feat: use postgres

notification/internal/worker/stream_publisher.go

@@ -0,0 +1,18 @@
+package worker
+
+import (
+	"context"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// StreamPublisher abstracts the subset of the Redis Streams API used by the
+// route publishers to emit one outbound stream entry. The default
+// implementation in production wiring is `*redis.Client`. Tests substitute
+// an in-memory fake.
+type StreamPublisher interface {
+	// XAdd appends one entry to the configured stream. Implementations must
+	// honour `args.MaxLen` plus `args.Approx == true` for approximate trimming
+	// when the caller sets them.
+	XAdd(ctx context.Context, args *redis.XAddArgs) *redis.StringCmd
+}