fix: pass buildId to worker

quartz/worker.ts

@@ -7,8 +7,14 @@ import { createFileParser, createProcessor } from "./processors/parse"
 import { options } from "./util/sourcemap"
 
 // only called from worker thread
-export async function parseFiles(argv: Argv, fps: FilePath[], allSlugs: FullSlug[]) {
+export async function parseFiles(
+  buildId: string,
+  argv: Argv,
+  fps: FilePath[],
+  allSlugs: FullSlug[],
+) {
   const ctx: BuildCtx = {
+    buildId,
     cfg,
     argv,
     allSlugs,