feat: auth and gateway support health check api

wfc-auth/src/main/java/org/wfc/auth/controller/TokenController.java

@@ -2,6 +2,7 @@ package org.wfc.auth.controller;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
@@ -117,4 +118,10 @@ public class TokenController {
         if ("sys".equals(form.getAuthType())) {}
         return R.fail("authentication type not supported");
     }
+
+    @GetMapping("health")
+    public R<?> health(HttpServletRequest request) {
+        // TODO: check health
+        return R.ok(null,"Auth is healthy");
+    }    
 }

wfc-gateway/src/main/java/org/wfc/gateway/config/GatewayConfig.java

@@ -4,7 +4,13 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
+import org.springframework.web.reactive.function.BodyInserters;
+import org.springframework.web.reactive.function.server.RouterFunction;
+import org.springframework.web.reactive.function.server.RouterFunctions;
+import org.springframework.web.reactive.function.server.ServerResponse;
 import org.wfc.gateway.handler.SentinelFallbackHandler;
+import org.springframework.web.reactive.function.server.RequestPredicates;
+import org.springframework.http.HttpStatus;
 
 /**
  * 网关限流配置
@@ -20,4 +26,16 @@ public class GatewayConfig
     {
         return new SentinelFallbackHandler();
     }
+
+    /**
+     * @return a RouterFunction that handles health check requests
+     */
+    @Bean
+    public RouterFunction<ServerResponse> healthCheckRoute() {
+        // TODO: Implement a health check endpoint
+        return RouterFunctions.route(RequestPredicates.GET("/health"),
+                        request -> ServerResponse.status(HttpStatus.OK)
+                                .body(BodyInserters.fromValue("Gateway is healthy"))
+                );
+    }
 }