ci: use hosted runner for public tests

Author: evolver-publish

.github/workflows/test.yml

@@ -2,13 +2,13 @@ name: test
 
 # Runs PR governance checks and the Node test suite.
 #
-# Pull requests use pull_request_target on self-hosted Linux runners and only
-# execute trusted base-branch code against PR metadata. They intentionally do not
-# checkout, install, or test PR-controlled code on the self-hosted runner.
-# Pushes to main run the full Node suite on the merged repository state.
+# Pull requests use pull_request_target and only execute trusted base-branch code
+# against PR metadata. They intentionally do not checkout, install, or test
+# PR-controlled code. Pushes to main run the full Node suite on the merged
+# repository state.
 #
-# Cross-platform Windows/macOS coverage remains a future advisory lane once it
-# can run on available self-hosted runners or an explicitly funded hosted pool.
+# Use GitHub-hosted Ubuntu runners so the public repository can run tests without
+# depending on private org-level self-hosted runner group access.
 
 on:
   pull_request_target:
@@ -25,7 +25,7 @@ concurrency:
 
 jobs:
   test:
-    runs-on: [self-hosted, Linux, X64]
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout trusted base for PR guard
         if: github.event_name == 'pull_request_target'