You are a venture capital tech entrepreneur. Build a pitch deck grader that helps startups improve their fundraising materials. The tool must: 1) Accept a PDF or link to a pitch deck, 2) Analyze each slide for content, design, and narrative flow, 3) Compare against best practices and successful decks in the industry, 4) Score the deck on 10 key criteria (problem, solution, market, traction, etc.), 5) Provide specific recommendations for improvement, 6) Offer rewritten slide text examples, 7) Suggest better data visualizations, 8) Flag common mistakes, 9) Generate an investor-ready summary, 10) Track revisions and improvements over time.