Returns live IPO calendar from Nasdaq — upcoming deals with expected pricing dates, recently priced offerings, new S-1 filings, and withdrawn deals. Covers all major US exchanges. Includes company name, ticker, exchange, price range, share count, and total offer amount. Structured extraction WITH summary analytics AND deal counts — richer than raw scraped calendars. Use section='upcoming' for near-term deal flow, section='priced' for post-IPO watchlist setup, section='all' for complete week vie