Set openWorldHint to false in UseCase java files and add empty pattern to tool-definition yaml files

dap-gateway/src/main/resources/static/admin/scaffold.html

@@ -1231,6 +1231,10 @@
           </table>
         </div>
         <button type="button" class="btn-action mt-2" onclick="addSubFieldEditorRow()">+ 하위 필드 추가</button>
+        <div class="mt-4">
+          <label class="form-label">JSON 미리보기</label>
+          <pre id="subFieldEditorPreview" class="mb-0 p-3 rounded" style="background:#09090b; border:1px solid #27272a; color:#e4e4e7; font-size:0.78rem; max-height:190px; overflow:auto;"></pre>
+        </div>
       </div>
       <div class="modal-footer">
         <button type="button" class="btn-secondary-action" data-bs-dismiss="modal">취소</button>
@@ -1793,6 +1797,7 @@
         if (!subFieldEditorModalInstance) {
             subFieldEditorModalInstance = new bootstrap.Modal(document.getElementById('subFieldEditorModal'));
         }
+        updateSubFieldEditorPreview();
         subFieldEditorModalInstance.show();
     }
 
@@ -1828,17 +1833,20 @@
         
         [n, t, det, d, p, e, req].forEach(ctrl => {
             const td = document.createElement('td'); td.appendChild(ctrl); row.appendChild(td);
+            ctrl.addEventListener('input', updateSubFieldEditorPreview);
+            ctrl.addEventListener('change', updateSubFieldEditorPreview);
         });
         const del = document.createElement('button');
         del.type = 'button'; del.className = 'btn-secondary-action'; del.textContent = 'X';
         del.style.padding = '0.1rem 0.4rem';
-        del.onclick = () => row.remove();
+        del.onclick = () => { row.remove(); updateSubFieldEditorPreview(); };
         const delTd = document.createElement('td'); delTd.appendChild(del); row.appendChild(delTd);
         document.getElementById('subFieldEditorBody').appendChild(row);
+        updateSubFieldEditorPreview();
     }
 
-    function applySubFieldEditor() {
-        const fields = [...document.querySelectorAll('#subFieldEditorBody tr')].map(row => {
+    function currentSubEditorFields() {
+        return [...document.querySelectorAll('#subFieldEditorBody tr')].map(row => {
             const type = row.querySelector('[data-field="type"]').value;
             const details = row.querySelector('[data-field="details"]').value.trim();
             return {
@@ -1852,6 +1860,15 @@
                 itemType: null, itemFields: []
             };
         }).filter(f => f.name);
+    }
+
+    function updateSubFieldEditorPreview() {
+        const preview = document.getElementById('subFieldEditorPreview');
+        if (preview) preview.textContent = JSON.stringify(currentSubEditorFields(), null, 2);
+    }
+
+    function applySubFieldEditor() {
+        const fields = currentSubEditorFields();
         currentSubFieldTargetInput.value = JSON.stringify(fields);
         currentSubFieldTargetInput.dispatchEvent(new Event('input'));
         currentSubFieldTargetInput.dispatchEvent(new Event('change'));