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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

node_modules/collect.js/dist/methods/nth.js

@@ -0,0 +1,12 @@
+'use strict';
+
+var values = require('../helpers/values');
+
+module.exports = function nth(n) {
+  var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+  var items = values(this.items);
+  var collection = items.slice(offset).filter(function (item, index) {
+    return index % n === 0;
+  });
+  return new this.constructor(collection);
+};