feat(providers): add provider categorization system

- Add ProviderCategory type with official, cn_official, aggregator, third_party, and custom categories
- Update Provider interface and Rust struct to include optional category field
- Enhance ProviderForm to automatically sync category when selecting presets
- Improve PresetSelector to show category-based styling and hints
- Add category classification to all provider presets
- Support differentiated interactions (e.g., hide API key input for official providers)
- Maintain backward compatibility with existing configurations

src/config/codexProviderPresets.ts

@@ -1,12 +1,15 @@
 /**
  * Codex 预设供应商配置模板
  */
+import { ProviderCategory } from "../types";
+
 export interface CodexProviderPreset {
   name: string;
   websiteUrl: string;
   auth: Record<string, any>; // 将写入 ~/.codex/auth.json
   config: string; // 将写入 ~/.codex/config.toml（TOML 字符串）
   isOfficial?: boolean; // 标识是否为官方预设
+  category?: ProviderCategory; // 新增：分类
 }
 
 export const codexProviderPresets: CodexProviderPreset[] = [
@@ -14,6 +17,7 @@ export const codexProviderPresets: CodexProviderPreset[] = [
     name: "Codex官方",
     websiteUrl: "https://chatgpt.com/codex",
     isOfficial: true,
+    category: "official",
     // 官方的 key 为null
     auth: {
       OPENAI_API_KEY: null,
@@ -23,6 +27,7 @@ export const codexProviderPresets: CodexProviderPreset[] = [
   {
     name: "PackyCode",
     websiteUrl: "https://codex.packycode.com/",
+    category: "third_party",
     // PackyCode 一般通过 API Key；请将占位符替换为你的实际 key
     auth: {
       OPENAI_API_KEY: "sk-your-api-key-here",