feat(preset): add MiniMax as official partner with Black Friday promotion

- Mark MiniMax as partner with custom theme color (#f64551)
- Add Black Friday promotional text for Starter plan ($2/mo, 80% OFF)
- Update apiKeyUrl to MiniMax coding plan subscription page

src/config/claudeProviderPresets.ts

@@ -220,7 +220,7 @@ export const providerPresets: ProviderPreset[] = [
   {
     name: "MiniMax",
     websiteUrl: "https://platform.minimaxi.com",
-    apiKeyUrl: "https://platform.minimaxi.com/user-center/basic-information",
+    apiKeyUrl: "https://platform.minimax.io/subscribe/coding-plan",
     settingsConfig: {
       env: {
         ANTHROPIC_BASE_URL: "https://api.minimaxi.com/anthropic",
@@ -234,6 +234,12 @@ export const providerPresets: ProviderPreset[] = [
       },
     },
     category: "cn_official",
+    isPartner: true,
+    partnerPromotionKey: "minimax",
+    theme: {
+      backgroundColor: "#f64551",
+      textColor: "#FFFFFF",
+    },
   },
   {
     name: "DouBaoSeed",

src/i18n/locales/en.json

@@ -261,7 +261,8 @@
     "getApiKey": "Get API Key",
     "partnerPromotion": {
       "zhipu": "Zhipu GLM is an official partner of CC Switch. Use this link to top up and get a 10% discount",
-      "packycode": "PackyCode is an official partner of CC Switch. Register using this link and enter \"cc-switch\" promo code during recharge to get 10% off"
+      "packycode": "PackyCode is an official partner of CC Switch. Register using this link and enter \"cc-switch\" promo code during recharge to get 10% off",
+      "minimax": "MiniMax Coding Plan Black Friday, Starter is now $2/mo (80% OFF!)"
     },
     "parameterConfig": "Parameter Config - {{name}} *",
     "mainModel": "Main Model (optional)",

src/i18n/locales/zh.json

@@ -261,7 +261,8 @@
     "getApiKey": "获取 API Key",
     "partnerPromotion": {
       "zhipu": "智谱 GLM 是 CC Switch 的官方合作伙伴，使用此链接充值可以获得9折优惠",
-      "packycode": "PackyCode 是 CC Switch 的官方合作伙伴，使用此链接注册并在充值时填写 \"cc-switch\" 优惠码，可以享受9折优惠"
+      "packycode": "PackyCode 是 CC Switch 的官方合作伙伴，使用此链接注册并在充值时填写 \"cc-switch\" 优惠码，可以享受9折优惠",
+      "minimax": "MiniMax Coding Plan 黑五特惠，Starter 套餐现仅 $2/月（2折优惠！）"
     },
     "parameterConfig": "参数配置 - {{name}} *",
     "mainModel": "主模型 (可选)",