feat: 添加贡献模式昵称和QQ字段，更新相关逻辑和测试

background/contribution-oauth.js

@@ -10,6 +10,8 @@
   const RUNTIME_DEFAULTS = {
     contributionMode: false,
     contributionModeExpected: false,
+    contributionNickname: '',
+    contributionQq: '',
     contributionSessionId: '',
     contributionAuthUrl: '',
     contributionAuthState: '',
@@ -250,6 +252,11 @@
       return nickname || 'codex-extension-user';
     }
 
+    function buildContributionQq(state = {}, preferredQq = '') {
+      const qq = normalizeString(preferredQq) || normalizeString(state.contributionQq);
+      return qq;
+    }
+
     function buildStatusMessage(status, payload = {}) {
       const label = getStatusLabel(status);
       const details = [
@@ -592,6 +599,7 @@
         method: 'POST',
         body: {
           nickname: buildNickname(currentState, options.nickname),
+          qq: buildContributionQq(currentState, options.qq),
           source: 'cpa',
           channel: 'codex-extension',
         },