fix(home): 首页业务入口默认展示，避免回收与反馈按钮被总开关隐藏

backend/internal/modules/systemconfig/home_entries_test.go

@@ -2,6 +2,12 @@ package systemconfig
 
 import "testing"
 
+func TestDefaultHomeEntriesEnabled(t *testing.T) {
+	if got := defaultHomeEntriesEnabledConfigValue(); got != "true" {
+		t.Fatalf("默认首页业务入口开关 = %q, want true", got)
+	}
+}
+
 func TestParseHomeEntriesEnabled(t *testing.T) {
 	cases := []struct {
 		value string

backend/internal/modules/systemconfig/service_home.go

@@ -12,7 +12,8 @@ import (
 const homeEntriesEnabledConfigKey = "mobile.home_entries_enabled"
 
 func defaultHomeEntriesEnabledConfigValue() string {
-	return "false"
+	// 默认展示，保持引入总开关前的线上表现；需要隐藏时由后台开关显式关闭。
+	return "true"
 }
 
 func (s *Service) HomeAnnouncements(ctx context.Context) (*HomeAnnouncementsDTO, error) {