docs(changelog): add bug fix entries and remove screenshot section

src/pages/changelog.astro

@@ -57,8 +57,21 @@ import BaseLayout from '../layouts/BaseLayout.astro';
                 <li><strong>Ollama Cloud support.</strong> Added support for Ollama Cloud. Requires an account at ollama.com.</li>
               </ul>
             </div>
+            <div class="changes-section">
+              <h3 class="changes-title">
+                <span class="changes-icon">🐛</span>
+                Bug Fixes
               </h3>
               <ul class="changes-list">
+                <li><strong>CodeMirror "Ranges must be added sorted" crash.</strong> Three extensions could add decorations in unsorted order causing CodeMirror to crash:
+                  <ul style="margin-top: 0.5rem; margin-left: 1rem; list-style: disc;">
+                    <li><code>diffDecorations.ts</code> — Sort was <code>(from, to)</code> but CodeMirror requires <code>(from, startSide, to)</code>. Fixed by tracking <code>startSide</code> on each decoration and sorting by <code>(from, startSide, to)</code>.</li>
+                    <li><code>rainbowBrackets.ts</code> — Visible ranges expanded to line boundaries could overlap, causing duplicate/unsorted bracket decorations. Fixed by tracking <code>maxProcessed</code> to skip already-processed positions and sorting all brackets before adding.</li>
+                    <li><code>indentGuides.ts</code> — Same overlapping visible ranges risk. Fixed with <code>maxProcessed</code> guard.</li>
+                  </ul>
+                </li>
+                <li><strong>Chat becomes inert after UI reload.</strong> After a UI reload (e.g. crash recovery), the frontend's <code>loading</code> state was <code>false</code> even though the backend was still streaming. Added <code>get_chat_status</code> Tauri command that returns <code>true</code> if the backend is streaming. Frontend <code>init()</code> now calls <code>get_chat_status</code> and restores <code>loading = true</code> if the backend is still active. <em>Files: <code>chat.rs</code>, <code>lib.rs</code>, <code>useChat.ts</code></em></li>
+                <li><strong>Can't scroll to bottom after crash/reload.</strong> After reload, the scroll container starts at the top. The <code>isUserAtBottomRef</code> quickly becomes <code>false</code> from the scroll handler, so streaming auto-scroll stops working. Added an initial scroll-to-bottom effect that fires once when messages first load, ensuring the user sees the latest content and <code>isUserAtBottomRef</code> stays <code>true</code> for streaming auto-scroll. <em>Files: <code>ChatPanel.tsx</code></em></li>
                 <li>Fixed the Blade Terminal echo bug when the model is using the <code>run_command</code> tool call.</li>
                 <li>Fixed <code>run_command</code> tool calls in AI Chat appearing above already run (or failed) commands instead of below them.</li>
                 <li>Fixed bug in the Ollama and Ollama Cloud implementation that resulted in errors.</li>