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/clean-css/lib/options/rebase-to.js

@@ -0,0 +1,7 @@
+var path = require('path');
+
+function rebaseToFrom(option) {
+  return option ? path.resolve(option) : process.cwd();
+}
+
+module.exports = rebaseToFrom;