Fix editor regressions and add Blender scene and animated material import

engine/build-kit.ts

@@ -1,5 +1,5 @@
 import { zipSync, unzipSync, strToU8 } from "fflate";
-import { gameArchive, readBytes } from "./archive.ts";
+import { gameArchive, readBytes, engineResource } from "./archive.ts";
 import type { Project } from "./schema.ts";
 import { normalizeOptions } from "../native/options.mjs";
 export async function buildKit(
@@ -13,7 +13,7 @@ export async function buildKit(
   for (const [name, data] of Object.entries(game))
     files["native/game/" + name] = data;
   const manifest = JSON.parse(
-    new TextDecoder().decode(await read("/build-targets/manifest.json")),
+    new TextDecoder().decode(await read(engineResource("/build-targets/manifest.json"))),
   ) as string[];
   for (const name of manifest) {
     if (
@@ -22,7 +22,7 @@ export async function buildKit(
       name.startsWith("/")
     )
       throw Error("Invalid build template path");
-    files["native/" + name] = await read("/build-targets/" + name);
+    files["native/" + name] = await read(engineResource("/build-targets/" + name));
   }
   files["native/build-config.json"] = strToU8(JSON.stringify(options, null, 2));
   files["README.txt"] = strToU8(