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/firstWhere.md

@@ -0,0 +1,18 @@
+# `firstWhere()`
+
+The firstWhere method returns the first element in the collection with the given key / value pair:
+
+```js
+const collection = collect([
+  { name: 'Regena', age: 12 },
+  { name: 'Linda', age: 14 },
+  { name: 'Diego', age: 23 },
+  { name: 'Linda', age: 84 },
+]);
+
+collection.firstWhere('name', 'Linda');
+
+// { name: 'Linda', age: 14 }
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/firstWhere.js)