Node.js Automation for Razer Gold OTP

Hi, I have a Node.js/TypeScript automation pipeline built for account creation and verification. Most of the architecture is complete and working smoothly: - Account creation and hCaptcha solving via API. - Email verification parsing and link execution. - Wallet setup via HTTP endpoints. - TOTP / 2FA setup. The Problem / Bottleneck: During the final step (Phone Linking & SMS Verification), the "GET OTP" action fails after processing 1–2 accounts with: "There was an unexpected error. Please reload the page and try again." (or Unusual activity detected [1190.3131]). This issue persists despite using rotating residential proxies, indicating aggressive browser fingerprinting, CDP/WebDriver leaks, or dynamic request signing checks (Akamai / SPA protections). Key Objectives: 1. Harden the browser automation layer (Playwright / Patchright / Stealth) with proper fingerprint isolation so each session mimics a clean, authentic device. 2. Ensure UI events and state bindings trigger correctly without triggering bot heuristics during the OTP request. 3. (Optional / Value-add) Evaluate the feasibility of migrating the phone-linking step to pure HTTP requests by properly handling dynamic headers/signatures. Required Experience: - Strong background in Playwright, Puppeteer, and anti-detect techniques. - Experience with Akamai Bot Manager, SPA state flows, and browser fingerprinting (Canvas, WebGL, TLS/HTTP2). - Practical experience debugging reverse engineering challenges in web applications. Please mention your previous experience with similar anti-bot systems in your proposal.