feat: recognize CutOS agent runtime

test/agent-type.test.js

@@ -0,0 +1,20 @@
+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const { resolveAgentType } = require('../lib/agent-type');
+
+test('missing and blank AGENT_TYPE default to openclaw', () => {
+  assert.equal(resolveAgentType(undefined), 'openclaw');
+  assert.equal(resolveAgentType(''), 'openclaw');
+  assert.equal(resolveAgentType('  '), 'openclaw');
+});
+
+test('supported AGENT_TYPE values are normalized', () => {
+  assert.equal(resolveAgentType('OPENCLAW'), 'openclaw');
+  assert.equal(resolveAgentType(' cutos-agent '), 'cutos-agent');
+});
+
+test('unsupported AGENT_TYPE fails fast', () => {
+  assert.throws(() => resolveAgentType('other'), /AGENT_TYPE must be one of/);
+});