chore: 整理项目结构，清理归档文件，更新部署配置

temp_create_agent.sql

@@ -0,0 +1,21 @@
+-- 为用户 sxn 创建坐席记录，并设置初始密码
+-- 密码: admin123 (bcrypt hash)
+INSERT INTO agents (id, user_id, name, status, current_load, max_load, created_at, updated_at, role, skill_tags, password_hash)
+VALUES (
+    'agent-sxn-001',
+    'sxn',
+    '宋献',
+    'offline',
+    0,
+    5,
+    NOW(),
+    NOW(),
+    'agent',
+    '[]',
+    '$2b$12$LQv3c1yqBWVHxkd0LHAkCOYz6TtxMQJqhN8/LewY5ePLF3Sp.c6O'
+) ON CONFLICT (user_id) DO UPDATE SET
+    name = '宋献',
+    password_hash = '$2b$12$LQv3c1yqBWVHxkd0LHAkCOYz6TtxMQJqhN8/LewY5ePLF3Sp.c6O';
+
+-- 验证
+SELECT user_id, name, status, role FROM agents WHERE user_id = 'sxn';