🐛 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>

features/auth/user_authentication.feature

@@ -31,7 +31,6 @@ Feature: User Authentication
     And I should receive a valid JWT token
     And the token should contain admin claims
 
-  @flaky
   Scenario: User registration
     Given the server is running
     When I register a new user "newuser_" with password "newpass123"
@@ -46,7 +45,6 @@ Feature: User Authentication
     Then the password reset should be allowed
     And the user should be flagged for password reset
 
-  @flaky
   Scenario: User completes password reset
     Given the server is running
     And a user "resetuser" exists and is flagged for password reset
@@ -111,7 +109,6 @@ Feature: User Authentication
     Then the authentication should fail
     And the response should contain error "invalid_credentials"
 
-  @flaky
   Scenario: Multiple consecutive authentications
     Given the server is running
     And a user "multiuser" exists with password "testpass123"
@@ -132,7 +129,6 @@ Feature: User Authentication
     Then the token should be valid
     And it should contain the correct user ID
 
-  @flaky
   Scenario: Authentication with expired JWT token
     Given the server is running
     And a user "expireduser" exists with password "testpass123"

features/jwt/jwt_secret_rotation.feature

@@ -11,7 +11,6 @@ Feature: JWT Secret Rotation
     Then the authentication should be successful
     And I should receive a valid JWT token signed with the primary secret
 
-  @flaky
   Scenario: Token validation with multiple valid secrets
     Given the server is running with multiple JWT secrets
     And a user "tokenuser" exists with password "testpass123"
@@ -22,7 +21,6 @@ Feature: JWT Secret Rotation
     Then the token should be valid
     And it should contain the correct user ID
 
-  @flaky
   Scenario: Secret rotation - adding new secret while keeping old one valid
     Given the server is running with primary JWT secret
     And a user "rotateuser" exists with password "testpass123"
@@ -42,7 +40,6 @@ Feature: JWT Secret Rotation
     Then the authentication should fail
     And the response should contain error "invalid_token"
 
-  @flaky
   Scenario: Graceful secret rotation with user continuity
     Given the server is running with primary JWT secret
     And a user "gracefuluser" exists with password "testpass123"

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