chore(release): update appcast for 0.2.3

Tool: Codex

Model: gpt-5

Why: Publish signed Sparkle appcast for 0.2.3

Author: jazzyalex

docs/appcast.xml

@@ -4,6 +4,29 @@
         <title>Stargazer Bar Updates</title>
         <link>https://github.com/jazzyalex/stargazer-bar</link>
         <description>Stargazer Bar release feed.</description>
+        <item>
+            <title>0.2.3</title>
+            <pubDate>Sat, 13 Jun 2026 15:03:48 -0700</pubDate>
+            <sparkle:version>7</sparkle:version>
+            <sparkle:shortVersionString>0.2.3</sparkle:shortVersionString>
+            <sparkle:minimumSystemVersion>13.0</sparkle:minimumSystemVersion>
+            <sparkle:hardwareRequirements>arm64</sparkle:hardwareRequirements>
+            <description><![CDATA[<h2>What's New in 0.2.3</h2>
+<h3>Features</h3>
+<ul>
+<li>Added a one-time growth prompt after a tracked repo gains its first detected star or at least 20 release downloads in one refresh, with actions to star Stargazer Bar, defer, or stop asking.</li>
+<li>Added per-repo milestone sharing from the menu: copy star/download text, copy a generated square milestone image, or open an X compose window with the image copied to the pasteboard.</li>
+</ul>
+<h3>Improvements</h3>
+<ul>
+<li>Added subtle About/README copy explaining that GitHub stars help other maintainers discover the app.</li>
+<li>Added the GitHub star CTA to Sparkle and GitHub release notes.</li>
+</ul>
+<p>If Stargazer Bar helps, please <a href="https://github.com/jazzyalex/stargazer-bar">star it on GitHub</a> so other maintainers can find it.</p>
+<p>Full release notes: <a href="https://github.com/jazzyalex/stargazer-bar/releases/tag/v0.2.3">https://github.com/jazzyalex/stargazer-bar/releases/tag/v0.2.3</a></p>
+]]></description>
+            <enclosure url="https://github.com/jazzyalex/stargazer-bar/releases/download/v0.2.3/Stargazer-Bar-0.2.3.zip" length="3372333" type="application/octet-stream" sparkle:edSignature="Sl7Q1y/Q2xrM5AULg/6F+7NW4QMto7DrqF0NEBs/AJTuBY0s74wwcKbRhT8voJdqJK6Xat4/3MvWGeUxAirdDQ=="/>
+        </item>
         <item>
             <title>0.2.2</title>
             <pubDate>Thu, 04 Jun 2026 20:35:21 -0700</pubDate>
@@ -37,27 +60,5 @@
 ]]></description>
             <enclosure url="https://github.com/jazzyalex/stargazer-bar/releases/download/v0.2.1/Stargazer-Bar-0.2.1.zip" length="3249909" type="application/octet-stream" sparkle:edSignature="2EwxZHwcp06Cd+bYjPtkaCD8X6ihbEpkgj41XklhDG9grCkKvMItBfojpfoEAMKID3yIo7J+sJGFi7Wb9GJ1BA=="/>
         </item>
-        <item>
-            <title>0.2</title>
-            <pubDate>Fri, 29 May 2026 10:17:09 -0700</pubDate>
-            <sparkle:version>4</sparkle:version>
-            <sparkle:shortVersionString>0.2</sparkle:shortVersionString>
-            <sparkle:minimumSystemVersion>13.0</sparkle:minimumSystemVersion>
-            <sparkle:hardwareRequirements>arm64</sparkle:hardwareRequirements>
-            <description><![CDATA[<h2>What's New in 0.2</h2>
-<h3>Features</h3>
-<ul>
-<li>Added support for tracking multiple public repositories from the menu bar.</li>
-<li>Added per-repository star sounds for distinct update cues.</li>
-</ul>
-<h3>Improvements</h3>
-<ul>
-<li>Simplified the status menu refresh action to a single **Check Now** item.</li>
-<li>Refreshed public screenshots and copy for the Stargazer Bar rename and multi-repo workflow.</li>
-</ul>
-<p>Full release notes: <a href="https://github.com/jazzyalex/stargazer-bar/releases/tag/v0.2">https://github.com/jazzyalex/stargazer-bar/releases/tag/v0.2</a></p>
-]]></description>
-            <enclosure url="https://github.com/jazzyalex/stargazer-bar/releases/download/v0.2/Stargazer-Bar-0.2.zip" length="3249862" type="application/octet-stream" sparkle:edSignature="7r8SHoPOEGzvnzcLoz8R45hATX85qHjINt4WhGXOb6BpxgBE9QJk/zphG/Lw3f9L3/A/jWRcaJl4a3WHFKi/CA=="/>
-        </item>
     </channel>
 </rss>