feat: add LionCCAPI provider preset with partner promotion

Add LionCCAPI as a third-party partner provider across all five apps
(Claude, Codex, Gemini, OpenCode, OpenClaw) with anthropic-messages
protocol for OpenCode and OpenClaw. Include partner promotion i18n
entries for zh/en/ja locales and lioncc icon.

src/config/geminiProviderPresets.ts

@@ -224,6 +224,23 @@ export const geminiProviderPresets: GeminiProviderPreset[] = [
     icon: "ctok",
     iconColor: "#000000",
   },
+  {
+    name: "LionCCAPI",
+    websiteUrl: "https://vibecodingapi.ai",
+    settingsConfig: {
+      env: {
+        GOOGLE_GEMINI_BASE_URL: "https://vibecodingapi.ai",
+        GEMINI_MODEL: "gemini-3.1-pro",
+      },
+    },
+    baseURL: "https://vibecodingapi.ai",
+    model: "gemini-3.1-pro",
+    description: "LionCCAPI",
+    category: "third_party",
+    isPartner: true,
+    partnerPromotionKey: "lionccapi",
+    icon: "lioncc",
+  },
   {
     name: "OpenRouter",
     websiteUrl: "https://openrouter.ai",