feat: HTTP 어댑터 암복호화 필터 기반 클래스 추가 및 기본 scope 수정

- BaseCryptoFilter: 빈 RuntimeContext를 반환하는 기반 클래스 추가
- CryptoFilter: 기본 scope SCOPE_BODY → SCOPE_FIELD로 변경

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/main/java/com/eactive/eai/adapter/http/dynamic/filter/BaseCryptoFilter.java

@@ -0,0 +1,21 @@
+package com.eactive.eai.adapter.http.dynamic.filter;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * HTTP 어댑터 요청/응답 암복호화 필터 기반 클래스.
+ * 
+ */
+public class BaseCryptoFilter extends CryptoFilter {
+    /**
+     * 빈 Runtime Context를 생성한다.
+     */
+    protected Map<String, String> buildRuntimeContext(Properties prop, HttpServletRequest request) {
+    	return new HashMap<>();
+    }
+
+}

src/main/java/com/eactive/eai/adapter/http/dynamic/filter/CryptoFilter.java

@@ -76,7 +76,7 @@ public abstract class CryptoFilter implements HttpAdapterFilter {
         }
 
         String moduleName = required(prop, PROP_MODULE_NAME);
-        String scope      = prop.getProperty(PROP_SCOPE, SCOPE_BODY).toUpperCase();
+        String scope      = prop.getProperty(PROP_SCOPE, SCOPE_FIELD).toUpperCase();
         String body       = toBodyString(message);
         Map<String, String> runtimeCtx = buildRuntimeContext(prop, request);
 
@@ -101,7 +101,7 @@ public abstract class CryptoFilter implements HttpAdapterFilter {
         }
 
         String moduleName = required(prop, PROP_MODULE_NAME);
-        String scope      = prop.getProperty(PROP_SCOPE, SCOPE_BODY).toUpperCase();
+        String scope      = prop.getProperty(PROP_SCOPE, SCOPE_FIELD).toUpperCase();
         String body       = toBodyString(resultMessage);
         Map<String, String> runtimeCtx = buildRuntimeContext(prop, request);