fix: honor alert forwarding business responses

internal/ingest/alert_outbox.go

@@ -1,10 +1,8 @@
 package ingest
 
 import (
-	"bytes"
 	"encoding/json"
 	"fmt"
-	"net/http"
 	"strings"
 	"time"
 
@@ -118,25 +116,7 @@ func forwardRawEvent(body RawEventIngestBody) error {
 	if err != nil {
 		return err
 	}
-	url := cfg.BaseURL + "/Alert/v1/raw-events/ingest"
-	req, err := http.NewRequest(http.MethodPost, url, bytes.NewReader(raw))
-	if err != nil {
-		return err
-	}
-	req.Header.Set("Content-Type", "application/json")
-	if cfg.InternalKey != "" {
-		req.Header.Set("X-Internal-Key", cfg.InternalKey)
-	}
-	client := &http.Client{Timeout: 10 * time.Second}
-	resp, err := client.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("alert returned HTTP %d", resp.StatusCode)
-	}
-	return nil
+	return postAlertPayload(cfg, "/Alert/v1/raw-events/ingest", raw)
 }
 
 func markOutboxRetry(row models.AlertOutbox, msg string) {