start adding the SQL approach to files, also using the Dexie approach if desired

src/libs/endorserServer.ts

@@ -26,6 +26,7 @@ import {
   DEFAULT_IMAGE_API_SERVER,
   NotificationIface,
   APP_SERVER,
+  USE_DEXIE_DB,
 } from "../constants/app";
 import { Contact } from "../db/tables/contacts";
 import { accessToken, deriveAddress, nextDerivationPath } from "../libs/crypto";
@@ -49,6 +50,7 @@ import {
   CreateAndSubmitClaimResult,
 } from "../interfaces";
 import { logger } from "../utils/logger";
+import { PlatformServiceFactory } from "@/services/PlatformServiceFactory";
 
 /**
  * Standard context for schema.org data
@@ -1363,7 +1365,14 @@ export async function setVisibilityUtil(
     if (resp.status === 200) {
       const success = resp.data.success;
       if (success) {
-        db.contacts.update(contact.did, { seesMe: visibility });
+        const platformService = PlatformServiceFactory.getInstance();
+        await platformService.dbExec(
+          "UPDATE contacts SET seesMe = ? WHERE did = ?",
+          [visibility, contact.did],
+        );
+        if (USE_DEXIE_DB) { 
+          db.contacts.update(contact.did, { seesMe: visibility });
+        }
       }
       return { success };
     } else {