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/dd.md

@@ -0,0 +1,12 @@
+# `dd()`
+
+The dd method will `console.log` the collection and exit the current process:
+
+```js
+const collection = collect([1, 2, 3]).dd();
+
+// Collection { items: [ 1, 2, 3 ] }
+// (Exits node.js process)
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/dd.js)