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/pbkdf2/lib/to-buffer.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var Buffer = require('safe-buffer').Buffer;
+var toBuffer = require('to-buffer');
+
+var useUint8Array = typeof Uint8Array !== 'undefined';
+var useArrayBuffer = useUint8Array && typeof ArrayBuffer !== 'undefined';
+var isView = useArrayBuffer && ArrayBuffer.isView;
+
+module.exports = function (thing, encoding, name) {
+	if (
+		typeof thing === 'string'
+		|| Buffer.isBuffer(thing)
+		|| (useUint8Array && thing instanceof Uint8Array)
+		|| (isView && isView(thing))
+	) {
+		return toBuffer(thing, encoding);
+	}
+	throw new TypeError(name + ' must be a string, a Buffer, a Uint8Array, or a DataView');
+};