Added runtime test

Author: BuddySirJava

.github/workflows/macos-dmg.yml

@@ -232,6 +232,19 @@ jobs:
           echo 'self-contained app:' || true
           ls -R 'dist/SSH Studio.app/Contents' || true
 
+      - name: Smoke test self-contained app
+        run: |
+          set -euxo pipefail
+          LAUNCHER='dist/SSH Studio.app/Contents/MacOS/ssh-studio'
+          test -x "$LAUNCHER"
+          # CLI help should exit quickly without requiring a GUI session
+          "$LAUNCHER" --help || true
+          # Also try launching briefly, then kill
+          "$LAUNCHER" &
+          sleep 2 || true
+          pkill -f "SSH Studio" || true
+          pkill -f "ssh-studio" || true
+
       - name: Create DMG
         run: |
           set -euxo pipefail
@@ -243,6 +256,24 @@ jobs:
           ln -s /Applications dmgroot/Applications
           hdiutil create -volname "SSH Studio" -srcfolder dmgroot -ov -fs HFS+ "ssh-studio-${VER}-${ARCH}.dmg"
 
+      - name: Mount DMG and smoke test app
+        run: |
+          set -euxo pipefail
+          DMG="$(ls -1 ssh-studio-*.dmg | head -n1)"
+          MNT="$(mktemp -d /tmp/sshstudio.XXXX)"
+          hdiutil attach "$DMG" -mountpoint "$MNT" -nobrowse -quiet
+          ls -la "$MNT"
+          LAUNCHER="$MNT/SSH Studio.app/Contents/MacOS/ssh-studio"
+          test -x "$LAUNCHER"
+          # CLI help should execute; ignore non-zero in case GTK prints warnings
+          "$LAUNCHER" --help || true
+          # Briefly launch then terminate
+          "$LAUNCHER" &
+          sleep 2 || true
+          pkill -f "SSH Studio" || true
+          pkill -f "ssh-studio" || true
+          hdiutil detach "$MNT" -quiet || true
+
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with: