* fix(scanner): pre-seed accepted ConsentOS consent before crawling
A site running ConsentOS exposes one set of cookies before consent
(strictly necessary only) and a much larger set after the visitor
accepts analytics/marketing/personalisation. The scanner is meant to
answer "what does this site actually load?" — but because the crawler
clears cookies and navigates without ever interacting with the
banner, every scan returned the pre-consent view. Useful for spotting
trackers that fire before consent (which is what
``consent_validator.py`` does), useless for the cookie inventory the
admin UI exists to display.
Plant ``_consentos_consent`` on the browser context with all
categories accepted before ``page.goto``. The cookie payload mirrors
``apps/banner/src/consent.ts:writeConsent`` exactly (URL-encoded
``ConsentState`` JSON, ``Lax`` SameSite, year-long expiry) so the
loader's ``readConsent`` short-circuits straight to
``updateAcceptedCategories(['necessary','functional','analytics',
'marketing','personalisation'])`` — the blocker is bypassed and the
crawl sees what the visitor would see.
Pre-consent compliance checks live in ``consent_validator.py`` and
use a separate code path; this change only touches the cookie
inventory crawl.
* style: ruff format crawler.py