feat: add completion query and configurable system identity

zzw

昨天 1332cc511936d7dbe804921bc733c83d5e4d1400

 emergency-repair-server/pom.xml

@@ -29,6 +29,10 @@
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-crypto</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>${mybatis-plus.version}</version>