installer-rp: site-configured outputPackName for built zip

Adds a new "생성되는 리소스팩 이름" admin field saved to the pack
manifest and consumed by the rp installer when naming the final zip.
Empty value falls back to <packKey>_musicquiz; Windows-invalid chars
are sanitized to '_'. Bumps version 0.1.1 → 0.2.0 (new feature).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

views/op/editor.ejs

@@ -98,6 +98,11 @@
           <input name="resourcepackPath" value="<%= pack.resourcepackPath %>" placeholder="my-pack.zip" pattern=".*\.zip|" />
           <small class="muted"><%= t('editor.resourcepackHint') %></small>
         </label>
+        <label class="fullSpan">
+          <span><%= t('editor.outputPackName') %></span>
+          <input name="outputPackName" value="<%= pack.outputPackName %>" placeholder="<%= t('editor.outputPackNamePlaceholder') %>" />
+          <small class="muted"><%= t('editor.outputPackNameHint') %></small>
+        </label>
       </div>
 
       <button class="primaryButton" type="submit"><%= t('common.save') %></button>