feat: implement admin dashboard with full CRUD functionality

server/api/customers/index.post.ts

@@ -0,0 +1,39 @@
+import { defineEventHandler, readBody, setResponseStatus, createError } from 'h3';
+import { db, customers } from '~/server/db';
+import bcrypt from 'bcryptjs';
+
+export default defineEventHandler(async (event) => {
+  const body = await readBody(event);
+  const { name, gender, contact, idCard, password } = body;
+
+  if (!name || !gender || !contact || !idCard || !password) {
+    return createError({ statusCode: 400, statusMessage: '请填写完整信息' });
+  }
+
+  try {
+    const hashedPassword = bcrypt.hashSync(password, 10);
+
+    await db.insert(customers).values({
+      name,
+      gender,
+      contact,
+      idCard,
+      password: hashedPassword,
+    });
+
+    return { message: '用户添加成功！' };
+
+  } catch (error: any) {
+    if (error.message?.includes('UNIQUE constraint failed')) {
+      if (error.message.includes('customers.contact')) {
+        return createError({ statusCode: 409, statusMessage: '该手机号已被注册' });
+      }
+      if (error.message.includes('customers.id_card')) {
+        return createError({ statusCode: 409, statusMessage: '该身份证号已被注册' });
+      }
+    }
+
+    console.error('Add user error:', error);
+    return createError({ statusCode: 500, statusMessage: '添加用户失败，请稍后重试' });
+  }
+});