feat: add creation time display to SuitableDownloadPdf component

- Included creation time in the footer of the PDF content for better context.
- Ensured consistent display of creation time in both main and table content sections.

src/components/pdf/SuitableDownloadPdf.tsx

@@ -82,6 +82,7 @@ export default function SuitableDownloadPdf() {
             <p>又、現場環境（働き、勾配、瓦桟木条件等）により本適合表と異なる適合結果となる場合が御座います。予めご了承下さい。</p>
             <p>屋根材以外の設置条件（垂木、野地板等の設置基準）も必ずご確認下さい。</p>
           </div>
+          <div className="pdf-intro-foot-date">{createTime}</div>
         </div>
         <div className="pdf-table-content">
           <div className="pdf-table-grid-wrap">
@@ -123,6 +124,7 @@ export default function SuitableDownloadPdf() {
               </div>
             ))}
           </div>
+          <div className="pdf-intro-foot-date mt10">{createTime}</div>
         </div>
       </div>
     </>