fix: earliest patient record wins when duplicates share a phone (inbound SMS/voice)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/Backend/src/routes/twilio-webhooks.ts

@@ -193,8 +193,11 @@ router.post("/webhook/sms", async (req: Request, res: Response): Promise<any> =>
     const { From, To, Body, MessageSid } = req.body;
 
     const normalizedFrom = (From || "").replace(/\D/g, "");
+    // Ordered by id so that when duplicate patients share a phone number
+    // (one record per insurance), the earliest-created record is the default.
     const allPatients = await db.patient.findMany({
       select: { id: true, phone: true, userId: true, preferredLanguage: true },
+      orderBy: { id: "asc" },
     });
     const patient = allPatients.find(
       (p) => p.phone && p.phone.replace(/\D/g, "") === normalizedFrom
@@ -635,7 +638,8 @@ router.post("/webhook/voice", async (req: Request, res: Response): Promise<any>
     const { From, CallSid } = req.body;
 
     const normalizedFrom = (From || "").replace(/\D/g, "");
-    const allPatients = await db.patient.findMany({ select: { id: true, phone: true, userId: true } });
+    // Ordered by id — earliest-created record wins when duplicates share a phone.
+    const allPatients = await db.patient.findMany({ select: { id: true, phone: true, userId: true }, orderBy: { id: "asc" } });
     const patient = allPatients.find(
       (p: { id: number; phone: string | null; userId: number }) => p.phone && p.phone.replace(/\D/g, "") === normalizedFrom
     );