feat: Integrate Staticcheck Pre-Commit Hook and Update QA Report

- Updated current specification to reflect the integration of Staticcheck into pre-commit hooks.
- Added problem statement, success criteria, and implementation plan for Staticcheck integration.
- Enhanced QA validation report to confirm successful implementation of Staticcheck pre-commit blocking.
- Created new Playwright configuration and example test cases for frontend testing.
- Updated package.json and package-lock.json to include Playwright and related dependencies.
- Archived previous QA report for CI workflow documentation updates.

.gitignore

@@ -246,3 +246,10 @@ codeql-linux64.zip
 backend/main
 **.out
 docs/plans/supply_chain_security_implementation.md.backup
+
+# Playwright
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/
+/playwright/.auth/