Phase 8: add the Reference App wiki walkthrough (06_reference_app)

- four pages walking the vet sample: overview, domain & API, pipelines &
  worker, spec-driven client admin
- mkdocs nav section, index + start-an-app cross links
- bundle now exposes the walkthrough as wiki_reference_app_* modules

standards/wiki/index.html

@@ -277,6 +277,28 @@
   
     
     
+      <li class="md-tabs__item">
+        <a href="06_reference_app/01_overview/" class="md-tabs__link">
+          
+  
+  
+    
+  
+  Reference App
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+  
+    
+    
       <li class="md-tabs__item">
         <a href="05_mcp_setup/" class="md-tabs__link">
           
@@ -533,6 +555,12 @@
       
         
       
+        
+      
+        
+      
+        
+      
     
     
     
@@ -556,7 +584,7 @@
   
   
   <span class="md-ellipsis">
-    MCP
+    Reference App
     
   </span>
   
@@ -566,6 +594,154 @@
         
         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
           <label class="md-nav__title" for="__nav_5">
+            <span class="md-nav__icon md-icon"></span>
+            Reference App
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="06_reference_app/01_overview/" class="md-nav__link">
+        
+  
+  
+  <span class="md-ellipsis">
+    Overview
+    
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="06_reference_app/02_domain_and_api/" class="md-nav__link">
+        
+  
+  
+  <span class="md-ellipsis">
+    Domain & API
+    
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="06_reference_app/03_pipelines_and_worker/" class="md-nav__link">
+        
+  
+  
+  <span class="md-ellipsis">
+    Pipelines & Worker
+    
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="06_reference_app/04_client_admin/" class="md-nav__link">
+        
+  
+  
+  <span class="md-ellipsis">
+    Client Admin
+    
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
+      
+        
+      
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+          
+        
+        <input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_6" >
+        
+          
+          <label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="0">
+            
+  
+  
+  <span class="md-ellipsis">
+    MCP
+    
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_6">
             <span class="md-nav__icon md-icon"></span>
             MCP
           </label>
@@ -712,6 +888,10 @@ Query <code>find_library</code> before writing any infrastructure.</p>
 <td>The entry point: gather the two axes, then build</td>
 </tr>
 <tr>
+<td><a href="06_reference_app/01_overview/">Reference App</a></td>
+<td>The runnable vet sample — server, pipelines, client</td>
+</tr>
+<tr>
 <td><a href="04_development/01_testing/">Testing &amp; Quality</a></td>
 <td>Test layout and acceptance gates</td>
 </tr>
@@ -738,7 +918,9 @@ Registry</a>).</p>
   <code>docs://nav</code>, <code>docs://modules/{module}</code>; call <code>find_library(capability)</code></li>
 <li><strong>Library registry</strong> — the catalog of internal libraries behind every app
   (<code>libraries.json</code>, served as <code>registry://libraries</code>)</li>
-<li><strong>Template</strong> — the runnable skeleton at <code>standards/src/templates/app/</code></li>
+<li><strong>Template</strong> — the runnable sample at <code>standards/src/templates/app/</code>
+  (server) and <code>standards/src/templates/client/</code> (React admin); walkthrough in
+  the <a href="06_reference_app/01_overview/">Reference App</a></li>
 <li><strong>Start a build</strong> — invoke the <code>start_app</code> prompt on the <code>standards</code> server,
   or read the <a href="03_start_an_app/">Start an App</a> guide</li>
 </ul>