feat: 品牌重命名 Sub2API -> TianShuAPI

- 前端: 所有界面显示、i18n 文本、组件中的品牌名称
- 后端: 服务层、设置默认值、邮件模板、安装向导
- 数据库: 迁移脚本注释
- 保持功能完全一致，仅更改品牌名称

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

backend/internal/service/timing_wheel_service.go

@@ -1,63 +1,63 @@
-package service
-
-import (
-	"log"
-	"sync"
-	"time"
-
-	"github.com/zeromicro/go-zero/core/collection"
-)
-
-// TimingWheelService wraps go-zero's TimingWheel for task scheduling
-type TimingWheelService struct {
-	tw       *collection.TimingWheel
-	stopOnce sync.Once
-}
-
-// NewTimingWheelService creates a new TimingWheelService instance
-func NewTimingWheelService() *TimingWheelService {
-	// 1 second tick, 3600 slots = supports up to 1 hour delay
-	// execute function: runs func() type tasks
-	tw, err := collection.NewTimingWheel(1*time.Second, 3600, func(key, value any) {
-		if fn, ok := value.(func()); ok {
-			fn()
-		}
-	})
-	if err != nil {
-		panic(err)
-	}
-	return &TimingWheelService{tw: tw}
-}
-
-// Start starts the timing wheel
-func (s *TimingWheelService) Start() {
-	log.Println("[TimingWheel] Started (auto-start by go-zero)")
-}
-
-// Stop stops the timing wheel
-func (s *TimingWheelService) Stop() {
-	s.stopOnce.Do(func() {
-		s.tw.Stop()
-		log.Println("[TimingWheel] Stopped")
-	})
-}
-
-// Schedule schedules a one-time task
-func (s *TimingWheelService) Schedule(name string, delay time.Duration, fn func()) {
-	_ = s.tw.SetTimer(name, fn, delay)
-}
-
-// ScheduleRecurring schedules a recurring task
-func (s *TimingWheelService) ScheduleRecurring(name string, interval time.Duration, fn func()) {
-	var schedule func()
-	schedule = func() {
-		fn()
-		_ = s.tw.SetTimer(name, schedule, interval)
-	}
-	_ = s.tw.SetTimer(name, schedule, interval)
-}
-
-// Cancel cancels a scheduled task
-func (s *TimingWheelService) Cancel(name string) {
-	_ = s.tw.RemoveTimer(name)
-}
+package service
+
+import (
+	"log"
+	"sync"
+	"time"
+
+	"github.com/zeromicro/go-zero/core/collection"
+)
+
+// TimingWheelService wraps go-zero's TimingWheel for task scheduling
+type TimingWheelService struct {
+	tw       *collection.TimingWheel
+	stopOnce sync.Once
+}
+
+// NewTimingWheelService creates a new TimingWheelService instance
+func NewTimingWheelService() *TimingWheelService {
+	// 1 second tick, 3600 slots = supports up to 1 hour delay
+	// execute function: runs func() type tasks
+	tw, err := collection.NewTimingWheel(1*time.Second, 3600, func(key, value any) {
+		if fn, ok := value.(func()); ok {
+			fn()
+		}
+	})
+	if err != nil {
+		panic(err)
+	}
+	return &TimingWheelService{tw: tw}
+}
+
+// Start starts the timing wheel
+func (s *TimingWheelService) Start() {
+	log.Println("[TimingWheel] Started (auto-start by go-zero)")
+}
+
+// Stop stops the timing wheel
+func (s *TimingWheelService) Stop() {
+	s.stopOnce.Do(func() {
+		s.tw.Stop()
+		log.Println("[TimingWheel] Stopped")
+	})
+}
+
+// Schedule schedules a one-time task
+func (s *TimingWheelService) Schedule(name string, delay time.Duration, fn func()) {
+	_ = s.tw.SetTimer(name, fn, delay)
+}
+
+// ScheduleRecurring schedules a recurring task
+func (s *TimingWheelService) ScheduleRecurring(name string, interval time.Duration, fn func()) {
+	var schedule func()
+	schedule = func() {
+		fn()
+		_ = s.tw.SetTimer(name, schedule, interval)
+	}
+	_ = s.tw.SetTimer(name, schedule, interval)
+}
+
+// Cancel cancels a scheduled task
+func (s *TimingWheelService) Cancel(name string) {
+	_ = s.tw.RemoveTimer(name)
+}