feat: add configurable operation delay

tests/background-operation-delay-exclusions.test.js

@@ -0,0 +1,22 @@
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+
+test('confirm-oauth and platform-verify stay free of operation delay gate calls', () => {
+  for (const file of [
+    'background/steps/confirm-oauth.js',
+    'background/steps/platform-verify.js',
+    'background/panel-bridge.js',
+    'content/sub2api-panel.js',
+  ]) {
+    const source = fs.readFileSync(file, 'utf8');
+    assert.doesNotMatch(source, /performOperationWithDelay\(/, `${file} must not call the operation delay gate`);
+    assert.doesNotMatch(source, /content\/operation-delay\.js/, `${file} must not inject operation delay`);
+  }
+});
+
+test('operation delay gate names exactly the two excluded step keys', () => {
+  const source = fs.readFileSync('content/operation-delay.js', 'utf8');
+  assert.match(source, /confirm-oauth/);
+  assert.match(source, /platform-verify/);
+});