Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/memfs/lib/setTimeoutUnref.d.ts

@@ -0,0 +1,7 @@
+export type TSetTimeout = (callback: (...args: any[]) => void, time?: number, args?: any[]) => any;
+/**
+ * `setTimeoutUnref` is just like `setTimeout`,
+ * only in Node's environment it will "unref" its macro task.
+ */
+declare function setTimeoutUnref(callback: any, time?: any, args?: any): object;
+export default setTimeoutUnref;