fix(db): 修复 sql.js lastInsertRowid 误当函数调用导致 userId=0 工作组写入失败

- wrapStmt.run(): 原 lastInsertRowid?.() 误将属性当函数调用导致 undefined→0，现优先直接读取属性（number/bigint），其次调用函数，最后 SELECT 兜底
- initDb: 在 schema 执行前强制 PRAGMA foreign_keys = ON，修正 pragmaCompat 正则判断导致 FK 默认关闭
- pragmaCompat 改为通用 pragma 表达式执行，不再只匹配 foreign_keys=ON
- 根因链条：lastInsertRowid() 调用失败→返回 0→user_groups(0,gid) 全部相同 PK→INSERT OR IGNORE changes=0→40 条数据工作组全 0 写入
- build 通过

server/src/db/index.ts

@@ -31,8 +31,20 @@ function wrapStmt(db: Database & any, sql: string): StmtCompat {
       try {
         stmt.bind(bindArray(params));
         stmt.step();
-        const changes = db.getRowsModified();
-        const lastInsertRowid = (db as any).lastInsertRowid?.() ?? 0;
+        const changes = Number(db.getRowsModified?.() ?? db.rowsModified ?? 0);
+        let lastInsertRowid = 0;
+        try {
+          const prop = db.lastInsertRowid;
+          if (typeof prop === 'number') lastInsertRowid = prop;
+          else if (typeof prop === 'bigint') lastInsertRowid = Number(prop);
+          else if (typeof prop === 'function') lastInsertRowid = Number(prop() ?? 0);
+        } catch {}
+        if (lastInsertRowid === 0 && changes > 0) {
+          try {
+            const tmp = db.exec('SELECT last_insert_rowid() AS id');
+            if (tmp && tmp[0] && tmp[0].values && tmp[0].values[0]) lastInsertRowid = Number(tmp[0].values[0][0]);
+          } catch {}
+        }
         return { changes, lastInsertRowid };
       } finally {
         stmt.free();
@@ -88,10 +100,7 @@ export async function initDb() {
   extended.prepareCompat = function (sql: string) { return wrapStmt(extended, sql); };
   extended.execCompat = function (sql: string) { extended.exec(sql); };
   extended.pragmaCompat = function (expr: string) {
-    if (/foreign_keys\s*=\s*ON/i.test(expr)) {
-      // sql.js 默认开启 FK？尝试显式设置
-      try { extended.exec('PRAGMA foreign_keys = ON;'); } catch {}
-    }
+    try { extended.exec(`PRAGMA ${expr};`); } catch {}
   };
   extended.save = function () {
     const data = extended.export();
@@ -101,6 +110,8 @@ export async function initDb() {
   db = extended;
   const d = extended;
 
+  try { d.pragmaCompat('foreign_keys = ON'); } catch {}
+
   const schemaPath = path.join(__dirname, 'schema.sql');
   const schema = fs.readFileSync(schemaPath, 'utf-8');
   try { d.execCompat(schema); d.save(); } catch (e) { console.error('Schema init error', e); }