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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/fs-extra/lib/index.js

@@ -0,0 +1,16 @@
+'use strict'
+
+module.exports = {
+  // Export promiseified graceful-fs:
+  ...require('./fs'),
+  // Export extra methods:
+  ...require('./copy'),
+  ...require('./empty'),
+  ...require('./ensure'),
+  ...require('./json'),
+  ...require('./mkdirs'),
+  ...require('./move'),
+  ...require('./output-file'),
+  ...require('./path-exists'),
+  ...require('./remove')
+}