fix

internal/collector/collector.go

@@ -6,6 +6,7 @@ import (
 	"container/ring"
 	"context"
 	"encoding/json"
+	"fmt"
 	"log"
 	"os"
 	"strconv"
@@ -230,6 +231,22 @@ func (c *Collector) SetIssueStatusStore(ctx context.Context, store issues.Status
 	return c.issues.SetStatusStore(ctx, store)
 }
 
+// RestoreIssues rebuilds the bounded in-memory issue index from persisted
+// occurrences. This keeps /issues aligned with alerting after a restart.
+func (c *Collector) RestoreIssues(ctx context.Context, occurrences []storage.Occurrence) (int, error) {
+	for _, occurrence := range occurrences {
+		var sample issues.Sample
+		if err := json.Unmarshal(occurrence.Sample, &sample); err != nil {
+			return 0, fmt.Errorf("decode persisted issue sample: %w", err)
+		}
+		if sample.Message == "" {
+			continue
+		}
+		c.issues.Restore(occurrence.Kind, occurrence.Service, sample.Message, sample)
+	}
+	return len(occurrences), nil
+}
+
 func (c *Collector) SimilarIssues(id string, limit int) ([]issues.SimilarIssue, bool) {
 	return c.issues.Similar(id, limit)
 }