Major architecture update: stable identity, component validation, media indexing, and protocol docs

test/auth_helpers_test.dart

@@ -2,34 +2,6 @@ import 'package:chat_server/src/handlers/auth_handlers.dart';
 import 'package:test/test.dart';
 
 void main() {
-  group('parseUserId', () {
-    test('parses valid userId', () {
-      final parsed = parseUserId('alice@example.com');
-      expect(parsed, isNotNull);
-      expect(parsed!.username, 'alice');
-      expect(parsed.host, 'example.com');
-    });
-
-    test('returns null for invalid userId', () {
-      expect(parseUserId('alice'), isNull);
-      expect(parseUserId('alice@'), isNull);
-      expect(parseUserId('@example.com'), isNull);
-      expect(parseUserId('alice@example.com@x'), isNull);
-    });
-  });
-
-  group('defaultSchemeForHost', () {
-    test('returns http for localhost-style hosts', () {
-      expect(defaultSchemeForHost('localhost:9870'), 'http');
-      expect(defaultSchemeForHost('127.0.0.1:9870'), 'http');
-      expect(defaultSchemeForHost('[::1]:9870'), 'http');
-    });
-
-    test('returns https for non-local hosts', () {
-      expect(defaultSchemeForHost('chat.example.com'), 'https');
-    });
-  });
-
   group('normalizeHomeServer', () {
     test('normalizes host without scheme', () {
       expect(
@@ -59,30 +31,30 @@ void main() {
     });
   });
 
-  group('homeServerMatchesUserIdHost', () {
-    test('matches host and explicit port', () {
+  group('defaultSchemeForHost', () {
+    test('returns http for localhost-style hosts', () {
+      expect(defaultSchemeForHost('localhost:9870'), 'http');
+      expect(defaultSchemeForHost('127.0.0.1:9870'), 'http');
+      expect(defaultSchemeForHost('[::1]:9870'), 'http');
+    });
+
+    test('returns https for non-local hosts', () {
+      expect(defaultSchemeForHost('chat.example.com'), 'https');
+    });
+  });
+
+  group('toUserHandle', () {
+    test('uses URL host and port', () {
       expect(
-        homeServerMatchesUserIdHost(
-            'https://chat.example.com:8443', 'chat.example.com:8443'),
-        isTrue,
-      );
-      expect(
-        homeServerMatchesUserIdHost(
-            'https://chat.example.com:8443', 'chat.example.com'),
-        isFalse,
+        toUserHandle('alice', 'https://chat.example.com:8443'),
+        '@alice@chat.example.com:8443',
       );
     });
 
-    test('matches default ports when omitted', () {
+    test('falls back to raw home server string', () {
       expect(
-        homeServerMatchesUserIdHost(
-            'https://chat.example.com', 'chat.example.com:443'),
-        isTrue,
-      );
-      expect(
-        homeServerMatchesUserIdHost(
-            'http://chat.example.com', 'chat.example.com:80'),
-        isTrue,
+        toUserHandle('alice', 'chat.example.com'),
+        '@alice@chat.example.com',
       );
     });
   });