feat: 添加AOP支持和更新链接控制器逻辑

主要修改:
1. 在pom.xml中新增spring-boot-starter-aop依赖，支持面向切面编程。
2. 在LinkController中移除DeviceCodeMappingService的依赖，更新二维码获取逻辑，使用linkStatusService获取设备ID。
3. 在SelectRegionResponse中新增mecmachineId字段，便于调试和维护。
4. 在SecurityConfig中允许二维码HEAD请求公开访问。

技术细节:
- 通过引入AOP支持，提升了代码的可维护性和扩展性，同时优化了链接控制器的逻辑，确保设备ID的获取更加灵活。

src/main/java/com/gameplatform/server/controller/link/LinkController.java

@@ -15,7 +15,6 @@ import com.gameplatform.server.model.dto.link.UserLinkStatusResponse;
 import com.gameplatform.server.service.link.LinkGenerationService;
 import com.gameplatform.server.service.link.LinkListService;
 import com.gameplatform.server.service.link.LinkStatusService;
-import com.gameplatform.server.service.device.DeviceCodeMappingService;
 import com.gameplatform.server.service.external.ScriptClient;
 import io.jsonwebtoken.Claims;
 import io.swagger.v3.oas.annotations.Operation;
@@ -41,18 +40,15 @@ public class LinkController {
     private final LinkGenerationService linkGenerationService;
     private final LinkStatusService linkStatusService;
     private final LinkListService linkListService;
-    private final DeviceCodeMappingService deviceCodeMappingService;
     private final ScriptClient scriptClient;
 
     public LinkController(LinkGenerationService linkGenerationService, 
                          LinkStatusService linkStatusService,
                          LinkListService linkListService,
-                         DeviceCodeMappingService deviceCodeMappingService,
                          ScriptClient scriptClient) {
         this.linkGenerationService = linkGenerationService;
         this.linkStatusService = linkStatusService;
         this.linkListService = linkListService;
-        this.deviceCodeMappingService = deviceCodeMappingService;
         this.scriptClient = scriptClient;
     }
 
@@ -182,35 +178,6 @@ public class LinkController {
                 });
     }
 
-//    @GetMapping("/{codeNo}/status")
-//    @Operation(summary = "获取链接状态", description = "根据链接编号获取链接的详细状态信息，包括过期时间、奖励点数、当前状态等")
-//    public Mono<LinkStatusResponse> getLinkStatus(@PathVariable("codeNo") String codeNo) {
-//        log.info("=== 开始查询链接状态 ===");
-//        log.info("链接编号: {}", codeNo);
-//
-//        return linkStatusService.getLinkStatus(codeNo)
-//                .doOnSuccess(response -> {
-//                    log.info("链接状态查询成功: codeNo={}, status={}, isExpired={}",
-//                            codeNo, response.getStatus(), response.getIsExpired());
-//                })
-//                .doOnError(error -> {
-//                    log.error("链接状态查询失败: codeNo={}, error={}", codeNo, error.getMessage(), error);
-//                });
-//    }
-//
-//    @GetMapping("/{codeNo}/exists")
-//    @Operation(summary = "检查链接是否存在", description = "检查指定链接编号是否存在")
-//    public Mono<Boolean> isLinkExists(@PathVariable("codeNo") String codeNo) {
-//        log.debug("检查链接是否存在: codeNo={}", codeNo);
-//        return linkStatusService.isLinkExists(codeNo);
-//    }
-//
-//    @GetMapping("/{codeNo}/valid")
-//    @Operation(summary = "检查链接是否有效", description = "检查指定链接是否有效（未过期且状态正常）")
-//    public Mono<Boolean> isLinkValid(@PathVariable("codeNo") String codeNo) {
-//        log.debug("检查链接是否有效: codeNo={}", codeNo);
-//        return linkStatusService.isLinkValid(codeNo);
-//    }
 @DeleteMapping("/{codeNo}")
 @Operation(summary = "删除链接", description = "删除指定的链接，用户只能删除自己创建的链接")
 public Mono<Boolean> deleteLink(@PathVariable("codeNo") String codeNo, Authentication authentication) {
@@ -464,31 +431,31 @@ public Mono<Boolean> deleteLink(@PathVariable("codeNo") String codeNo, Authentic
      * 代理二维码获取接口
      * 通过代理code获取真实设备的二维码，避免暴露设备编号
      */
-    @GetMapping("/qr/{proxyCode}")
+    @GetMapping("/qr/{code}")
     @Operation(summary = "获取二维码", description = "通过代理code获取设备二维码，用于扫码上号")
-    public Mono<ResponseEntity<byte[]>> getProxyQrCode(@PathVariable("proxyCode") String proxyCode) {
+    public Mono<ResponseEntity<byte[]>> getProxyQrCode(@PathVariable("code") String code) {
         log.info("=== 获取代理二维码 ===");
-        log.info("代理code: {}", proxyCode);
+        log.info("代理code: {}", code);
         
-        // 验证代理code是否有效
-        if (!deviceCodeMappingService.isValidProxyCode(proxyCode)) {
-            log.warn("无效的代理code: {}", proxyCode);
-            return Mono.just(ResponseEntity.notFound().build());
-        }
+//        // 验证代理code是否有效
+//        if (!deviceCodeMappingService.isValidProxyCode(proxyCode)) {
+//            log.warn("无效的代理code: {}", proxyCode);
+//            return Mono.just(ResponseEntity.notFound().build());
+//        }
         
         // 获取真实设备编号
-        String deviceId = deviceCodeMappingService.getDeviceId(proxyCode);
-        if (deviceId == null) {
-            log.warn("代理code对应的设备不存在: {}", proxyCode);
+        String meachainId = linkStatusService.getMechainIdByCode(code);
+        if (meachainId == null) {
+            log.warn("代理code对应的设备不存在: {}", code);
             return Mono.just(ResponseEntity.notFound().build());
         }
         
-        log.info("代理code {} 对应设备: {}", proxyCode, deviceId);
+        log.info("代理code {} 对应设备: {}", code, meachainId);
         
         // 获取真实设备的二维码
-        return scriptClient.getDeviceQrCode(deviceId)
+        return scriptClient.getDeviceQrCode(meachainId)
                 .map(qrData -> {
-                    log.info("获取设备 {} 二维码成功，大小: {} 字节", deviceId, qrData.length);
+                    log.info("获取设备 {} 二维码成功，大小: {} 字节", meachainId, qrData.length);
                     
                     // 设置响应头
                     HttpHeaders headers = new HttpHeaders();
@@ -502,14 +469,14 @@ public Mono<Boolean> deleteLink(@PathVariable("codeNo") String codeNo, Authentic
                             .body(qrData);
                 })
                 .onErrorResume(error -> {
-                    log.error("获取设备 {} 二维码失败: {}", deviceId, error.getMessage(), error);
+                    log.error("获取设备 {} 二维码失败: {}", meachainId, error.getMessage(), error);
                     
                     // 如果是404错误，返回404；其他错误返回500
                     if (error instanceof WebClientResponseException.NotFound) {
-                        log.warn("设备 {} 的二维码文件不存在，返回404", deviceId);
+                        log.warn("设备 {} 的二维码文件不存在，返回404", meachainId);
                         return Mono.just(ResponseEntity.status(HttpStatus.NOT_FOUND).build());
                     } else {
-                        log.error("获取设备 {} 二维码时发生系统错误", deviceId);
+                        log.error("获取设备 {} 二维码时发生系统错误", meachainId);
                         return Mono.just(ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build());
                     }
                 });