Improve error handling for version extraction

Co-authored-by: npv2k1 <73846954+npv2k1@users.noreply.github.com>

Author: Copilot

.github/workflows/release.yml

@@ -66,9 +66,13 @@ jobs:
           if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
             echo "VERSION=${{ inputs.version }}" >> $GITHUB_OUTPUT
           elif [ "${{ github.ref }}" == "refs/heads/main" ]; then
-            VERSION="v$(node -p "require('./package.json').version" 2>/dev/null || echo "0.0.0")"
-            if [ "$VERSION" = "vundefined" ] || [ "$VERSION" = "v" ]; then
-              echo "Error: Unable to extract version from package.json"
+            if [ ! -f package.json ]; then
+              echo "Error: package.json not found"
+              exit 1
+            fi
+            VERSION="v$(node -p "require('./package.json').version" 2>/dev/null)"
+            if [ -z "$VERSION" ] || [ "$VERSION" = "v" ] || [ "$VERSION" = "vundefined" ] || [ "$VERSION" = "vnull" ]; then
+              echo "Error: Unable to extract valid version from package.json"
               exit 1
             fi
             echo "VERSION=$VERSION" >> $GITHUB_OUTPUT