feat: add local access control and managed point clouds

shared/pointcloudMetadata.ts

@@ -0,0 +1,21 @@
+export type PointcloudMetadataStatus = "pending" | "ready" | "unsupported" | "error";
+
+export type PointcloudDataFormat =
+  | "ascii"
+  | "binary_little_endian"
+  | "binary_big_endian";
+
+export type PointAttribute = {
+  name: string;
+  type: string;
+  bytes: number;
+};
+
+export type PointcloudMetadataValues = {
+  metadataStatus: Exclude<PointcloudMetadataStatus, "pending">;
+  pointCount: number | null;
+  pointAttributes: PointAttribute[] | null;
+  pointDataFormat: PointcloudDataFormat | null;
+  bytesPerPoint: number | null;
+  metadataError: string | null;
+};