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

apps/Frontend/src/pages/ai-copy-agent-page.tsx

@@ -301,13 +301,14 @@ export default function AiCopyAgentPage() {
 
       const memberId: string | null = detectResult.value?.data?.memberId ?? null;
       const dob: string | null = detectResult.value?.data?.dob ?? null;
+      const autoCheck: string = detectResult.value?.data?.autoCheck ?? "mh";
 
       window.dispatchEvent(
         new CustomEvent("chatbot:open-eligibility-id-ready", {
           detail: {
             memberId,
             dob,
-            autoCheck: "mh",
+            autoCheck,
             patient: {
               id: patient.id,
               firstName: patient.firstName,
@@ -336,11 +337,11 @@ export default function AiCopyAgentPage() {
     try {
       const files = await itemsToFiles(items);
 
-      let detected: { memberId: string | null; dob: string | null };
+      let detected: { memberId: string | null; dob: string | null; autoCheck: string };
       try {
         const json = await detectFromFiles(files);
         if (json?.error) throw new Error(json.message || "Detection failed");
-        detected = { memberId: json?.data?.memberId ?? null, dob: json?.data?.dob ?? null };
+        detected = { memberId: json?.data?.memberId ?? null, dob: json?.data?.dob ?? null, autoCheck: json?.data?.autoCheck ?? "mh" };
       } catch (error) {
         console.error("Error detecting Member ID/DOB:", error);
         toast({
@@ -351,7 +352,7 @@ export default function AiCopyAgentPage() {
         return;
       }
 
-      const { memberId, dob } = detected;
+      const { memberId, dob, autoCheck } = detected;
 
       if (memberId && dob) {
         let tempPatient: TempPatient;
@@ -395,7 +396,7 @@ export default function AiCopyAgentPage() {
             detail: {
               memberId,
               dob,
-              autoCheck: "mh",
+              autoCheck,
               patient: {
                 id: tempPatient.id,
                 firstName: tempPatient.firstName,
@@ -424,7 +425,7 @@ export default function AiCopyAgentPage() {
 
         window.dispatchEvent(
           new CustomEvent("chatbot:open-eligibility-id-ready", {
-            detail: { memberId, dob, autoCheck: "mh", patient: null },
+            detail: { memberId, dob, autoCheck, patient: null },
           })
         );
       }