v0.1.5: editable stage history, auto-ghosting, new icon

- Edit an application's full stage history, with a date per step, so an
  application logged after the fact keeps its whole path
- `kareer history` to show or replace a stage history
- Mark applications with no response as Ghosted after 30 days,
  adjustable or off in Preferences
- New app icon, installed under the app ID so launchers and the Flatpak
  show it
- Fix the Add Application form filling empty fields with "undefined"
- Bump the version, add the 0.1.5 metainfo release, and update the
  manifest's pinned tag

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01BxDf7HqD1xPnsZP8wt3NTk

io.github.toservetheking.Kareer.metainfo.xml

@@ -65,6 +65,17 @@
   <content_rating type="oars-1.1"/>
 
   <releases>
+    <release version="0.1.5" date="2026-09-11">
+      <description>
+        <ul>
+          <li>Edit an application's full stage history, with a date for each step, so an application you log after the fact keeps its whole path (for example applied, interviewed, rejected)</li>
+          <li>Add a history command to show or replace a stage history from the command line</li>
+          <li>Mark applications with no response as Ghosted after 30 days, adjustable or off in Preferences</li>
+          <li>New app icon, now installed under the app ID so launchers and the Flatpak show it</li>
+          <li>Fix the Add Application form filling empty fields with the word "undefined"</li>
+        </ul>
+      </description>
+    </release>
     <release version="0.1.4" date="2026-09-11">
       <description>
         <ul>