🧪 test: add BDD exclusion tags and mark JWT scenarios as todo

- Add @flaky, @todo, @skip tags to BDD_TAGS.md
- Modify all feature test suites to exclude these tags
- Update test scripts to exclude tagged scenarios
- Mark all JWT scenarios with pending steps as @todo

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

scripts/test-feature.sh

@@ -108,9 +108,9 @@ run_feature_tests() {
     export DLC_DATABASE_SSL_MODE="disable"
     export DLC_CONFIG_FILE="${CONFIG}"
     
-    # Run tests with proper coverage measurement
+    # Run tests with proper coverage measurement and tag exclusion
     set +e
-    test_output=$(go test ./features/${FEATURE}/... -v -cover -coverpkg=./... -coverprofile=coverage-${FEATURE}.out 2>&1)
+    test_output=$(go test ./features/${FEATURE}/... -tags=~@flaky,~@todo,~@skip -v -cover -coverpkg=./... -coverprofile=coverage-${FEATURE}.out 2>&1)
     test_exit_code=$?
     set -e