feat: Obscura integration — challenge-solver flag

[alfonsodg]

Problem

Obscura needs a way to delegate captcha/anti-bot challenges to the Camoufox solver service.

Proposal

Add to Obscura CLI:

obscura fetch https://seace.gob.pe/... \
  --challenge-solver http://localhost:8888 \
  --eval "document.title"

Flow

1. Obscura loads page
2. Detects challenge (reCAPTCHA script, Cloudflare headers, etc.)
3. Calls solver service: POST http://localhost:8888/solve
4. Receives token/cookies
5. Injects into page and continues

Detection heuristics

• <script src="*recaptcha*"> → recaptcha_v3
• <script src="*challenges.cloudflare*"> → turnstile
• cf-mitigated: challenge header → cloudflare_waf
• Title "Just a moment..." → cloudflare_waf

[ukenmisneru]

it's a smart method