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/collect.js/dist/methods/union.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = function union(object) {
+  var _this = this;
+
+  var collection = JSON.parse(JSON.stringify(this.items));
+  Object.keys(object).forEach(function (prop) {
+    if (_this.items[prop] === undefined) {
+      collection[prop] = object[prop];
+    }
+  });
+  return new this.constructor(collection);
+};