Dashboard: Session message counts, workspace path, Agent persona

wwwroot/index.html

@@ -38,12 +38,14 @@
           <h2>Sessions</h2>
         </div>
         <div class="card-grid" id="sessionCards"></div>
+        <div class="card-grid" id="newSessionCard"></div>
       </section>
       <section>
         <div class="section-header">
           <h2>Agents</h2>
         </div>
         <div class="card-grid" id="agentCards"></div>
+        <div class="card-grid" id="newAgentCard"></div>
       </section>
     </div>
   </div>