) => renderDescription(text, 200),
+  };
+
+  const tagsColumn = {
+    title: t('标签'),
+    dataIndex: 'tags',
+    render: renderTags,
+  };
+
+  const vendorColumn = {
+    title: t('供应商'),
+    dataIndex: 'vendor_name',
+    render: (text, record) => renderVendor(text, record.vendor_icon, t),
+  };
+
+  const baseColumns = [modelNameColumn, vendorColumn, descriptionColumn, tagsColumn, quotaColumn];
 
   const ratioColumn = {
     title: () => (