refactor(infra): directory structure (#4615)

packages/frontend/core/src/polyfill/intl-segmenter.ts

@@ -0,0 +1,11 @@
+if (Intl.Segmenter === undefined) {
+  await import('intl-segmenter-polyfill-rs').then(({ Segmenter }) => {
+    Object.defineProperty(Intl, 'Segmenter', {
+      value: Segmenter,
+      configurable: true,
+      writable: true,
+    });
+  });
+}
+
+export {};

packages/frontend/core/src/polyfill/ses.ts

@@ -0,0 +1,19 @@
+import 'ses';
+
+if (!process.env.COVERAGE) {
+  lockdown({
+    evalTaming: 'unsafeEval',
+    overrideTaming: 'severe',
+    consoleTaming: 'unsafe',
+    errorTaming: 'unsafe',
+    errorTrapping: 'platform',
+    unhandledRejectionTrapping: 'report',
+  });
+
+  console.log('SES lockdown complete');
+} else {
+  Object.defineProperty(globalThis, 'harden', {
+    value: (x: any) => Object.freeze(x),
+    writable: false,
+  });
+}