refactor: upgrade to Go 1.26 and modernize code idioms

- Replace `interface{}` with `any` type alias across all packages
- Use built-in `min()`/`max()` for parameter clamping
- Use `slices.SortFunc`, `slices.Min`, `slices.Max` for cleaner code
- Use `strings.Cut()` for simpler string parsing in auth middleware
- Use `errors.Is()` for proper error comparison in handlers
- Update dependencies: golang.org/x/image 0.37.0 -> 0.38.0
- Add Wire code generation guidelines to ARCHITECTURE.md
- Disable Go cache in CI build workflow

internal/repository/push_repo.go

@@ -113,7 +113,7 @@ func (r *pushRecordRepository) BatchUpdateStatus(ids []int64, status model.PushS
 	if len(ids) == 0 {
 		return nil
 	}
-	updates := map[string]interface{}{
+	updates := map[string]any{
 		"push_status": status,
 	}
 	if status == model.PushStatusPushed {
@@ -126,7 +126,7 @@ func (r *pushRecordRepository) BatchUpdateStatus(ids []int64, status model.PushS
 
 // UpdateStatus 更新单条记录状态
 func (r *pushRecordRepository) UpdateStatus(id int64, status model.PushStatus) error {
-	updates := map[string]interface{}{
+	updates := map[string]any{
 		"push_status": status,
 	}
 	if status == model.PushStatusPushed {
@@ -141,7 +141,7 @@ func (r *pushRecordRepository) UpdateStatus(id int64, status model.PushStatus) e
 func (r *pushRecordRepository) MarkAsFailed(id int64, errMsg string) error {
 	return r.db.Model(&model.PushRecord{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"push_status":   model.PushStatusFailed,
 			"error_message": errMsg,
 			"retry_count":   gorm.Expr("retry_count + 1"),
@@ -152,7 +152,7 @@ func (r *pushRecordRepository) MarkAsFailed(id int64, errMsg string) error {
 func (r *pushRecordRepository) MarkAsDelivered(id int64) error {
 	return r.db.Model(&model.PushRecord{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"push_status":  model.PushStatusDelivered,
 			"delivered_at": time.Now(),
 		}).Error