feat: chatbot screenshot-only eligibility detect, Sun Life/DentaQuest auto-check, chatbot attachment handoff to preauth; fix TuftsSCO preauth Selenium reliability

- Chatbot: submitting with only a screenshot attached (no text) now triggers the same
  "AI Detect & Check Eligibility" flow as the Copy Agent page
- detect-eligibility-info now also extracts the visible insurance payer name and picks
  Tufts SCO auto-check when both Sun Life and DentaQuest are detected, else MassHealth
- Chatbot-attached files are now handed off to both claim and preauth forms unconditionally,
  not just claims
- TuftsSCO preauth Selenium worker: verify-and-retry the Tooth field (typing was silently
  getting reset by duplicate-procedure-code warning banners), add a final re-verification
  pass across all rows, fix acknowledgement-checkbox targeting/verification, and verify
  the "Next step" click actually advances the wizard instead of trusting a blind click

packages/db/prisma/migrations/20260721032129_add_appointment_npi_provider_id/migration.sql

@@ -0,0 +1,5 @@
+-- AlterTable
+ALTER TABLE "Appointment" ADD COLUMN     "npiProviderId" INTEGER;
+
+-- AddForeignKey
+ALTER TABLE "Appointment" ADD CONSTRAINT "Appointment_npiProviderId_fkey" FOREIGN KEY ("npiProviderId") REFERENCES "NpiProvider"("id") ON DELETE SET NULL ON UPDATE CASCADE;

packages/db/shared/.prisma-zod-generator-manifest.json

@@ -1,8 +1,8 @@
 {
   "version": "1.0",
   "generatorVersion": "1.0.0",
-  "generatedAt": "2026-07-21T01:43:44.482Z",
-  "outputPath": "/home/ff/Desktop/DentalManagementMH07/packages/db/shared",
+  "generatedAt": "2026-07-21T03:13:42.342Z",
+  "outputPath": "/home/gg/Desktop/DentalManagementMH07/packages/db/shared",
   "files": [
     "schemas/enums/TransactionIsolationLevel.schema.ts",
     "schemas/enums/UserScalarFieldEnum.schema.ts",