update version bump workflow

Author: harshitha-cstk

.github/workflows/check-version-bump.yml

@@ -1,5 +1,6 @@
 # Catches when developers forget to add a version bump for their changes.
-# Code changes (e.g. lib/) require package.json + CHANGELOG.md; test-only skip.
+# Code changes (lib/, webpack/, dist/) require package.json + CHANGELOG.md.
+# Skips for: test-only, docs, .github (workflows/config).
 name: Check Version Bump
 
 on:
@@ -27,15 +28,16 @@ jobs:
           echo "$FILES" | grep -qx 'package.json' && VERSION_FILES_CHANGED=true
           echo "$FILES" | grep -qx 'CHANGELOG.md' && VERSION_FILES_CHANGED=true
           echo "version_files_changed=$VERSION_FILES_CHANGED" >> $GITHUB_OUTPUT
+          # Only lib/, webpack/, dist/, package.json count as release-affecting; .github/ and test/ do not
           CODE_CHANGED=false
           echo "$FILES" | grep -qE '^lib/|^webpack/|^dist/' && CODE_CHANGED=true
           echo "$FILES" | grep -qx 'package.json' && CODE_CHANGED=true
           echo "code_changed=$CODE_CHANGED" >> $GITHUB_OUTPUT
 
-      - name: Skip when only test/docs/config changed
+      - name: Skip when only test/docs/.github changed
         if: steps.detect.outputs.code_changed != 'true'
         run: |
-          echo "No release-affecting files changed (e.g. only test/docs). Skipping version-bump check."
+          echo "No release-affecting files changed (e.g. only test/docs/.github). Skipping version-bump check."
           exit 0
 
       - name: Fail when version bump was missed
@@ -75,4 +77,13 @@ jobs:
             echo "::error::Version bump required: package.json version ($PKG_VERSION) equals latest tag ($LATEST_TAG). Please bump the version in package.json."
             exit 1
           fi
-          CHANGELOG_VERSION=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+).*/\1/p' CHANGELOG.md | head -1)
+          CHANGELOG_VERSION=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+).*/\1/p' CHANGELOG.md | head -1)
+          if [ -z "$CHANGELOG_VERSION" ]; then
+            echo "::error::Could not find a version entry in CHANGELOG.md (expected line like '## [v1.0.0](...)')."
+            exit 1
+          fi
+          if [ "$CHANGELOG_VERSION" != "$PKG_VERSION" ]; then
+            echo "::error::CHANGELOG version mismatch: CHANGELOG.md top version ($CHANGELOG_VERSION) does not match package.json version ($PKG_VERSION). Please add or update the CHANGELOG entry for $PKG_VERSION."
+            exit 1
+          fi
+          echo "Version bump check passed: package.json and CHANGELOG.md are at $PKG_VERSION (latest tag: $LATEST_TAG)."