feat: payment PDF extraction, import, and remittance tracking

- Add Upload Payment Documents section with Extract & Download (Excel)
  and Extract & Import (database) buttons
- PDF extractor (pdfplumber) parses MassHealth RA PDFs: two-pass
  strategy joins summary-page ICN/patient map with detail-page
  procedure data (CDT code, paid code, tooth, date, allowed amount)
- RA cover-page summary (Payee ID, RA #, Payment Amount, etc.)
  included as separate Excel sheet; numeric values written as numbers
- Backend PDF import route groups rows by Member #, finds/creates
  patient, creates Payment + ServiceLines with ICN per procedure
- Add icn, paidCode, allowedAmount fields to ServiceLine schema
- Payments table: status simplified to Paid in Full / Balance;
  adjustment auto-computed on mhPaidAmount/copayment change;
  Paid in Full and Revert buttons with confirmation dialogs
- Edit Payment modal: shows ICN, Paid Code, Allowed Amount per line
- PDF Import badge distinguishes from OCR imports in payments table

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/db/shared/schemas/variants/input/ServiceLine.input.ts

@@ -11,6 +11,9 @@ export const ServiceLineInputSchema = z.object({
     arch: z.string().optional().nullable(),
     toothNumber: z.string().optional().nullable(),
     toothSurface: z.string().optional().nullable(),
+    icn: z.string().optional().nullable(),
+    paidCode: z.string().optional().nullable(),
+    allowedAmount: z.number().optional().nullable(),
     totalBilled: z.number(),
     totalPaid: z.number(),
     totalAdjusted: z.number(),