feat(presets): add AiGoCode icon and partner promotion

- Add AiGoCode colored icon (blue body #5B7FFF, purple star #7C6AEF)
- Add original SVG source file for reference
- Add icon metadata with keywords and default color
- Add iconColor to AiGoCode presets for Claude, Codex, and Gemini
- Add partner promotion messages in zh/en/ja locales

src/i18n/locales/en.json

@@ -324,7 +324,8 @@
       "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!)",
       "dmxapi": "Claude Code exclusive model 66% OFF now!",
-      "cubence": "Cubence is an official partner of CC Switch. Register using this link and enter \"CCSWITCH\" promo code during recharge to get 10% off every top-up"
+      "cubence": "Cubence is an official partner of CC Switch. Register using this link and enter \"CCSWITCH\" promo code during recharge to get 10% off every top-up",
+      "aigocode": "AiGoCode is an official partner of CC Switch. Register using this link and get 10% bonus credit on your first top-up!"
     },
     "parameterConfig": "Parameter Config - {{name}} *",
     "mainModel": "Main Model (optional)",

src/i18n/locales/ja.json

@@ -324,7 +324,8 @@
       "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）",
       "dmxapi": "Claude Code 専用モデル 66% OFF 実施中！",
-      "cubence": "Cubence は CC Switch の公式パートナーです。登録後チャージ時に \"CCSWITCH\" を入力すると、毎回 10% オフ"
+      "cubence": "Cubence は CC Switch の公式パートナーです。登録後チャージ時に \"CCSWITCH\" を入力すると、毎回 10% オフ",
+      "aigocode": "AiGoCode は CC Switch の公式パートナーです。このリンクから登録すると、初回チャージ時に 10% のボーナスクレジットがもらえます！"
     },
     "parameterConfig": "パラメーター設定 - {{name}} *",
     "mainModel": "メインモデル（任意）",

src/i18n/locales/zh.json

@@ -324,7 +324,8 @@
       "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！）",
       "dmxapi": "Claude Code 专属模型 3.4 折优惠进行中！",
-      "cubence": "Cubence 是 CC Switch 的官方合作伙伴，使用此链接注册并在充值时填写 \"CCSWITCH\" 优惠码，每次充值均可享受9折优惠"
+      "cubence": "Cubence 是 CC Switch 的官方合作伙伴，使用此链接注册并在充值时填写 \"CCSWITCH\" 优惠码，每次充值均可享受9折优惠",
+      "aigocode": "AiGoCode 是 CC Switch 的官方合作伙伴，使用此链接注册首次充值时可以获得10%额度奖励！"
     },
     "parameterConfig": "参数配置 - {{name}} *",
     "mainModel": "主模型 (可选)",