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/fs-extra/lib/json/output-json-sync.js

@@ -0,0 +1,12 @@
+'use strict'
+
+const { stringify } = require('jsonfile/utils')
+const { outputFileSync } = require('../output-file')
+
+function outputJsonSync (file, data, options) {
+  const str = stringify(data, options)
+
+  outputFileSync(file, str, options)
+}
+
+module.exports = outputJsonSync