修复登录报错提示内容错误，增加节假日同步功能

server/routes/admin.js

@@ -147,10 +147,26 @@ router.delete('/clients/:id', (req, res) => {
 // Workday Settings
 // ========================
 
-router.get('/workdays', (req, res) => {
+router.get('/workdays', async (req, res) => {
     const db = getDB(req);
     const year = parseInt(req.query.year) || new Date().getFullYear();
-    const workdays = db.all('SELECT * FROM workdays WHERE year = ? ORDER BY month', [year]);
+    let workdays = db.all('SELECT * FROM workdays WHERE year = ? ORDER BY month', [year]);
+    
+    // Auto-calculate and seed if database is empty for this year
+    if (workdays.length === 0) {
+        try {
+            const { getHolidays, calculateMonthlyWorkdays } = require('../utils/holiday');
+            const holidayMap = await getHolidays(db, year);
+            const computed = calculateMonthlyWorkdays(year, holidayMap);
+            for (const item of computed) {
+                db.run('INSERT OR IGNORE INTO workdays (year, month, days) VALUES (?, ?, ?)', [year, item.month, item.days]);
+            }
+            workdays = db.all('SELECT * FROM workdays WHERE year = ? ORDER BY month', [year]);
+        } catch (e) {
+            console.error('[Admin] Error auto-seeding workdays:', e.message);
+        }
+    }
+    
     res.json({ code: 200, data: workdays });
 });
 
@@ -169,6 +185,31 @@ router.post('/workdays', (req, res) => {
     res.json({ code: 200, message: '设置成功' });
 });
 
+// POST /api/admin/workdays/sync — manually trigger network sync
+router.post('/workdays/sync', async (req, res) => {
+    const db = getDB(req);
+    const { year } = req.body;
+    if (!year) return res.status(400).json({ code: 400, message: '请指定要同步的年份' });
+    
+    try {
+        const { syncYearWorkdays } = require('../utils/holiday');
+        const workdaysList = await syncYearWorkdays(db, parseInt(year));
+        res.json({ code: 200, message: '自动同步成功', data: workdaysList });
+    } catch (e) {
+        console.error('[Admin] Sync error:', e.message);
+        res.status(500).json({ code: 500, message: e.message });
+    }
+});
+
+// GET /api/admin/holidays — retrieve holiday data for a specific year
+router.get('/holidays', async (req, res) => {
+    const db = getDB(req);
+    const year = parseInt(req.query.year) || new Date().getFullYear();
+    const { getHolidays } = require('../utils/holiday');
+    const holidayMap = await getHolidays(db, year);
+    res.json({ code: 200, data: holidayMap || {} });
+});
+
 // ========================
 // Global Stats
 // ========================

server/routes/rd.js

@@ -20,6 +20,15 @@ router.get('/project-types', (req, res) => {
     res.json({ code: 200, data: db.all('SELECT id, name FROM project_types ORDER BY id') });
 });
 
+// GET /api/rd/holidays — retrieve holiday data for a specific year
+router.get('/holidays', async (req, res) => {
+    const db = getDB(req);
+    const year = parseInt(req.query.year) || new Date().getFullYear();
+    const { getHolidays } = require('../utils/holiday');
+    const holidayMap = await getHolidays(db, year);
+    res.json({ code: 200, data: holidayMap || {} });
+});
+
 // GET /api/rd/timesheets?date=YYYY-MM-DD or ?month=YYYY-MM
 router.get('/timesheets', (req, res) => {
     const db = getDB(req);