🧪 test: add JWT secret rotation BDD scenarios and step implementations (#12)

✨ merge: implement JWT secret rotation with BDD scenario isolation

- Implement JWT secret rotation mechanism (closes #8)
- Add per-scenario state isolation for BDD tests (closes #14)
- Validate password reset workflow via BDD tests (closes #7)
- Fix port conflicts in test validation
- Add state tracer for debugging test execution
- Document BDD isolation strategies in ADR 0025
- Fix PostgreSQL configuration environment variables

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
Co-authored-by: Gabriel Radureau <arcodange@gmail.com>
Co-committed-by: Gabriel Radureau <arcodange@gmail.com>

features/bdd_test.go

@@ -3,22 +3,29 @@ package features
 import (
 	"testing"
 
-	"dance-lessons-coach/pkg/bdd"
-	"github.com/cucumber/godog"
+	"dance-lessons-coach/pkg/bdd/testsetup"
 )
 
 func TestBDD(t *testing.T) {
-	suite := godog.TestSuite{
-		Name:                 "dance-lessons-coach BDD Tests",
-		TestSuiteInitializer: bdd.InitializeTestSuite,
-		ScenarioInitializer:  bdd.InitializeScenario,
-		Options: &godog.Options{
-			Format:   "progress",
-			Paths:    []string{"."},
-			TestingT: t,
-		},
+	// Get feature name from environment variable or default to all features
+	feature := testsetup.GetFeatureFromEnv()
+
+	var suiteName string
+	var paths []string
+
+	if feature == "" {
+		// Run all features
+		suiteName = "dance-lessons-coach BDD Tests - All Features"
+		paths = testsetup.GetAllFeaturePaths()
+	} else {
+		// Run specific feature
+		suiteName = "dance-lessons-coach BDD Tests - " + feature + " Feature"
+		paths = []string{feature}
 	}
 
+	config := testsetup.NewMultiFeatureConfig(paths, "progress", false)
+	suite := testsetup.CreateMultiFeatureTestSuite(t, config, suiteName)
+
 	if suite.Run() != 0 {
 		t.Fatal("non-zero status returned, failed to run BDD tests")
 	}