fix: rewrite JavaScript template literal to avoid syntax errors

- Replace template literal with array.join() approach for comment body
- Eliminates potential encoding issues with template literal backticks
- Improves code readability with explicit line array
- Ensures cross-platform JavaScript compatibility in GitHub Actions

This provides a more robust solution to the 'Invalid or unexpected token'
SyntaxError by avoiding problematic template literal syntax entirely.

.github/workflows/ci.yml

@@ -155,21 +155,26 @@ jobs:
               repo: context.repo.repo,
             });
             
-            const botComment = comments.find(comment => comment.user.type === 'Bot' && comment.body.includes('CI Pipeline Status'));
+            const botComment = comments.find(comment => 
+              comment.user.type === 'Bot' && 
+              comment.body.includes('CI Pipeline Status')
+            );
             
-            const commentBody = \`## CI Pipeline Status
-            
-            **All checks passed!** :white_check_mark:
-            
-            **Completed Checks:**
-            - :white_check_mark: Database migration tests (PostgreSQL & SQLite)
-            - :white_check_mark: Docker build and startup test
-            - :white_check_mark: Security vulnerability scan
-            
-            **Ready for review and merge** :rocket:
-            
-            ---
-            *This comment was automatically generated by the CI pipeline.*\`;
+            const commentBody = [
+              '## CI Pipeline Status',
+              '',
+              '**All checks passed!** :white_check_mark:',
+              '',
+              '**Completed Checks:**',
+              '- :white_check_mark: Database migration tests (PostgreSQL & SQLite)',
+              '- :white_check_mark: Docker build and startup test', 
+              '- :white_check_mark: Security vulnerability scan',
+              '',
+              '**Ready for review and merge** :rocket:',
+              '',
+              '---',
+              '*This comment was automatically generated by the CI pipeline.*'
+            ].join('\n');
             
             if (botComment) {
               await github.rest.issues.updateComment({