LinkedIn own-analytics download and distillation. ALWAYS invoke when the user says "download my analytics", "analyze my LinkedIn analytics", "distill my post performance", "monthly analytics report", or hands over a LinkedIn analytics xlsx. Drives Chrome to export the raw analytics from LinkedIn (or takes a provided xlsx), parses it, appends to the local analytics.csv, and writes an insights report — performance tiers, trends, growth projection, what's working vs not, audience alignment. Do NOT use for competitor scraping (scout) or topic/trend research (research).