Add debugging for Sparkle public key extraction

- Add debug message before public key extraction
- Add verification for public key file creation
- Add detailed error output if public key extraction fails
- Show contents of keys directory and private key file size
- Help diagnose why public key extraction is failing
- Ensure proper Sparkle key generation workflow debugging

Author: devopsmariocom

.github/workflows/build-and-release.yml

@@ -217,8 +217,20 @@ jobs:
           echo "✅ Private key generated successfully"
           
           # Extract public key from private key
+          echo "🔑 Extracting public key from private key..."
           ./bin/generate_keys -x keys/ed25519_private_key.pem > keys/ed25519_public_key.pem
           
+          # Verify public key was created
+          if [ ! -f "keys/ed25519_public_key.pem" ] || [ ! -s "keys/ed25519_public_key.pem" ]; then
+            echo "❌ Failed to extract public key"
+            echo "📁 Contents of keys directory:"
+            ls -la keys/
+            echo "📄 Private key file size:"
+            ls -la keys/ed25519_private_key.pem
+            exit 1
+          fi
+          
+          echo "✅ Public key extracted successfully"
           PUBLIC_KEY=$(grep -v "BEGIN\|END" keys/ed25519_public_key.pem | tr -d '\n')
           echo "Public key: $PUBLIC_KEY"