Add local test files to gitignore

Ignore local test documentation and temporary files:
- Unit test documentation (README.md, QUICK_START.md, etc.)
- Test reports (test-report.md, test-report.json)
- Build artifacts (e2e binary)
- PID files and coverage reports

These files are generated locally during development and testing
and should not be committed to the repository.

Signed-off-by: Senan Zedan <[email protected]>

Author: szedan-rh

.gitignore

@@ -158,3 +158,16 @@ dashboard/frontend/index.html.old
 
 # Kind cluster configuration
 tools/kind/kind-config.yaml
+
+# Local test documentation (not part of PRs)
+e2e-tests/testcases/README.md
+e2e-tests/testcases/QUICK_START.md
+e2e-tests/testcases/IMPLEMENTATION_SUMMARY.md
+e2e-tests/testcases/PR_SPLIT_PLAN.md
+e2e-tests/testcases/PR_SUMMARY.md
+e2e-tests/testcases/*.skip
+e2e-tests/testcases/coverage-summary.txt
+test-report.md
+test-report.json
+e2e/e2e
+e2e-tests/llm_katan_pids.txt