Improved robustness for Roborock IoT REST calls — Summary

Overview

Improved resilience and error handling for Roborock IoT REST interactions, tightened test typings, and ensured lint/tests pass.

Resilience: Implemented an axios instance with timeout, keep-alive agent, and retry/backoff via axios-retry to handle transient network errors (including ECONNRESET, ETIMEDOUT).
Error handling: Wrapped REST calls and scheduled async handlers with try/catch so transient failures return undefined instead of causing unhandled rejections.
Typing: Removed any usages in tests and replaced them with explicit mock interfaces and unknown-based casts.
Lint/tests: Fixed ESLint issues and updated tests; full suite and lint now pass locally.

roborockIoTApi.ts — axios config, retry logic, try/catch on API methods.
module.ts — wrapped periodic/initial requestHomeData() calls with try/catch.
package.json — added axios-retry dependency.
roborockIoTApi.test.ts — new/updated unit tests for retry/exception behavior.
roborockService4.test.ts — removed any, added mock interfaces, adjusted expectations.
eslint.config.js — minor config updates to avoid parser issues.

API methods may now return undefined on transient failure where previously they could throw — callers should handle undefined (tests were updated).
Retries/backoff are enabled (3 attempts, exponential backoff). Monitor behavior in production and tune counts/delays if needed.