diff --git a/.env b/.env
index aec3820..644cfcd 100644
--- a/.env
+++ b/.env
@@ -8,7 +8,7 @@ JWT_EXPIRES_IN=7d
 JWT_REFRESH_EXPIRES_IN=30d
 
 # Database (SQLite for local development, PostgreSQL for production)
-DATABASE_URL=E:/qia/server/prisma/dev.db
+DATABASE_URL=file:./prisma/dev.db
 
 # PostgreSQL (for production - Tencent Cloud)
 # DATABASE_URL=postgresql://qia_admin:your-password@postgres.ap-shanghai.myqcloud.com:5432/qia
diff --git a/package-lock.json b/package-lock.json
index 4ee0a21..80f6e9f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "qia-server",
-  "version": "0.1.0",
+  "version": "0.2.0-alpha",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "qia-server",
-      "version": "0.1.0",
+      "version": "0.2.0-alpha",
       "dependencies": {
         "@libsql/client": "^0.17.0",
         "@prisma/adapter-libsql": "^7.3.0",
@@ -19,7 +19,6 @@
         "express-validator": "^7.1.0",
         "helmet": "^8.0.0",
         "jsonwebtoken": "^9.0.2",
-        "sql.js": "^1.13.0",
         "zod": "^3.23.8"
       },
       "devDependencies": {
@@ -31,6 +30,7 @@
         "@types/jsonwebtoken": "^9.0.7",
         "@types/node": "^22.5.5",
         "prisma": "^5.22.0",
+        "sql.js": "^1.13.0",
         "tsx": "^4.19.0",
         "typescript": "^5.6.2"
       }
@@ -2321,6 +2321,7 @@
       "version": "1.13.0",
       "resolved": "https://registry.npmmirror.com/sql.js/-/sql.js-1.13.0.tgz",
       "integrity": "sha512-RJbVP1HRDlUUXahJ7VMTcu9Rm1Nzw+EBpoPr94vnbD4LwR715F3CcxE2G2k45PewcaZ57pjetYa+LoSJLAASgA==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/statuses": {
diff --git a/package.json b/package.json
index 6443677..687af1d 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,6 @@
     "express-validator": "^7.1.0",
     "helmet": "^8.0.0",
     "jsonwebtoken": "^9.0.2",
-    "sql.js": "^1.13.0",
     "zod": "^3.23.8"
   },
   "devDependencies": {
@@ -36,6 +35,7 @@
     "@types/jsonwebtoken": "^9.0.7",
     "@types/node": "^22.5.5",
     "prisma": "^5.22.0",
+    "sql.js": "^1.13.0",
     "tsx": "^4.19.0",
     "typescript": "^5.6.2"
   }
diff --git a/scripts/add-reminder-times.cjs b/scripts/add-reminder-times.cjs
new file mode 100644
index 0000000..f14655a
--- /dev/null
+++ b/scripts/add-reminder-times.cjs
@@ -0,0 +1,26 @@
+const initSqlJs = require('sql.js');
+const fs = require('fs');
+
+async function main() {
+  const SQL = await initSqlJs();
+  const db = new SQL.Database('e:/qia/server/prisma/dev.db');
+
+  try {
+    db.run("ALTER TABLE events ADD COLUMN reminder_times TEXT DEFAULT NULL");
+    console.log('reminder_times column added successfully');
+  } catch (error) {
+    if (error.message.includes('duplicate column name') || error.message.includes('already exists')) {
+      console.log('reminder_times column already exists');
+    } else {
+      console.error('Error:', error.message);
+    }
+  }
+
+  const data = db.export();
+  const buffer = Buffer.from(data);
+  fs.writeFileSync('e:/qia/server/prisma/dev.db', buffer);
+
+  db.close();
+}
+
+main().catch(console.error);