feat: 接入 Prometheus 监控（放行 /actuator/prometheus + 指标暴露 + compose 编排）

fruitshorts-admin-api/src/main/resources/application.yml

@@ -66,3 +66,15 @@ springdoc:
 logging:
   level:
     com.fruitshorts: debug
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: prometheus,health
+  endpoint:
+    health:
+      show-details: always
+  metrics:
+    tags:
+      application: ${spring.application.name}