Ensure all comment-triggered workflows return meaningful completion comments

.github/workflows/cmake-build.yaml

@@ -282,3 +282,28 @@ jobs:
     steps:
     - name: No relevant C++ or CMake changes detected
       run: echo "::notice::No relevant C++ or CMake changes detected; build skipped."
+
+  build-complete:
+    needs: [pre-check, build]
+    if: >
+      always() &&
+      github.event_name == 'issue_comment' &&
+      needs.pre-check.result == 'success'
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+
+    steps:
+      - name: Comment on build completion
+        uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1
+        with:
+          message: |
+            Build and test workflow completed.
+
+            **Result:** ${{ needs.build.result == 'success' && '✅ All builds and tests passed.' 
+              || needs.build.result == 'failure' && '❌ Some builds or tests failed.' 
+              || needs.build.result == 'cancelled' && '⚠️ Build was cancelled before completion.' 
+              || needs.build.result == 'skipped' && 'ℹ️ Build job was skipped.' 
+              || format('ℹ️ Build job completed with status: {0}.', needs.build.result) }}
+
+            See the [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for detailed results.

.github/workflows/markdown-fix.yaml

@@ -76,14 +76,19 @@ jobs:
           repository: ${{ needs.pre-check.outputs.repo }}
           token: ${{ secrets.WORKFLOW_PAT }}
 
-      - name: Run markdownlint
-        uses: DavidAnson/markdownlint-cli2-action@07035fd053f7be764496c0f8d8f9f41f98305101 # v22.0.0
+      - name: Set up Node.js
+        uses: actions/setup-node@42a6b3698c7ed2d0a0c63ba202543c60838be1e7 # v6.0.0
         with:
-          globs: |
-            ${{ env.local_checkout_path }}/**/*.md
-            !${{ env.local_checkout_path }}/**/CHANGELOG.md
-          fix: true
-        continue-on-error: true
+          node-version: '20'
+
+      - name: Install markdownlint-cli2
+        run: npm install -g markdownlint-cli2
+
+      - name: Run markdownlint-cli2 fix
+        working-directory: ${{ env.local_checkout_path }}
+        run: |
+          echo "Fixing Markdown format with markdownlint-cli2..."
+          markdownlint-cli2 --fix "**/*.md" "!**/CHANGELOG.md" || true
 
       - name: Handle fix commit
         uses: Framework-R-D/phlex/.github/actions/handle-fix-commit@main