docs(changelog): add System Prompt Builder rewrite and model fixes entries

src/pages/changelog.astro

@@ -60,6 +60,7 @@ import BaseLayout from '../layouts/BaseLayout.astro';
               <ul class="changes-list">
                 <li><strong>Editor.</strong> Fixed a bug in the Editor that would result in the document scrolling to the top when a model edited the active document.</li>
                 <li><strong>Window Resize.</strong> Fixed a bug that made it impossible to resize the application by dragging the window borders.</li>
+                <li><strong>AI Chat.</strong> Fixed a conflict between the Latest pill and the scroll function that resulted in flickering when scrolling with a mouse.</li>
               </ul>
             </div>
 
@@ -71,6 +72,7 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 Enhancements
               </h3>
               <ul class="changes-list">
+                <li><strong>System Prompt Builder.</strong> A complete rewrite of the System Prompt Builder. Reduced initial token usage, easier maintenance, more control.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Added full support for versioned Full Context.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Updated the system prompt and logic for Deepseek V4 Pro/Flash to make it more reliable and to take action quicker.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Properly wired up the new Fast Context logic and added instructions in the prompts.</li>
@@ -91,9 +93,13 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 <li><strong>Zaguán Coder Daemon.</strong> Added Xiaomi MiMo to tool call retry logic.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Fixed bugs that prevented Kimi K2.6 from properly displaying its reasoning.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Fixed system prompts and logic so that models get to work faster instead of fetching content forever.</li>
-                <li><strong>Zaguán Coder Daemon.</strong> Disabled <a href="https://docs.cohere.com/docs/command-a-plus" target="_blank" rel="noopener">Cohere Command A+</a> for now due to issues that have been impossible to solve.</li>
-                <li><strong>Zaguán Coder Daemon.</strong> Disabled Inception Mercury 2 for now due to its smaller context window of 128k.</li>
+                <li><strong>Cohere Command A+.</strong> Fixed bugs that prevented <a href="https://docs.cohere.com/docs/command-a-plus" target="_blank" rel="noopener">Cohere Command A+</a> from working. The model is now generally available.</li>
+                <li><strong>Inception Mercury 2.</strong> Fixed bugs that prevented Inception Mercury 2 from working. The model is now generally available.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Disabled Mistral Small 4 for now due to it making too many mistakes during testing.</li>
+                <li><strong>Zaguán Coder Daemon.</strong> Fixed bugs that prevented reasoning from appearing correctly for Qwen3.7-Max.</li>
+                <li><strong>Zaguán Coder Daemon.</strong> Fixed bugs that prevented reasoning from appearing correctly for GLM-5.1.</li>
+                <li><strong>Zaguán Coder Daemon.</strong> Fixed bugs that prevented reasoning from appearing correctly for Kimi K2.7.</li>
+                <li><strong>Zaguán Coder Daemon.</strong> Fixed bugs in the Responses logic that prevented reasoning from appearing correctly.</li>
               </ul>
             </div>
           </div>