Scan competitor websites and ad libraries, detect what changed since the last scan, and write a competitive briefing. Use when the user says "/competitor-intel", "competitor scan", "what are our competitors doing", "competitive intelligence", "competitor briefing", or asks to track a competitor's website or ads over time. First run walks through a short intake that stores company and competitor details in a competitor-intel/ folder in the current project — no company data lives in the skill. Works with no dependencies (curl); adds screenshots and LinkedIn ad extraction when Node and Playwright are available.