[Refactor] BlockListController to use proper request handling

Replaced direct parameter mapping with BlockReq DTO for blocking users and updated unblockUser to retrieve the blockedUserId from the URL path. These changes improve consistency, readability, and adherence to RESTful API design principles.

Author: moon-kun-woong

src/main/java/org/dfbf/soundlink/domain/blocklist/controller/BlockListController.java

@@ -3,6 +3,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
+import org.dfbf.soundlink.domain.blocklist.dto.BlockReq;
 import org.dfbf.soundlink.domain.blocklist.service.BlockListService;
 import org.dfbf.soundlink.global.exception.ResponseResult;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
@@ -22,21 +23,21 @@ public class BlockListController {
     )
     public ResponseResult blockUser(
             @AuthenticationPrincipal Long userId,
-            @AuthenticationPrincipal Long blockUserId
+            @RequestBody BlockReq req
     ) {
-        return blockListService.blockUser(userId, blockUserId);
+        return blockListService.blockUser(userId, req.blockedUserId());
     }
 
-    @DeleteMapping
+    @DeleteMapping("/{blockedUserId}")
     @Operation(
             summary = "유저 차단 해제",
             description = "차단한 유저를 해제합니다."
     )
     public ResponseResult unblockUser(
             @AuthenticationPrincipal Long userId,
-            @AuthenticationPrincipal Long blockUserId
+            @PathVariable Long blockedUserId
     ) {
-        return blockListService.unblockUser(userId, blockUserId);
+        return blockListService.unblockUser(userId, blockedUserId);
     }
 
     @GetMapping

src/main/java/org/dfbf/soundlink/domain/blocklist/dto/BlockReq.java

@@ -0,0 +1,6 @@
+package org.dfbf.soundlink.domain.blocklist.dto;
+
+public record BlockReq(
+        Long blockedUserId
+) {
+}