✨ feat: layer effects, bucket fill, simple brush

packages/editor-core/src/serialization.ts

@@ -0,0 +1,26 @@
+import { ProjectFileSchema, type Project, type ProjectFile } from "@pien-studio/types";
+import { normalizeProject } from "./normalize";
+
+export function serializeProjectFile(project: Project, options?: { checkpointCount?: number }): string {
+  const document: ProjectFile = {
+    format: "pien.project",
+    version: 1,
+    exportedAt: new Date().toISOString(),
+    app: { name: "pien.studio", platform: "web" },
+    project,
+    assets: [],
+    history: { checkpointCount: options?.checkpointCount ?? 0 },
+  };
+  return JSON.stringify(document, null, 2);
+}
+
+export function parseProjectFile(raw: string): { ok: true; project: Project } | { ok: false; error: string } {
+  try {
+    const data = JSON.parse(raw) as unknown;
+    const result = ProjectFileSchema.safeParse(data);
+    if (result.success) return { ok: true, project: normalizeProject(result.data.project) };
+    return { ok: false, error: "Invalid project format" };
+  } catch {
+    return { ok: false, error: "Invalid JSON" };
+  }
+}