🧪 test: add command-line tag override via GODOG_TAGS

- Modify all feature test suites to accept GODOG_TAGS environment variable
- Allow runtime tag filtering override for focused testing
- Update BDD_TAGS.md with usage examples
- Maintain default behavior when GODOG_TAGS not set

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

features/jwt/jwt_test.go

@@ -13,6 +13,13 @@ func TestJWTBDD(t *testing.T) {
 	// Set FEATURE environment variable for feature-specific configuration
 	os.Setenv("FEATURE", "jwt")
 
+	// Allow tag override via environment variable
+	tags := os.Getenv("GODOG_TAGS")
+	if tags == "" {
+		// Default tags if not overridden
+		tags = "~@flaky && ~@todo && ~@skip && @wip"
+	}
+
 	suite := godog.TestSuite{
 		Name:                 "dance-lessons-coach BDD Tests - JWT Feature",
 		TestSuiteInitializer: bdd.InitializeTestSuite,
@@ -24,7 +31,7 @@ func TestJWTBDD(t *testing.T) {
 			Strict:        true,
 			Randomize:     -1,
 			StopOnFailure: true,
-			Tags:          "~@flaky && ~@todo && ~@skip && @wip",
+			Tags:          tags,
 		},
 	}