fix: rename Linux deb package to include linux prefix

Rename Lumis_0.3.0_amd64.deb to Lumis_0.3.0_linux_amd64.deb
for consistency with macOS naming convention.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

.github/workflows/build.yml

@@ -404,7 +404,11 @@ jobs:
       - name: Find deb file
         id: deb
         working-directory: ./lumis/apps/web/src-tauri/target/release/bundle/deb
-        run: echo "path=$(ls *.deb)" >> $GITHUB_OUTPUT
+        run: |
+          ORIGINAL=$(ls *.deb)
+          NEW=$(echo "$ORIGINAL" | sed 's/Lumis_\(.*\)/Lumis_\1_linux/')
+          mv "$ORIGINAL" "$NEW"
+          echo "path=$NEW" >> $GITHUB_OUTPUT
 
       - name: Upload Linux deb
         uses: actions/upload-artifact@v4