more use of identifiable errors, improvements to inner error rendering, and more heuristics for is-retryable-error

packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts

@@ -70,7 +70,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				try {
 					await this.userAuthService.twoFactorAuthenticate(profile, token);
 				} catch (e) {
-					throw new Error('authentication failed');
+					throw new Error('authentication failed', { cause: e });
 				}
 			}