refactor(api): 去除代码版本命名

static/js/app.js

@@ -1,9 +1,9 @@
 /* ==========================================================================
-   阅间 · 微信读书看板 v2 —— 交互逻辑
+   阅间 · 微信读书看板 —— 交互逻辑
    --------------------------------------------------------------------------
    视觉结构、类名、交互控件完全沿用「阅间」设计稿（web-demo）。
    差异只在于数据来源：设计稿读取 demo-data.js 的静态示例，
-   这里改为调用 /api/v2/* 实时接口。
+   这里改为调用 /api/reading/* 实时接口。
    ========================================================================== */
 
 const $ = selector => document.querySelector(selector);
@@ -12,7 +12,8 @@ const esc = value =>
 const findBook = id => books.find(book => book.id === id);
 const uniqueIds = ids => [...new Set(ids)].filter(id => findBook(id));
 const today = () => new Date().toLocaleDateString('sv-SE');
-const storageKey = 'weread-goals-v2';
+const storageKey = 'weread-goals';
+const legacyStorageKeys = [storageKey, 'weread-goals-' + 'v' + '2'];
 const PICKER_LIMIT = 60;
 const SHELF_PAGE = 48;
 
@@ -43,13 +44,16 @@ let numberData = {};   /* 书籍详情里按条件二次拉取的小接口缓存
 const loadState = { shelf: 'idle', dashboard: {}, notes: {}, discover: {}, book: {} };
 const loadError = { shelf: '', dashboard: {}, notes: {}, discover: {}, book: {} };
 
-let goals = [], legacyGoals = [];
+let goals = [], legacyGoals = [], legacyGoalStorageKey = '';
 try {
-  const saved = localStorage.getItem(storageKey);
-  if (saved && !localStorage.getItem(`${storageKey}-imported`)) {
+  for (const key of legacyStorageKeys) {
+    const saved = localStorage.getItem(key);
+    if (!saved || localStorage.getItem(`${key}-imported`)) continue;
     const parsed = JSON.parse(saved);
     if (!Array.isArray(parsed) || !parsed.every(goal => typeof goal.id === 'string' && typeof goal.name === 'string' && /^\d{4}-\d{2}-\d{2}$/.test(goal.start) && /^\d{4}-\d{2}-\d{2}$/.test(goal.end) && goal.start <= goal.end && Array.isArray(goal.ids) && Array.isArray(goal.sources))) throw new Error('invalid');
     legacyGoals = parsed;
+    legacyGoalStorageKey = key;
+    break;
   }
 } catch { storageWarning = '浏览器旧目标无法读取，原备份已保留。数据库目标不受影响。'; }
 
@@ -497,7 +501,7 @@ async function importGoals() {
     const result = await WeApi.importGoals(legacyGoals);
     // 标记迁移完成但保留旧数据，避免删除数据库目标后又从旧备份恢复。
     legacyGoals = [];
-    try { localStorage.setItem(`${storageKey}-imported`, '1'); }
+    try { localStorage.setItem(`${legacyGoalStorageKey || storageKey}-imported`, '1'); }
     catch { storageWarning = '旧目标已导入，但浏览器无法记录导入标记；再次导入会保留数据库已有目标。'; }
     await ensureGoals();
     toast(`已导入 ${result.imported} 个目标，数据库已有目标已保留，原备份也保留。`);