feat(server): log metadata and storage backends at startup

backend/cmd/server/main.go

@@ -37,6 +37,21 @@ func main() {
 		os.Exit(1)
 	}
 
+	switch cfg.Database.Backend {
+	case "sqlite":
+		slog.Info("metadata backend", "backend", "sqlite", "path", cfg.Database.SQLitePath)
+	default:
+		slog.Info("metadata backend", "backend", "postgres",
+			"host", cfg.Postgres.Host, "database", cfg.Postgres.Database)
+	}
+	switch cfg.Storage.Backend {
+	case "fs":
+		slog.Info("storage backend", "backend", "fs", "root", cfg.Storage.FSRoot)
+	default:
+		slog.Info("storage backend", "backend", "s3",
+			"endpoint", cfg.S3.Endpoint, "bucket", cfg.S3.Bucket)
+	}
+
 	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer stop()