feat(providers): add AICodeMirror partner preset for all apps

Register AICodeMirror icon, add i18n partner promotion texts (zh/en/ja),
and fix trailing whitespace in codexProviderPresets.

src/config/codexProviderPresets.ts

@@ -208,6 +208,25 @@ requires_openai_auth = true`,
     icon: "rc",
     iconColor: "#E96B2C",
   },
+  {
+    name: "AICodeMirror",
+    websiteUrl: "https://www.aicodemirror.com",
+    apiKeyUrl: "https://www.aicodemirror.com/register?invitecode=9915W3",
+    auth: generateThirdPartyAuth(""),
+    config: generateThirdPartyConfig(
+      "aicodemirror",
+      "https://api.aicodemirror.com/api/codex/backend-api/codex",
+      "gpt-5.2",
+    ),
+    endpointCandidates: [
+      "https://api.aicodemirror.com/api/codex/backend-api/codex",
+      "https://api.claudecode.net.cn/api/codex/backend-api/codex",
+    ],
+    isPartner: true,
+    partnerPromotionKey: "aicodemirror",
+    icon: "aicodemirror",
+    iconColor: "#000000",
+  },
   {
     name: "OpenRouter",
     websiteUrl: "https://openrouter.ai",