fix: decouple weixin build helpers from whatsapp

pkg/channels/utils.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"sync"
+	"time"
 
 	"github.com/YspCoder/clawgo/pkg/logger"
 )
@@ -59,3 +60,14 @@ func runChannelTask(name, taskName string, task func() error, onFailure func(err
 		}
 	}()
 }
+
+func sleepWithContext(ctx context.Context, d time.Duration) bool {
+	timer := time.NewTimer(d)
+	defer timer.Stop()
+	select {
+	case <-ctx.Done():
+		return false
+	case <-timer.C:
+		return true
+	}
+}

pkg/channels/whatsapp.go

@@ -287,14 +287,3 @@ func nextBackoff(current, max time.Duration) time.Duration {
 	}
 	return next
 }
-
-func sleepWithContext(ctx context.Context, d time.Duration) bool {
-	timer := time.NewTimer(d)
-	defer timer.Stop()
-	select {
-	case <-ctx.Done():
-		return false
-	case <-timer.C:
-		return true
-	}
-}