fix: BCBS MA eligibility — name extraction, tab switching, DOB input, button color

- Extract patient first/last name from Patient Information DOM section
  (scoped to avoid duplicate Subscriber Information column values)
- Switch to latest tab at start of step2 (Eligibility Identifier opens in new tab)
- DOB: double-click + ActionChains.send_keys (no pyperclip, avoids Chrome crash)
- BCBS MA button changed to variant="default" to match nearby buttons
- Backend processor uses extracted names from selenium result

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

apps/Backend/src/queue/processors/bcbsMaEligibilityProcessor.ts

@@ -53,32 +53,15 @@ async function processBcbsMaResult(
   let createdPdfFileId: number | null = null;
 
   try {
-    // Resolve patient name
-    const rawName =
-      typeof seleniumResult?.patientName === "string" ? seleniumResult.patientName.trim() : null;
-
-    let firstName: string;
-    let lastName: string;
-
-    if (rawName) {
-      if (rawName.includes(",")) {
-        const [last, ...firstParts] = rawName.split(",").map((s: string) => s.trim());
-        lastName = last || formLastName || "";
-        firstName = firstParts.join(" ").trim() || formFirstName || "";
-      } else {
-        const parsed = splitName(rawName);
-        if (!parsed.lastName) {
-          lastName = parsed.firstName || formLastName || "";
-          firstName = formFirstName || "";
-        } else {
-          firstName = parsed.firstName || formFirstName || "";
-          lastName = parsed.lastName || formLastName || "";
-        }
-      }
-    } else {
-      firstName = formFirstName ?? "";
-      lastName = formLastName ?? "";
-    }
+    // Prefer names extracted from the BCBS MA results page (Demographic Information section)
+    const firstName: string =
+      (typeof seleniumResult?.firstName === "string" && seleniumResult.firstName.trim())
+        ? seleniumResult.firstName.trim()
+        : (formFirstName ?? "");
+    const lastName: string =
+      (typeof seleniumResult?.lastName === "string" && seleniumResult.lastName.trim())
+        ? seleniumResult.lastName.trim()
+        : (formLastName ?? "");
 
     await createOrUpdatePatientByInsuranceId({ insuranceId, firstName, lastName, dob: formDob, userId });