feat(invoices): show customer name/phone, align meta column, totals left, JPEG

- Invoice PDF now shows the customer's full name and a phone row (sourced from
  the auth store for the user page, invoice.user for admin) instead of just email.
- Left-align all meta values into a single clean column (unicode-bidi:plaintext
  so Persian names stay RTL while phone/dates read LTR).
- Move the totals box to the left side of the page.
- Rasterize as JPEG (q0.9) instead of PNG to keep the file small (~130KB).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/i18n/dictionaries/en.ts

@@ -713,6 +713,7 @@ const en: Dictionary = {
         colDesc: 'Description',
         colAmount: 'Amount',
         customer: 'Customer',
+        phone: 'Phone',
         application: 'Application',
         createdAt: 'Issued on',
         paidAt: 'Paid on',

frontend/src/i18n/dictionaries/fa.ts

@@ -712,6 +712,7 @@ const fa = {
         colDesc: 'شرح اقلام',
         colAmount: 'مبلغ',
         customer: 'مشتری',
+        phone: 'تلفن تماس',
         application: 'اپلیکیشن',
         createdAt: 'تاریخ صدور',
         paidAt: 'تاریخ پرداخت',