Add repo access management for ext-apps, use-mcp, example-remote-client

- Add tarekgh to csharp-sdk with push permission
- Add ext-apps with mcp-apps-wg, mcp-apps-sdk teams and outside collaborators
- Add use-mcp with core-maintainers, moderators and geelen
- Add example-remote-client with core-maintainers, moderators and outside collaborators

This brings these previously unmanaged repos under centralized access control.

src/config/repoAccess.ts

@@ -205,6 +205,7 @@ export const REPOSITORY_ACCESS: RepositoryAccess[] = [
       { username: 'jozkee', permission: 'admin' },
       { username: 'localden', permission: 'admin' },
       { username: 'PederHP', permission: 'triage' },
+      { username: 'tarekgh', permission: 'push' },
     ],
   },
   {
@@ -307,6 +308,44 @@ export const REPOSITORY_ACCESS: RepositoryAccess[] = [
     repository: 'ext-auth',
     teams: [{ team: 'auth-wg', permission: 'admin' }],
   },
+  {
+    repository: 'ext-apps',
+    teams: [
+      { team: 'core-maintainers', permission: 'push' },
+      { team: 'moderators', permission: 'triage' },
+      { team: 'mcp-apps-wg', permission: 'admin' },
+      { team: 'mcp-apps-sdk', permission: 'admin' },
+    ],
+    users: [
+      { username: 'liady', permission: 'admin' },
+      { username: 'idosal', permission: 'admin' },
+      { username: 'ststrong', permission: 'admin' },
+      { username: 'martinalong', permission: 'push' },
+      { username: 'antonpk1', permission: 'admin' },
+      { username: 'conorkel', permission: 'admin' },
+      { username: 'alexi-openai', permission: 'admin' },
+    ],
+  },
+  {
+    repository: 'use-mcp',
+    teams: [
+      { team: 'core-maintainers', permission: 'push' },
+      { team: 'moderators', permission: 'triage' },
+    ],
+    users: [{ username: 'geelen', permission: 'admin' }],
+  },
+  {
+    repository: 'example-remote-client',
+    teams: [
+      { team: 'core-maintainers', permission: 'push' },
+      { team: 'moderators', permission: 'triage' },
+    ],
+    users: [
+      { username: 'geelen', permission: 'push' },
+      { username: 'markyfyi', permission: 'push' },
+      { username: 'jerryhong1', permission: 'push' },
+    ],
+  },
 ];
 
 // GitHub Projects V2 permissions are NOT managed by Pulumi - no support yet