docs: add v1.2.1 and CLI v0.1.2 changelog entries

- Add v1.2.1 release with explore history URL hydration fix
- Update docs changelog with v1.2.1 as latest

Author: mr-karan

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.2.1] - 2026-01-21
+
+### Fixed
+- **Explore history URL hydration** — Fixed issue where browser history navigation could fail to restore query state correctly.
+
 ## [CLI v0.1.2] - 2026-01-21
 
 ### Added
@@ -304,7 +309,8 @@ Initial public release.
 - Embedded web UI
 - Prometheus metrics endpoint
 
-[Unreleased]: https://github.com/mr-karan/logchef/compare/v1.2.0...HEAD
+[Unreleased]: https://github.com/mr-karan/logchef/compare/v1.2.1...HEAD
+[1.2.1]: https://github.com/mr-karan/logchef/compare/v1.2.0...v1.2.1
 [1.2.0]: https://github.com/mr-karan/logchef/compare/v1.1.0...v1.2.0
 [1.1.0]: https://github.com/mr-karan/logchef/compare/v1.0.0...v1.1.0
 [1.0.0]: https://github.com/mr-karan/logchef/compare/v0.6.0...v1.0.0

docs/src/pages/changelog.astro

@@ -119,12 +119,31 @@ import BaseLayout from '../layouts/BaseLayout.astro';
       </div>
     </article>
 
+    <!-- v1.2.1 -->
+    <article class="version">
+      <div class="version-header">
+        <span class="version-tag">v1.2.1</span>
+        <span class="version-date">Jan 21, 2026</span>
+        <span class="version-badge">Latest</span>
+        <a href="https://github.com/mr-karan/logchef/releases/tag/v1.2.1" class="version-link" target="_blank">Release notes →</a>
+      </div>
+
+      <div class="change-section">
+        <div class="change-type fixed">
+          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round"><path d="M20 6L9 17l-5-5"/></svg>
+          Fixed
+        </div>
+        <ul class="change-list">
+          <li><strong>Explore history URL hydration</strong> — Fixed issue where browser history navigation could fail to restore query state</li>
+        </ul>
+      </div>
+    </article>
+
     <!-- v1.2.0 -->
     <article class="version">
       <div class="version-header">
         <span class="version-tag">v1.2.0</span>
         <span class="version-date">Jan 21, 2026</span>
-        <span class="version-badge">Latest</span>
         <a href="https://github.com/mr-karan/logchef/releases/tag/v1.2.0" class="version-link" target="_blank">Release notes →</a>
       </div>