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/mapWithKeys.md

@@ -0,0 +1,29 @@
+# `mapWithKeys()`
+
+The mapWithKeys method iterates through the collection and passes each value to the given callback. The callback should return an array where the first element represents the key and the second element represents the value pair:
+
+```js
+const collection = collect([
+  {
+    name: 'John',
+    department: 'Sales',
+    email: 'john@example.com',
+  },
+  {
+    name: 'Jane',
+    department: 'Marketing',
+    email: 'jane@example.com',
+  },
+]);
+
+const keyed = collection.mapWithKeys(item => [item.email, item.name]);
+
+keyed.all();
+
+// {
+//   'john@example.com': 'John',
+//   'jane@example.com': 'Jane',
+// }
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/mapWithKeys.js)