feat: Add new model management features

- Implement `/api/channel/models_enabled` endpoint to retrieve enabled models
- Add `EnabledListModels` handler in controller
- Create new `ModelRatioNotSetEditor` component for managing unset model ratios
- Update router to include new models_enabled route
- Add internationalization support for new model management UI
- Include GPT-4.5 preview model in OpenAI model list

web/src/i18n/locales/en.json

@@ -1280,5 +1280,42 @@
   "频率限制的周期（分钟）": "Rate limit period (minutes)",
   "只包括请求成功的次数": "Only include successful request times",
   "保存模型速率限制": "Save model rate limit settings",
-  "速率限制设置": "Rate limit settings"
+  "速率限制设置": "Rate limit settings",
+  "获取启用模型失败:": "Failed to get enabled models:",
+  "获取启用模型失败": "Failed to get enabled models",
+  "JSON解析错误:": "JSON parsing error:",
+  "保存失败:": "Save failed:",
+  "输入模型倍率": "Enter model ratio",
+  "输入补全倍率": "Enter completion ratio",
+  "请输入数字": "Please enter a number",
+  "模型名称已存在": "Model name already exists",
+  "添加成功": "Added successfully",
+  "请先选择需要批量设置的模型": "Please select models for batch setting first",
+  "请输入模型倍率和补全倍率": "Please enter model ratio and completion ratio",
+  "请输入有效的数字": "Please enter a valid number",
+  "请输入填充值": "Please enter a value",
+  "批量设置成功": "Batch setting successful",
+  "已为 {{count}} 个模型设置{{type}}": "Set {{type}} for {{count}} models",
+  "固定价格": "Fixed Price",
+  "模型倍率和补全倍率": "Model Ratio and Completion Ratio",
+  "批量设置": "Batch Setting",
+  "搜索模型名称": "Search model name",
+  "此页面仅显示未设置价格或倍率的模型，设置后将自动从列表中移除": "This page only shows models without price or ratio settings. After setting, they will be automatically removed from the list",
+  "没有未设置的模型": "No unconfigured models",
+  "定价模式": "Pricing Mode",
+  "固定价格(每次)": "Fixed Price (per use)",
+  "输入每次价格": "Enter per-use price",
+  "批量设置模型参数": "Batch Set Model Parameters",
+  "设置类型": "Setting Type",
+  "模型倍率值": "Model Ratio Value",
+  "补全倍率值": "Completion Ratio Value",
+  "请输入模型倍率": "Enter model ratio",
+  "请输入补全倍率": "Enter completion ratio",
+  "请输入数值": "Enter a value",
+  "将为选中的 ": "Will set for selected ",
+  " 个模型设置相同的值": " models with the same value",
+  "当前设置类型: ": "Current setting type: ",
+  "固定价格值": "Fixed Price Value",
+  "未设置倍率模型": "Models without ratio settings",
+  "模型倍率和补全倍率同时设置": "Both model ratio and completion ratio are set"
 }