refactor: migrate EncryptID URLs from encryptid.jeffemmett.com to auth.ridentity.online

Part of the ridentity.online branding migration. The EncryptID auth
server is now accessible at auth.ridentity.online (with the legacy
encryptid.jeffemmett.com kept as a backward-compatible alias).

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

src/encryptid/README.md

@@ -227,7 +227,7 @@ if (!allowed) {
 
 EncryptID uses [Related Origin Requests](https://passkeys.dev/docs/advanced/related-origins/) to share passkeys across r-ecosystem domains.
 
-Configuration at `https://encryptid.online/.well-known/webauthn`:
+Configuration at `https://auth.ridentity.online/.well-known/webauthn`:
 
 ```json
 {

src/encryptid/session.ts

@@ -156,7 +156,7 @@ export class SessionManager {
 
     // Build claims
     const claims: EncryptIDClaims = {
-      iss: 'https://encryptid.jeffemmett.com',
+      iss: 'https://auth.ridentity.online',
       sub: did,
       aud: [
         'rspace.online',

website/index.html

@@ -571,7 +571,7 @@
 				<a href="https://rdata.online" class="ecosystem-app">📊 rData</a>
 			</div>
 
-			<a href="https://encryptid.jeffemmett.com" class="encryptid-link">
+			<a href="https://ridentity.online" class="encryptid-link">
 				🔐 Learn more about EncryptID
 			</a>
 		</div>