feat: pass options to downstream decryptor

src/features/settings/settingsSelector.ts

@@ -0,0 +1,11 @@
+import type { DecryptCommandOptions } from '~/decrypt-worker/types';
+import type { RootState } from '~/store';
+import { hasOwn } from '~/util/objects';
+
+export const selectDecryptOptionByFile = (state: RootState, name: string): DecryptCommandOptions => {
+  const qmc2Keys = state.settings.qmc2.keys;
+
+  return {
+    qmc2Key: hasOwn(qmc2Keys, name) ? qmc2Keys[name] : undefined,
+  };
+};