fix: revert regions.php, add mock PATCH route for project region in tests

Co-authored-by: abnegate <5857008+abnegate@users.noreply.github.com>

app/config/regions.php

@@ -7,10 +7,4 @@ return [
         'disabled' => false,
         'default' => true,
     ],
-    'fra' => [
-        '$id' => 'fra',
-        'name' => 'Frankfurt',
-        'disabled' => false,
-        'default' => false,
-    ],
 ];

app/controllers/mock.php

@@ -279,6 +279,40 @@ Http::get('/v1/mock/github/callback')
         ]);
     });
 
+Http::patch('/v1/mock/projects/{projectId}/region')
+    ->desc('Update project region (development/testing only)')
+    ->groups(['mock'])
+    ->label('scope', 'public')
+    ->label('docs', false)
+    ->label('mock', true)
+    ->param('projectId', '', new UID(), 'Project ID.')
+    ->param('region', '', new Text(64), 'Region value to set on the project document.')
+    ->inject('response')
+    ->inject('dbForPlatform')
+    ->action(function (string $projectId, string $region, Response $response, Database $dbForPlatform) {
+        $isDevelopment = System::getEnv('_APP_ENV', 'development') === 'development';
+
+        if (!$isDevelopment) {
+            throw new Exception(Exception::GENERAL_NOT_IMPLEMENTED);
+        }
+
+        $project = $dbForPlatform->getDocument('projects', $projectId);
+
+        if ($project->isEmpty()) {
+            throw new Exception(Exception::PROJECT_NOT_FOUND);
+        }
+
+        $dbForPlatform->updateDocument(
+            'projects',
+            $project->getId(),
+            $project->setAttribute('region', $region)
+        );
+
+        $dbForPlatform->purgeCachedDocument('projects', $project->getId());
+
+        $response->json(['projectId' => $project->getId(), 'region' => $region]);
+    });
+
 Http::shutdown()
     ->groups(['mock'])
     ->inject('utopia')

tests/e2e/Services/Realtime/RealtimeBase.php

@@ -4,7 +4,6 @@ namespace Tests\E2E\Services\Realtime;
 
 use Tests\E2E\Client;
 use Utopia\Database\Helpers\ID;
-use Utopia\System\System;
 use WebSocket\Client as WebSocketClient;
 use WebSocket\ConnectionException;
 
@@ -156,12 +155,6 @@ trait RealtimeBase
 
     public function testConnectionFailureRegionMismatch(): void
     {
-        $serverRegion = System::getEnv('_APP_REGION', 'default');
-
-        if ($serverRegion === 'fra') {
-            $this->markTestSkipped('Test requires server region to not be "fra"');
-        }
-
         // Create a team for the mismatched-region project
         $team = $this->client->call(Client::METHOD_POST, '/teams', [
             'origin' => 'http://localhost',
@@ -176,7 +169,7 @@ trait RealtimeBase
         $this->assertEquals(201, $team['headers']['status-code']);
         $teamId = $team['body']['$id'];
 
-        // Create a project in the 'fra' region (which won't match the server's region)
+        // Create a project with the default (matching) region
         $project = $this->client->call(Client::METHOD_POST, '/projects', [
             'origin' => 'http://localhost',
             'content-type' => 'application/json',
@@ -184,7 +177,6 @@ trait RealtimeBase
             'x-appwrite-project' => 'console',
         ], [
             'projectId' => ID::unique(),
-            'region' => 'fra',
             'name' => 'Region Mismatch Project',
             'teamId' => $teamId,
         ]);
@@ -192,6 +184,17 @@ trait RealtimeBase
         $this->assertEquals(201, $project['headers']['status-code']);
         $projectId = $project['body']['$id'];
 
+        // Force a mismatched region directly in the DB via the mock endpoint (bypasses API validation)
+        $response = $this->client->call(Client::METHOD_PATCH, '/mock/projects/' . $projectId . '/region', [
+            'origin' => 'http://localhost',
+            'content-type' => 'application/json',
+            'x-appwrite-project' => $projectId,
+        ], [
+            'region' => 'mismatched-region',
+        ]);
+
+        $this->assertEquals(200, $response['headers']['status-code']);
+
         /**
          * Test for FAILURE
          * A project in a different region should be rejected with an access forbidden error.