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/docs/api/zip.md

@@ -0,0 +1,15 @@
+# `zip()`
+
+The zip method merges together the values of the given array with the values of the original collection at the corresponding index:
+
+```js
+const collection = collect(['Chair', 'Desk']);
+
+const zipped = collection.zip([100, 200]);
+
+zipped.all();
+
+// [['Chair', 100], ['Desk', 200]]
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/zip.js)