feat: select DDMA provider by NPI settings instead of always first

Pass the user's primary NPI provider name through the eligibility and
claim routes so the Selenium workers click the matching option in the
DDMA member-search provider dropdown (data-testid=member-search_provider_select-btn)
rather than always falling back to the first entry.

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

apps/Backend/src/routes/insuranceStatusDDMA.ts

@@ -67,10 +67,15 @@ router.post(
         });
       }
 
+      // Fetch NPI providers to pick the target provider on the DDMA portal
+      const npiProviders = await storage.getNpiProvidersByUser(req.user.id);
+      const primaryProvider = npiProviders[0]; // sorted by sortOrder asc, then id asc
+
       const enrichedData = {
         ...rawData,
         massddmaUsername: credentials.username,
         massddmaPassword: credentials.password,
+        providerName: primaryProvider?.providerName ?? "",
       };
 
       const socketId: string | undefined = req.body.socketId;

apps/Backend/src/routes/insuranceStatusDDMAClaim.ts

@@ -40,11 +40,16 @@ router.post("/ddma-claim", async (req: Request, res: Response): Promise<any> =>
       });
     }
 
+    // Fetch NPI providers to pick the target provider on the DDMA portal
+    const npiProviders = await storage.getNpiProvidersByUser(req.user.id);
+    const primaryProvider = npiProviders[0]; // sorted by sortOrder asc, then id asc
+
     const enrichedPayload = {
       claim: {
         ...claimData,
         massddmaUsername: credentials.username,
         massddmaPassword: credentials.password,
+        providerName: primaryProvider?.providerName ?? "",
       },
     };