diff --git a/backend/mci-server/src/main/java/com/sino/mci/config/FlywayConfig.java b/backend/mci-server/src/main/java/com/sino/mci/config/FlywayConfig.java
index 8b1bb2a..363df29 100644
--- a/backend/mci-server/src/main/java/com/sino/mci/config/FlywayConfig.java
+++ b/backend/mci-server/src/main/java/com/sino/mci/config/FlywayConfig.java
@@ -3,6 +3,7 @@ package com.sino.mci.config;
 import javax.sql.DataSource;
 
 import org.flywaydb.core.Flyway;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -12,11 +13,14 @@ import org.springframework.context.annotation.Configuration;
 public class FlywayConfig {
 
     @Bean(initMethod = "migrate")
-    public Flyway flyway(DataSource dataSource) {
+    public Flyway flyway(
+            DataSource dataSource,
+            @Value("${spring.flyway.locations:classpath:db/migration}") String[] locations,
+            @Value("${spring.flyway.baseline-on-migrate:true}") boolean baselineOnMigrate) {
         return Flyway.configure()
                 .dataSource(dataSource)
-                .locations("classpath:db/migration")
-                .baselineOnMigrate(true)
+                .locations(locations)
+                .baselineOnMigrate(baselineOnMigrate)
                 .load();
     }
 }
diff --git a/backend/mci-server/src/main/resources/db/migration/V1__init_account.sql b/backend/mci-server/src/main/resources/db/migration/V1__init_account.sql
index b811187..72edfb2 100644
--- a/backend/mci-server/src/main/resources/db/migration/V1__init_account.sql
+++ b/backend/mci-server/src/main/resources/db/migration/V1__init_account.sql
@@ -16,7 +16,8 @@ CREATE TABLE IF NOT EXISTS mci_platform_role (
     role_name VARCHAR(128) NOT NULL COMMENT '角色名称',
     permissions JSON COMMENT '权限列表',
     status TINYINT NOT NULL DEFAULT 1,
-    create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+    create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    update_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='平台角色表';
 
 CREATE TABLE IF NOT EXISTS mci_user (
@@ -41,3 +42,7 @@ CREATE TABLE IF NOT EXISTS mci_user_role (
     create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     UNIQUE KEY uk_user_role (user_id, role_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户角色关系表';
+
+ALTER TABLE mci_user_role
+    ADD CONSTRAINT fk_user_role_user_id FOREIGN KEY (user_id) REFERENCES mci_user (id),
+    ADD CONSTRAINT fk_user_role_role_id FOREIGN KEY (role_id) REFERENCES mci_platform_role (id);
diff --git a/backend/mci-server/src/main/resources/db/migration/V2__seed_roles.sql b/backend/mci-server/src/main/resources/db/migration/V2__seed_roles.sql
index a423ccd..e0073ca 100644
--- a/backend/mci-server/src/main/resources/db/migration/V2__seed_roles.sql
+++ b/backend/mci-server/src/main/resources/db/migration/V2__seed_roles.sql
@@ -1,4 +1,4 @@
-INSERT INTO mci_platform_role (role_code, role_name, permissions) VALUES
+INSERT IGNORE INTO mci_platform_role (role_code, role_name, permissions) VALUES
 ('admin', '租户管理员', '["*"]'),
 ('operator', '运营操作员', '["send:write", "channel:read", "channel:write", "record:read"]'),
 ('viewer', '只读用户', '["record:read", "channel:read"]');
diff --git a/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java b/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java
index 2b3d727..298c0f9 100644
--- a/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java
+++ b/backend/mci-shared/src/main/java/com/sino/mci/shared/entity/BaseEntity.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.annotation.FieldFill;
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableLogic;
 import lombok.Getter;
 import lombok.Setter;
 
@@ -24,4 +25,7 @@ public abstract class BaseEntity implements Serializable {
 
     @TableField(fill = FieldFill.INSERT_UPDATE)
     private LocalDateTime updateTime;
+
+    @TableLogic
+    private Integer deleted;
 }