🐛 fix: resolve port conflicts and state pollution in test validation

- Remove FIXED_TEST_PORT and BDD_SCHEMA_ISOLATION from validate-test-suite.sh
- Change go test ./features/... to go test ./features to avoid duplicate runs
- Update recommendations to prioritize investigation over flaky tagging
- Remove @flaky tags now that root causes are fixed

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

scripts/validate-test-suite.sh

@@ -81,8 +81,6 @@ for (( run=1; run<=$RUN_COUNT; run++ )); do
     go clean -testcache > /dev/null 2>&1
     
     # Set environment variables for consistent BDD test behavior
-    export FIXED_TEST_PORT=true
-    export BDD_SCHEMA_ISOLATION=true
     export DLC_DATABASE_HOST=localhost
     export DLC_DATABASE_PORT=5432
     export DLC_DATABASE_USER=postgres
@@ -90,7 +88,7 @@ for (( run=1; run<=$RUN_COUNT; run++ )); do
     export DLC_DATABASE_NAME=dance_lessons_coach_test
     
     set +e  # Temporarily disable exit on error
-    BDD_OUTPUT=$(go test ./features/... -v 2>&1)
+    BDD_OUTPUT=$(go test ./features -v 2>&1)
     BDD_EXIT_CODE=$?
     set -e  # Re-enable exit on error
     
@@ -187,10 +185,10 @@ else
     
     echo
     echo "Recommendations:"
-    echo "  1. Mark flaky BDD tests with @flaky tag"
-    echo "  2. Investigate unit test failures first (faster to fix)"
-    echo "  3. Check for race conditions in failing tests"
-    echo "  4. Run with FIXED_TEST_PORT=true for debugging"
+    echo "  1. Investigate unit test failures first (faster to fix)"
+    echo "  2. Check for race conditions in failing tests"
+    echo "  3. Review test dependencies and isolation (schema/database isolation)"
+    echo "  4. Run individual failing tests with: FIXED_TEST_PORT=true go test ./features -v -run TestBDD/Name"
     echo "  5. Use ./scripts/run-bdd-tests.sh list-tags to see available tags"
     
     exit 1