Add disabled Gemini and GPT model options (coming soon) to all model selectors

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: JihaoXin

ark/webapp/static/app.html

@@ -775,6 +775,14 @@ <h2 style="margin:0" data-i18n="hero_title">Build your next paper with ARK</h2>
                 <input type="radio" name="model" value="gemini" />
                 <span class="model-chip">Gemini</span>
               </label>
+              <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon">
+                <input type="radio" name="model" value="gemini" disabled />
+                <span class="model-chip">Gemini</span>
+              </label>
+              <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon">
+                <input type="radio" name="model" value="gpt" disabled />
+                <span class="model-chip">GPT</span>
+              </label>
             </div>
           </div>
           <div style="display:flex;gap:16px;margin-top:12px">
@@ -967,6 +975,8 @@ <h3 data-i18n="continue_project">Continue Project</h3>
           <label class="model-option continue-model-admin" style="display:none"><input type="radio" name="continue-model" value="claude-opus-4-6" /><span class="model-chip">Opus 4.6</span></label>
           <label class="model-option continue-model-admin" style="display:none"><input type="radio" name="continue-model" value="claude-haiku-4-5" /><span class="model-chip">Haiku 4.5</span></label>
           <label class="model-option continue-model-admin" style="display:none"><input type="radio" name="continue-model" value="gemini" /><span class="model-chip">Gemini</span></label>
+          <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon"><input type="radio" name="continue-model" value="gemini" disabled /><span class="model-chip">Gemini</span></label>
+          <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon"><input type="radio" name="continue-model" value="gpt" disabled /><span class="model-chip">GPT</span></label>
         </div>
       </div>
     </div>
@@ -1015,6 +1025,8 @@ <h3>Restart Project</h3>
         <label class="model-option restart-model-admin" style="display:none"><input type="radio" name="restart-model" value="claude-opus-4-6" /><span class="model-chip">Opus 4.6</span></label>
         <label class="model-option restart-model-admin" style="display:none"><input type="radio" name="restart-model" value="claude-haiku-4-5" /><span class="model-chip">Haiku 4.5</span></label>
         <label class="model-option restart-model-admin" style="display:none"><input type="radio" name="restart-model" value="gemini" /><span class="model-chip">Gemini</span></label>
+        <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon"><input type="radio" name="restart-model" value="gemini" disabled /><span class="model-chip">Gemini</span></label>
+        <label class="model-option" style="opacity:.45;pointer-events:none" title="Coming soon"><input type="radio" name="restart-model" value="gpt" disabled /><span class="model-chip">GPT</span></label>
       </div>
     </div>
     <div class="tg-section" style="margin-top:12px">