feat: read only publish of drawings

src/core/publication.ts

@@ -0,0 +1,25 @@
+import { HttpError } from "./scene";
+
+const RESERVED_SLUGS = new Set(["api", "d", "p", "mcp"]);
+
+export function normalizePublicationSlug(input: unknown): string {
+  if (typeof input !== "string") {
+    throw new HttpError(400, "slug must be a string");
+  }
+
+  const normalized = input
+    .trim()
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-+|-+$/g, "");
+
+  if (normalized.length === 0) {
+    throw new HttpError(400, "slug is required");
+  }
+
+  if (RESERVED_SLUGS.has(normalized)) {
+    throw new HttpError(400, "slug is reserved");
+  }
+
+  return normalized;
+}

src/core/shared.ts

@@ -4,6 +4,19 @@ export type ScenePayload = {
   files: Record<string, unknown>;
 };
 
+export type DrawingPublication =
+  | {
+      enabled: false;
+    }
+  | {
+      enabled: true;
+      slug: string;
+    };
+
+export type PublicDrawing = {
+  title: string;
+} & ScenePayload;
+
 export type DrawingMeta = {
   id: string;
   title: string;