fix: 优化留言和分享数据

server/db.js

@@ -193,4 +193,15 @@ try {
   `)
 } catch (_) {}
 
+// 分享次数：累计分享次数
+try {
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS share_count (
+      id INTEGER PRIMARY KEY CHECK (id = 1),
+      total INTEGER NOT NULL DEFAULT 0
+    );
+    INSERT OR IGNORE INTO share_count (id, total) VALUES (1, 0);
+  `)
+} catch (_) {}
+
 module.exports = db