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/mode.md

@@ -0,0 +1,30 @@
+# `mode()`
+
+The mode method returns the mode value of a given key:
+
+```js
+collect([1, 3, 3, 6, 7, 8, 9]).mode();
+
+// [3]
+```
+
+```js
+collect([
+  {
+    foo: 1,
+  },
+  {
+    foo: 1,
+  },
+  {
+    foo: 2,
+  },
+  {
+    foo: 4,
+  },
+]).mode('foo');
+
+// [1]
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/mode.js)