검증게시판 기능 추가

backend/src/main/resources/application.yml

@@ -2,6 +2,11 @@ spring:
   application:
     name: goldenchart-backend
 
+  servlet:
+    multipart:
+      max-file-size: 6MB
+      max-request-size: 30MB
+
   profiles:
     active: ${SPRING_PROFILES_ACTIVE:local}
 
@@ -95,6 +100,10 @@ goldenchart:
       enabled: true
       tick-ms: 1000
       queue-capacity: 16
+  verification:
+    upload-dir: ${GC_VERIFICATION_UPLOAD_DIR:data/verification-images}
+    max-image-size-mb: 5
+    max-images-per-issue: 30
   cors:
     allowed-origins:
       - http://localhost:5173