feat: enable Swagger in development

README.md

@@ -3,3 +3,5 @@
 Java 17 / Spring Boot 4.1 / MySQL 8 / MyBatis-Plus DDD 脚手架。
 
 设置 `DIGITAL_RMB_DB_URL`、`DIGITAL_RMB_DB_USERNAME`、`DIGITAL_RMB_DB_PASSWORD`、`DIGITAL_RMB_JWT_SECRET`（至少 64 字符）、`DIGITAL_RMB_BOOTSTRAP_ADMIN_USERNAME`、`DIGITAL_RMB_BOOTSTRAP_ADMIN_PASSWORD` 后运行 `mvn spring-boot:run`。测试使用内存 H2：`mvn test`。
+
+开发时以 `--spring.profiles.active=dev` 启动，控制台会打印 Swagger UI 地址：`http://localhost:8080/swagger-ui/index.html`；生产默认关闭 Swagger UI。

src/main/java/com/yau/digitalrmb/shared/config/SwaggerStartupLogger.java

@@ -0,0 +1,30 @@
+package com.yau.digitalrmb.shared.config;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SwaggerStartupLogger {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SwaggerStartupLogger.class);
+    private final Environment environment;
+
+    public SwaggerStartupLogger(Environment environment) {
+        this.environment = environment;
+    }
+
+    @EventListener(ApplicationReadyEvent.class)
+    public void printSwaggerAddresses() {
+        if (!environment.getProperty("springdoc.swagger-ui.enabled", Boolean.class, false)) {
+            return;
+        }
+        String port = environment.getProperty("local.server.port", environment.getProperty("server.port", "8080"));
+        String contextPath = environment.getProperty("server.servlet.context-path", "");
+        String baseUrl = "http://localhost:" + port + contextPath;
+        LOGGER.info("Swagger UI: {}/swagger-ui/index.html", baseUrl);
+        LOGGER.info("OpenAPI JSON: {}/v3/api-docs", baseUrl);
+    }
+}

src/main/resources/application-dev.yml

@@ -0,0 +1,3 @@
+springdoc:
+  swagger-ui:
+    enabled: true