Optimize viewer shaders and camera controls; sample GPU profiles asynchronously

Amp-Thread-ID: https://ampcode.com/threads/T-01a0b382-1e79-712b-abd1-d29201c9bb5e
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

server/build.mjs

@@ -34,12 +34,20 @@ const fxNodeImports = {
   },
 };
 
+const coreWorker = await build({
+  ...browser,
+  entryPoints: [path.join(root, "core", "worker.js")],
+  external: ["./pkg/yawn_core.js"],
+  write: false,
+});
+const coreWorkerSource = coreWorker.outputFiles[0].text;
+
 const workerFiles = new Map([
   [
     path.join(root, "core", "index.js"),
     {
       url: "./worker.js",
-      source: await fs.readFile(path.join(root, "core", "worker.js"), "utf8"),
+      source: coreWorkerSource,
     },
   ],
   [
@@ -113,15 +121,7 @@ await Promise.all([
     entryPoints: [path.join(fxNodeSource, "worker", "fxnode.worker.ts")],
     outfile: path.join(output, "fxnode-worker.js"),
   }),
-  build({
-    bundle: false,
-    entryPoints: [path.join(root, "core", "worker.js")],
-    format: "esm",
-    legalComments: "none",
-    minify: true,
-    outfile: path.join(output, "worker.js"),
-    target: "es2022",
-  }),
+  fs.writeFile(path.join(output, "worker.js"), coreWorkerSource),
   build({
     ...browser,
     entryPoints: [