feat: add PreAuth tab, preauth selenium flow, and PreAuth No column

- Insurance Forms modal: split into Insurance Claim / PreAuth tabs
- PreAuth tab: same patient info + service lines, no toggle/direct combos
- Excluded Recalls & New Patients, Composite Fillings (Front/Back), Pedo from PreAuth combos
- Extractions: replaced Simple/Surg/Baby Teeth EXT with Full Bony EXT (D7240)
- MH PreAuth button: rewritten selenium worker to use masshealth-dental.org,
  selects Dental Prior Authorization (2nd option), skips Date of Service field
- agent.py: convert pdf_path to pdf_url for /claim-pre-auth endpoint
- nginx + Express: raise body size limit to 50mb (fix 413 errors)
- DB schema: appointmentId optional on Claim, add preAuthNumber field, add PREAUTH status
- Backend: create PREAUTH claim record on preauth submit, save preAuthNumber on completion
- Claims table: add PreAuth No column (blue) next to Claim No

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

apps/Backend/src/routes/claims.ts

@@ -361,6 +361,35 @@ router.post(
         massdhpPassword: credentials.password,
       };
 
+      // Create a minimal PREAUTH claim record so the preauth number can be stored and shown
+      let preAuthClaimId: number | undefined;
+      try {
+        const serviceDate = claimData.serviceDate
+          ? new Date(claimData.serviceDate)
+          : new Date();
+        const dob = claimData.dateOfBirth
+          ? new Date(claimData.dateOfBirth)
+          : new Date("2000-01-01");
+
+        const preAuthRecord = await storage.createClaim({
+          patientId: Number(claimData.patientId),
+          appointmentId: claimData.appointmentId ? Number(claimData.appointmentId) : null,
+          userId: req.user.id,
+          staffId: Number(claimData.staffId) || 1,
+          patientName: claimData.patientName || "",
+          memberId: claimData.memberId || "",
+          dateOfBirth: dob,
+          remarks: claimData.remarks || "",
+          missingTeethStatus: claimData.missingTeethStatus || "No_missing",
+          serviceDate,
+          insuranceProvider: "MassHealth",
+          status: "PREAUTH",
+        } as any);
+        preAuthClaimId = preAuthRecord.id;
+      } catch (e: any) {
+        console.error("[preauth] failed to create preauth record:", e?.message);
+      }
+
       const filesForQueue = [...pdfs, ...images].map((f) => ({
         originalname: f.originalname,
         bufferBase64: f.buffer.toString("base64"),
@@ -373,7 +402,7 @@ router.post(
         socketId: req.body.socketId,
         enrichedPayload: enrichedData,
         files: filesForQueue,
-        claimId: claimData.claimId,
+        claimId: preAuthClaimId ?? claimData.claimId,
       });
 
       return res.json({ jobId: job.id, status: "queued" });