chore(js/frontend): migrate faucet verification to Cloudflare Turnstile

[nikitayutanov]

No description provided.

[Copilot]

Pull request overview

This PR migrates the faucet verification system from hCaptcha to Cloudflare Turnstile. The change involves replacing the captcha library, updating environment variables across the deployment pipeline, and redesigning the verification UI to use an overlay modal approach instead of an invisible widget.

Changes:

• Replaced @hcaptcha/react-hcaptcha package with @marsidev/react-turnstile library
• Refactored the verification flow to use manual execution with visual feedback via an overlay
• Updated environment variable names from VITE_HCAPTCHA_SITEKEY to VITE_TURNSTILE_SITEKEY across Dockerfile and GitHub workflow

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
yarn.lock	Removed hCaptcha packages and dependencies, added @marsidev/react-turnstile package
js/frontend/src/features/faucet/consts.ts	Updated constant name from HCAPTCHA_SITEKEY to TURNSTILE_SITEKEY
js/frontend/src/features/faucet/components/get-balance-button/get-balance-button.tsx	Replaced hCaptcha implementation with Turnstile, added overlay modal and state management for verification visibility
js/frontend/src/features/faucet/components/get-balance-button/get-balance-button.module.scss	Added overlay styles with backdrop blur for verification widget
js/frontend/package.json	Updated package dependency from @hcaptcha/react-hcaptcha to @marsidev/react-turnstile
js/frontend/Dockerfile	Updated environment variable from VITE_HCAPTCHA_SITEKEY to VITE_TURNSTILE_SITEKEY
.github/workflows/deploy-frontend.yml	Updated environment variable from VITE_HCAPTCHA_SITEKEY to VITE_TURNSTILE_SITEKEY

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.