Add client apply flow and asset uploads

installer/index.html

@@ -17,7 +17,8 @@
         <li data-step="4">다운로드 및 설치</li>
         <li data-step="5">서버 설정</li>
         <li data-step="6">포트포워딩 설정</li>
-        <li data-step="7">완료</li>
+        <li data-step="7">클라이언트 적용</li>
+        <li data-step="8">완료</li>
       </ol>
     </aside>
 
@@ -115,6 +116,19 @@
 
       <section class="panel" data-panel="7">
         <p class="eyebrow">STEP 7</p>
+        <h2>클라이언트 적용</h2>
+        <p class="infoHint">런처 프로필, 로더 설치, 리소스팩, 쉐이더를 한 번에 적용합니다.</p>
+        <div class="buttonRow">
+          <button id="applyClientButton" class="primary">클라이언트 적용</button>
+        </div>
+        <div id="clientApplyStatus" class="infoBox"></div>
+        <div class="buttonRow between">
+          <button data-back="6">이전</button>
+        </div>
+      </section>
+
+      <section class="panel" data-panel="8">
+        <p class="eyebrow">STEP 8</p>
         <h2>완료</h2>
         <label class="toggleRow">
           <input type="checkbox" id="createShortcutToggle" checked />