🚀 feat: Introduce full Model & Vendor Management suite (backend + frontend) and UI refinements

Backend
• Add `model/model_meta.go` and `model/vendor_meta.go` defining Model & Vendor entities with CRUD helpers, soft-delete and time stamps
• Create corresponding controllers `controller/model_meta.go`, `controller/vendor_meta.go` and register routes in `router/api-router.go`
• Auto-migrate new tables in DB startup logic

Frontend
• Build complete “Model Management” module under `/console/models`
  - New pages, tables, filters, actions, hooks (`useModelsData`) and dynamic vendor tabs
  - Modals `EditModelModal.jsx` & unified `EditVendorModal.jsx`; latter now uses default confirm/cancel footer and mobile-friendly modal sizing (`full-width` / `small`) via `useIsMobile`
• Update sidebar (`SiderBar.js`) and routing (`App.js`) to surface the feature
• Add helper updates (`render.js`) incl. `stringToColor`, dynamic LobeHub icon retrieval, and tag color palettes

Table UX improvements
• Replace separate status column with inline Enable / Disable buttons in operation column (matching channel table style)
• Limit visible tags to max 3; overflow represented as “+x” tag with padded `Popover` showing remaining tags
• Color all tags deterministically using `stringToColor` for consistent theming
• Change vendor column tag color to white for better contrast

Misc
• Minor layout tweaks, compact-mode toggle relocation, lint fixes and TypeScript/ESLint clean-up

These changes collectively deliver end-to-end model & vendor administration while unifying visual language across management tables.

model/vendor_meta.go

@@ -0,0 +1,78 @@
+package model
+
+import (
+    "one-api/common"
+
+    "gorm.io/gorm"
+)
+
+// Vendor 用于存储供应商信息，供模型引用
+// Name 唯一，用于在模型中关联
+// Icon 采用 @lobehub/icons 的图标名，前端可直接渲染
+// Status 预留字段，1 表示启用
+// 本表同样遵循 3NF 设计范式
+
+type Vendor struct {
+    Id          int            `json:"id"`
+    Name        string         `json:"name" gorm:"uniqueIndex;size:128;not null"`
+    Description string         `json:"description,omitempty" gorm:"type:text"`
+    Icon        string         `json:"icon,omitempty" gorm:"type:varchar(128)"`
+    Status      int            `json:"status" gorm:"default:1"`
+    CreatedTime int64          `json:"created_time" gorm:"bigint"`
+    UpdatedTime int64          `json:"updated_time" gorm:"bigint"`
+    DeletedAt   gorm.DeletedAt `json:"-" gorm:"index"`
+}
+
+// Insert 创建新的供应商记录
+func (v *Vendor) Insert() error {
+    now := common.GetTimestamp()
+    v.CreatedTime = now
+    v.UpdatedTime = now
+    return DB.Create(v).Error
+}
+
+// Update 更新供应商记录
+func (v *Vendor) Update() error {
+    v.UpdatedTime = common.GetTimestamp()
+    return DB.Save(v).Error
+}
+
+// Delete 软删除供应商
+func (v *Vendor) Delete() error {
+    return DB.Delete(v).Error
+}
+
+// GetVendorByID 根据 ID 获取供应商
+func GetVendorByID(id int) (*Vendor, error) {
+    var v Vendor
+    err := DB.First(&v, id).Error
+    if err != nil {
+        return nil, err
+    }
+    return &v, nil
+}
+
+// GetAllVendors 获取全部供应商（分页）
+func GetAllVendors(offset int, limit int) ([]*Vendor, error) {
+    var vendors []*Vendor
+    err := DB.Offset(offset).Limit(limit).Find(&vendors).Error
+    return vendors, err
+}
+
+// SearchVendors 按关键字搜索供应商
+func SearchVendors(keyword string, offset int, limit int) ([]*Vendor, int64, error) {
+    db := DB.Model(&Vendor{})
+    if keyword != "" {
+        like := "%" + keyword + "%"
+        db = db.Where("name LIKE ? OR description LIKE ?", like, like)
+    }
+    var total int64
+    if err := db.Count(&total).Error; err != nil {
+        return nil, 0, err
+    }
+    var vendors []*Vendor
+    if err := db.Offset(offset).Limit(limit).Order("id DESC").Find(&vendors).Error; err != nil {
+        return nil, 0, err
+    }
+    return vendors, total, nil
+}