fix(config): decode *bool so trailing-slash redirect binds from yaml/env

backend/plugins/drivers/driver_http/engine_slash_test.go

@@ -3,7 +3,11 @@
 
 package driver_http
 
-import "testing"
+import (
+	"testing"
+
+	"Wavelet/core/extpoints"
+)
 
 func TestBuildEngineDefaultRedirectsTrailingSlash(t *testing.T) {
 	eng, err := BuildEngineWithConfig(httpAppConfig{}, httpRedisConfig{})
@@ -25,4 +29,85 @@ func TestBuildEngineCanDisableRedirectTrailingSlash(t *testing.T) {
 	}
 }
 
+func TestBindAppConfigDefaultKeepsTrailingSlashRedirect(t *testing.T) {
+	cfg := bindAppConfig(t, map[string]any{}, map[string]string{})
+	if cfg.RedirectTrailingSlash != nil {
+		t.Fatal("absent redirect_trailing_slash must leave *bool nil")
+	}
+	eng, err := BuildEngineWithConfig(cfg, httpRedisConfig{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !eng.RedirectTrailingSlash {
+		t.Fatal("default RedirectTrailingSlash must be true after Bind")
+	}
+}
+
+func TestBindAppConfigCanDisableTrailingSlashRedirect(t *testing.T) {
+	cfg := bindAppConfig(t, map[string]any{"app.redirect_trailing_slash": false}, nil)
+	if cfg.RedirectTrailingSlash == nil || *cfg.RedirectTrailingSlash {
+		t.Fatal("yaml false must bind *false")
+	}
+	eng, err := BuildEngineWithConfig(cfg, httpRedisConfig{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if eng.RedirectTrailingSlash {
+		t.Fatal("RedirectTrailingSlash must honor bound false")
+	}
+}
+
+func TestBindAppConfigEnvCanDisableTrailingSlashRedirect(t *testing.T) {
+	cfg := bindAppConfig(t, nil, map[string]string{"APP_REDIRECT_TRAILING_SLASH": "false"})
+	if cfg.RedirectTrailingSlash == nil || *cfg.RedirectTrailingSlash {
+		t.Fatal("env false must bind *false")
+	}
+	eng, err := BuildEngineWithConfig(cfg, httpRedisConfig{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if eng.RedirectTrailingSlash {
+		t.Fatal("RedirectTrailingSlash must honor env-bound false")
+	}
+}
+
+type slashConfigSource struct {
+	values map[string]any
+	env    map[string]string
+}
+
+func (s slashConfigSource) Lookup(path string) (any, bool) {
+	v, ok := s.values[path]
+	return v, ok
+}
+
+func (s slashConfigSource) LookupEnv(name string) (string, bool) {
+	v, ok := s.env[name]
+	return v, ok
+}
+
+func (s slashConfigSource) Describe() string { return "slash-test" }
+
+func bindAppConfig(t *testing.T, values map[string]any, env map[string]string) httpAppConfig {
+	t.Helper()
+	if values == nil {
+		values = map[string]any{}
+	}
+	if env == nil {
+		env = map[string]string{}
+	}
+	r := extpoints.NewConfigRegistry(slashConfigSource{values: values, env: env})
+	if err := r.Declare("driver_http", extpoints.ConfigBinding{Prefix: "app", Target: &httpAppConfig{}}); err != nil {
+		t.Fatal(err)
+	}
+	if err := r.Resolve(); err != nil {
+		t.Fatal(err)
+	}
+	var cfg httpAppConfig
+	if err := r.Bind("app", &cfg); err != nil {
+		t.Fatal(err)
+	}
+	return cfg
+}
+
 func boolPtr(v bool) *bool { return &v }