Add Terraform CI job summary

Author: rusets

.github/workflows/terraform-ci.yml

@@ -68,6 +68,47 @@ jobs:
           config_file: .checkov.yml
           quiet: true
 
+      - name: Publish Terraform CI summary
+        if: ${{ success() }}
+        run: |
+          cat << EOF >> "$GITHUB_STEP_SUMMARY"
+          # Terraform CI Summary
+
+          - Terraform version (matrix): \`${{ matrix.terraform_version }}\`
+          - Format check: passed
+          - Init (no backend): passed
+          - Validate: passed
+          - TFLint: passed
+          - Security: tfsec + Checkov passed
+
+          All Terraform checks finished successfully for this run.
+          EOF
+
+      - name: Comment on PR with Terraform CI result
+        if: always()
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const conclusion = '${{ job.status }}';
+            const symbols = { success: '✅', failure: '❌', cancelled: '⚪️' };
+            const symbol = symbols[conclusion] || 'ℹ️';
+            const body =
+              `${symbol} Terraform CI finished with status: **${conclusion}**\n\n` +
+              `Terraform versions tested: 1.6.6, 1.8.5, 1.9.5.\n` +
+              `See detailed results in the "Checks" tab.`;
+            const pr = context.payload.pull_request;
+            if (!pr) {
+              core.info('No pull_request context, skipping comment.');
+            } else {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: pr.number,
+                body
+              });
+            }
+
       - name: Comment on PR with Terraform CI result
         if: always()
         uses: actions/github-script@v7