I'll set up automatic certificate generation for orders and payments

I'm tired of hearing the same request over and over in chat: send me a certificate for orders, send me a payment statement, but now for last quarter, and tomorrow — for last month. Every time it's manual work: someone in support digs into the database, collects data and sends the document after a few hours. I make a feature that closes this issue once and for all: a certificate generator right in the personal account that automatically pulls order or payment history for the selected period and with the push of a button produces a ready, properly formatted PDF.

The setup covers the entire path from data to document. I design period selection and filters, connect them to existing order or payment tables without data duplication and build the PDF template so it looks like an official statement, not a raw export: neat header, total amounts, clear column headings, page breaks without splitting rows in the middle. I separately think through security: request frequency limits, caching of repeated requests and permission checks so no one can get someone else's history.

What you get as output:
— a working button to generate a certificate for a period right in the cabinet, without support requests
— a neat PDF template in your cabinet's style
— protection against abuse and repeated generation
— brief documentation so your team can add new certificate types independently