diff --git a/packages/backend/src/database/schema.registry.ts b/packages/backend/src/database/schema.registry.ts
index f140787..e2a6d1d 100644
--- a/packages/backend/src/database/schema.registry.ts
+++ b/packages/backend/src/database/schema.registry.ts
@@ -57,7 +57,7 @@ export const tableDefinitions: TableDefinition[] = [
         init: settingsRepository.ensureDefaultSettingsExist // <-- Use the function from the repository
     },
     { name: 'audit_logs', sql: schemaSql.createAuditLogsTableSQL },
-    { name: 'api_keys', sql: schemaSql.createApiKeysTableSQL },
+    // { name: 'api_keys', sql: schemaSql.createApiKeysTableSQL }, // Removed API Keys table from registry
     { name: 'passkeys', sql: schemaSql.createPasskeysTableSQL },
     { name: 'notification_settings', sql: schemaSql.createNotificationSettingsTableSQL },
     { name: 'users', sql: schemaSql.createUsersTableSQL },
diff --git a/packages/backend/src/database/schema.ts b/packages/backend/src/database/schema.ts
index ac91931..04bf946 100644
--- a/packages/backend/src/database/schema.ts
+++ b/packages/backend/src/database/schema.ts
@@ -18,14 +18,15 @@ CREATE TABLE IF NOT EXISTS audit_logs (
 );
 `;
 
-export const createApiKeysTableSQL = `
-CREATE TABLE IF NOT EXISTS api_keys (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    name TEXT NOT NULL,
-    hashed_key TEXT UNIQUE NOT NULL,
-    created_at INTEGER NOT NULL
-);
-`;
+// Removed API Keys table definition
+// export const createApiKeysTableSQL = `
+// CREATE TABLE IF NOT EXISTS api_keys (
+//     id INTEGER PRIMARY KEY AUTOINCREMENT,
+//     name TEXT NOT NULL,
+//     hashed_key TEXT UNIQUE NOT NULL,
+//     created_at INTEGER NOT NULL
+// );
+// `;
 
 export const createPasskeysTableSQL = `
 CREATE TABLE IF NOT EXISTS passkeys (
diff --git a/packages/backend/src/index.ts b/packages/backend/src/index.ts
index 97f1552..2e992ad 100644
--- a/packages/backend/src/index.ts
+++ b/packages/backend/src/index.ts
@@ -92,6 +92,7 @@ const initializeDatabase = async () => {
     // await runMigrations(db); // Removed call to placeholder runMigrations
 
     // 检查管理员用户是否存在
+    console.log('[Index] Checking user count...'); // 添加日志：开始检查用户数量
     const userCount = await new Promise<number>((resolve, reject) => {
       // Use the resolved db instance here
       db.get('SELECT COUNT(*) as count FROM users', (err: Error | null, row: { count: number }) => { // Add type for err
@@ -102,6 +103,7 @@ const initializeDatabase = async () => {
         resolve(row.count);
       });
     });
+    console.log(`[Index] User count check completed. Found ${userCount} users.`); // 添加日志：用户数量检查完成
 
     // 检查用户数量后不再执行任何操作 (移除了自动创建和日志记录)
 
diff --git a/packages/backend/src/types/notification.types.ts b/packages/backend/src/types/notification.types.ts
index 62a2adb..977c125 100644
--- a/packages/backend/src/types/notification.types.ts
+++ b/packages/backend/src/types/notification.types.ts
@@ -13,8 +13,8 @@ export type NotificationEvent =
   | 'TAG_ADDED'
   | 'TAG_UPDATED'
   | 'TAG_DELETED'
-  | 'API_KEY_ADDED'
-  | 'API_KEY_DELETED'
+  // | 'API_KEY_ADDED' // Removed API Key events
+  // | 'API_KEY_DELETED'
   | 'PASSKEY_ADDED'
   | 'PASSKEY_DELETED'
   | 'IP_BLACKLISTED' // New event for IP blacklisting