폼전송 기능 수정

src/app/api/export/route.ts

@@ -165,6 +165,7 @@ export const buildStaticHtml = (blocks: Block[], projectConfig?: ProjectConfig):
   // - formBlockIdToFormDomId: key = FormBlock id, value = <form> 요소의 DOM id
   const fieldIdToFormId = new Map<string, string>();
   const formBlockIdToFormDomId = new Map<string, string>();
+  const submitButtonIdToFormDomId = new Map<string, string>();
   const requiredFieldIdSet = new Set<string>();
   // 테스트 및 기존 Export HTML 과의 호환성을 위해 FormBlock 의 DOM id 규칙을 다음과 같이 정의한다.
   // - block.id 가 "form_숫자" 패턴이면 기존과 동일하게 formDomId = `form_${block.id}` (예: form_1 → form_form_1)
@@ -190,6 +191,11 @@ export const buildStaticHtml = (blocks: Block[], projectConfig?: ProjectConfig):
       }
     }
 
+    const submitButtonIdRaw = props.submitButtonId;
+    if (typeof submitButtonIdRaw === "string" && submitButtonIdRaw.trim() !== "") {
+      submitButtonIdToFormDomId.set(submitButtonIdRaw, formDomId);
+    }
+
     const requiredFieldIds = Array.isArray(props.requiredFieldIds) ? props.requiredFieldIds : [];
     for (const fieldId of requiredFieldIds) {
       if (typeof fieldId === "string" && fieldId.trim() !== "") {
@@ -284,6 +290,13 @@ export const buildStaticHtml = (blocks: Block[], projectConfig?: ProjectConfig):
         innerHtml = `<img src="${imgSrc}" alt="${imgAlt}" />${innerHtml}`;
       }
 
+      const submitFormId = submitButtonIdToFormDomId.get(block.id);
+      if (submitFormId) {
+        return `<div class="${tokens.alignClass}"><button type="submit" form="${escapeAttr(
+          submitFormId,
+        )}" class="${btnClasses}"${styleAttr}>${innerHtml}</button></div>`;
+      }
+
       return `<div class="${tokens.alignClass}"><a href="${escapeAttr(
         href,
       )}" class="${btnClasses}"${styleAttr}>${innerHtml}</a></div>`;