feat(web): commercial governance onboarding ladder

* feat(web): governance onboarding ladder and paid path UI

Co-authored-by: Cursor <cursoragent@cursor.com>

* chore(ci): pin OSS workflow example to agentskeptic@8.6.1

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): restore agentskeptic enforce mention on guided activation page

Co-authored-by: Cursor <cursoragent@cursor.com>

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Co-authored-by: Cursor <cursoragent@cursor.com>