feat: ✨ implemented transaction exports

[laryhills]

✨ Implemented transaction exports

• Closes Transaction Export (CSV/PDF) #176

---

📌 Type of Change

• Added transaction export (CSV/PDF) feature
• Created export queue and background workers
• Added ExportService, PdfGenerator, CsvGenerator
• Created export exports table migration
• Updated auth middleware, rate limiting, and SMTP for export emails
• Updated env variables and dependencies

Files Changed:

• backend/.env.example
• backend/config/rateLimiting.js
• backend/controllers/exportController.js (new)
• backend/middleware/auth.js
• backend/migrations/20260222000000_create_export_exports_table.js (new)
• backend/models/Transaction.js
• backend/package-lock.json
• backend/package.json
• backend/queues/exportQueue.js (new)
• backend/routes/transactions.js
• backend/server.js
• backend/services/CsvGenerator.js (new)
• backend/services/ExportService.js (new)
• backend/services/PdfGenerator.js (new)
• backend/services/external/smtp.js
• backend/templates/transaction-export.html (new)
• backend/workers.js
• package-lock.json

[vercel]

@laryhills is attempting to deploy a commit to the llinsomoudu-gmailcom's projects Team on Vercel.

A member of the Team first needs to authorize it.

[netlify]

👷 Deploy request for taggedpay pending review.

Visit the deploys page to approve it

Name	Link
🔨 Latest commit	a22f27e