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/tough-cookie/dist/cookie/formatDate.d.ts

@@ -0,0 +1,15 @@
+/**
+ * Format a {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date | Date} into
+ * the {@link https://www.rfc-editor.org/rfc/rfc2616#section-3.3.1 | preferred Internet standard format}
+ * defined in {@link https://www.rfc-editor.org/rfc/rfc822#section-5 | RFC822} and
+ * updated in {@link https://www.rfc-editor.org/rfc/rfc1123#page-55 | RFC1123}.
+ *
+ * @example
+ * ```
+ * formatDate(new Date(0)) === 'Thu, 01 Jan 1970 00:00:00 GMT`
+ * ```
+ *
+ * @param date - the date value to format
+ * @public
+ */
+export declare function formatDate(date: Date): string;