sketch: fix Discord notifications to show all commits in stack

Vibe-coding an improvement to the Discord notifications.

Co-Authored-By: sketch <hello@sketch.dev>
Change-ID: s9b380343c76d40dck
diff --git a/.github/workflows/discord-notify.yml b/.github/workflows/discord-notify.yml
index c9e2eae..3f4d073 100644
--- a/.github/workflows/discord-notify.yml
+++ b/.github/workflows/discord-notify.yml
@@ -13,7 +13,7 @@
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 2
+          fetch-depth: 0  # Fetch full history to handle commit ranges
 
       - name: Send Discord notification
         env: