feat(providers): add DMXAPI as official partner

Mark DMXAPI as partner in both Claude and Codex presets with promotion
message for their Claude Code exclusive model 66% OFF offer.

src/config/claudeProviderPresets.ts

@@ -350,6 +350,8 @@ export const providerPresets: ProviderPreset[] = [
     // 请求地址候选（用于地址管理/测速），用户可自行选择/覆盖
     endpointCandidates: ["https://www.dmxapi.cn", "https://api.dmxapi.cn"],
     category: "aggregator",
+    isPartner: true, // 合作伙伴
+    partnerPromotionKey: "dmxapi", // 促销信息 i18n key
   },
   {
     name: "PackyCode",

src/config/codexProviderPresets.ts

@@ -131,6 +131,8 @@ requires_openai_auth = true`,
       "gpt-5.1-codex",
     ),
     endpointCandidates: ["https://www.dmxapi.cn/v1"],
+    isPartner: true, // 合作伙伴
+    partnerPromotionKey: "dmxapi", // 促销信息 i18n key
   },
   {
     name: "PackyCode",

src/i18n/locales/en.json

@@ -264,7 +264,8 @@
       "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",
       "minimax_cn": "MiniMax Coding Plan Special Offer, Starter from ¥9.9",
-      "minimax_en": "MiniMax Coding Plan Black Friday, Starter is now $2/mo (80% OFF!)"
+      "minimax_en": "MiniMax Coding Plan Black Friday, Starter is now $2/mo (80% OFF!)",
+      "dmxapi": "Claude Code exclusive model 66% OFF now!"
     },
     "parameterConfig": "Parameter Config - {{name}} *",
     "mainModel": "Main Model (optional)",

src/i18n/locales/ja.json

@@ -264,7 +264,8 @@
       "zhipu": "Zhipu GLM は CC Switch の公式パートナーです。リンク経由でチャージすると 10% 割引",
       "packycode": "PackyCode は CC Switch の公式パートナーです。登録後チャージ時に \"cc-switch\" を入力すると 10% オフ",
       "minimax_cn": "MiniMax Coding Plan 特別価格、Starter ¥9.9 から",
-      "minimax_en": "MiniMax Coding Plan Black Friday、Starter が月額 $2（80% OFF）"
+      "minimax_en": "MiniMax Coding Plan Black Friday、Starter が月額 $2（80% OFF）",
+      "dmxapi": "Claude Code 専用モデル 66% OFF 実施中！"
     },
     "parameterConfig": "パラメーター設定 - {{name}} *",
     "mainModel": "メインモデル（任意）",

src/i18n/locales/zh.json

@@ -264,7 +264,8 @@
       "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",
       "minimax_cn": "MiniMax Coding Plan 特惠，Starter 套餐 9.9 元起",
-      "minimax_en": "MiniMax Coding Plan 黑五特惠，Starter 套餐现仅 $2/月（2折优惠！）"
+      "minimax_en": "MiniMax Coding Plan 黑五特惠，Starter 套餐现仅 $2/月（2折优惠！）",
+      "dmxapi": "Claude Code 专属模型 3.4 折优惠进行中！"
     },
     "parameterConfig": "参数配置 - {{name}} *",
     "mainModel": "主模型 (可选)",