docs(changelog): add planning mode and AI chat v2 updates

Document planning/code mode, Implement button, and chat panel v2
improvements alongside streaming, UI, and Git Commit fixes.

src/pages/changelog.astro

@@ -40,6 +40,13 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 Enhancements
               </h3>
               <ul class="changes-list">
+                <li><strong>Zaguán Coder Daemon.</strong> Implemented a new GPT skill inspired by <a href="https://github.com/cyxzdev/Uncodixfy" target="_blank" rel="noopener">Uncodixfy</a> and refined the other design skill.</li>
+                <li><strong>Zaguán Coder Daemon.</strong> Fixed streaming issues related to gpt-5.4.</li>
+                <li><strong>AI Chat Panel v2.</strong> A complete rewrite of the AI Chat panel. v2 is now a lot more performant and responsive.</li>
+                <li><strong>Chat Panel Update.</strong> Updated the Chat panel and took a lot of inspiration from <a href="https://github.com/pingdotgg/t3code" target="_blank" rel="noopener">T3 Code</a>.</li>
+                <li><strong>Git Commit Text Area.</strong> Made the Git commit text area bigger and dynamic.</li>
+                <li><strong>AI Chat Panel.</strong> Toned down the font color to make it easier to read.</li>
+                <li><strong>AI Chat Panel.</strong> Made completed tool calls fade a little to make it easier to separate.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Added a <code>tool_search</code> tool based on the Anthropic documentation to help reduce initial token usage.</li>
               </ul>
             </div>
@@ -50,6 +57,8 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 New Features
               </h3>
               <ul class="changes-list">
+                <li><strong>Code and Planning Mode.</strong> You can now switch between Code and Planning mode. Added a special Planning skill in Zaguán Coder Daemon to go along with this new feature.</li>
+                <li><strong>Implement Button.</strong> Implemented an "Implement" button when in Planning mode. Clicking this switches to Code mode and begins the work.</li>
                 <li><strong>Themes.</strong> Added theme support with two themes: the original dark theme and a new Blade Coder theme.</li>
               </ul>
             </div>
@@ -60,6 +69,13 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 Bug Fixes
               </h3>
               <ul class="changes-list">
+                <li><strong>Streaming Logic.</strong> Fixed a bug in the streaming logic that would sometimes garble the responses from specific models.</li>
+                <li><strong>GPT-5.4 Streaming.</strong> Fixed the streaming issue when using gpt-5.4 that resulted in garbled responses.</li>
+                <li><strong>Cancelled Tool Calls.</strong> Fixed an issue where a cancelled run_command tool call would end up below the response from the model.</li>
+                <li><strong>Chat UI.</strong> Removed noisy elements from the chat and tightened up some of them as well. Much nicer view.</li>
+                <li><strong>Git Commit Generate.</strong> Fixed a bug in the Git Commit Generate path that would sometimes fail for certain models.</li>
+                <li><strong>Blade Terminal Rendering.</strong> Rewired the logic to use the Blade Terminal again and hopefully fixed the rendering bugs.</li>
+                <li><strong>AI Chat v2 Design.</strong> Made minor tweaks to the AI chat v2 design.</li>
                 <li><strong>Zaguán Coder Daemon.</strong> Fixed the Gemini continuation thinking bug.</li>
               </ul>
             </div>