feat: add provider column, commission tracking, and report provider filter

- Claims & Payments: save npiProviderId when submitting MH claim; sync between claim and payment on update
- Claims table: add Provider column showing rendering provider name
- Payments table: add Provider column + purple Commissioned badge on status
- Claim edit modal: add Rendering Provider dropdown (defaults to Mary Scannell)
- Payment edit modal: add Rendering Provider dropdown + Commissioned metadata display
- Reports page: add Provider filter dropdown (dynamic from NPI providers settings)
- Reports page: remove Collections by Doctor report type and Select Doctor dropdown
- Commission section: new section in reports page with date range + provider filter, shows eligible paid claims/payments per provider, multi-select checkboxes, Pay Commission modal with print + save, marks payments as commissioned so they are excluded from future cycles
- DB: add CommissionBatch and CommissionBatchItem tables; backfill Payment.npiProviderId from linked claims
- Backend: PATCH /api/payments/:id/provider syncs to linked claim; PUT /api/claims/:id syncs to linked payment; new /api/commissions routes

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

apps/Frontend/src/components/claims/claim-form.tsx

@@ -788,6 +788,10 @@ export function ClaimForm({
       mimeType: f.type,
     }));
 
+    const selectedNpiProviderId = npiProvider?.npiNumber
+      ? npiProviders.find((p) => p.npiNumber === npiProvider.npiNumber)?.id ?? null
+      : null;
+
     const createdClaim = await onSubmit({
       ...formToCreateClaim,
       serviceLines: filteredServiceLines,
@@ -796,6 +800,7 @@ export function ClaimForm({
       insuranceProvider: "MassHealth",
       appointmentId: appointmentIdToUse!,
       claimFiles: claimFilesMeta,
+      ...(selectedNpiProviderId ? { npiProviderId: selectedNpiProviderId } : {}),
     });
 
     // 4. sending form data to selenium service