FreshBooks

Build me a freelancer invoicing app to replace FreshBooks. Requirements: - A local web app: Node + Express + better-sqlite3, binds to localhost. - Tables: clients, projects, time entries, expenses, invoices, payments. Invoices get sequential numbers (INV-2026-001). - Time tracking: a start/stop timer per project plus manual entries; uninvoiced time rolls into the next invoice draft at the project's hourly rate. - Invoice PDFs: an HTML template rendered with Puppeteer, my logo and bank details from config.json, saved to ./invoices/INV-XXXX.pdf. - Send an invoice by email via SMTP creds in .env, BCC me; mark paid manually, with an overdue list on the home page. - Expenses: amount, category, optional client, receipt image attached. - Reports: income by month, unpaid invoices with aging, income by client, and a yearly totals CSV export for my accountant. - No accounts, no telemetry, all data local; nightly copy of the SQLite file to ./backups/, keep 30. - Out of scope: card payments and a client portal, clients get a PDF and pay by bank transfer. Skip bank feeds and double-entry accounting. - README: setup, SMTP config, and how to edit the invoice template.