This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Independent contractors in India—plumbers, electricians, freelance event photographers, mechanics, and home bakers—spend their entire day doing hands-on work. The last thing they want to do at 9:00 PM is sit at a desk, open a spreadsheet, look up HSN/SAC tax codes, separate material costs from labor charges, calculate CGST/SGST splits, and format a PDF bill. Because of this fri...