ci: verify registry usage

.github/workflows/test.yml

@@ -196,9 +196,24 @@ jobs:
 
       - name: Install from default registry
         run: |
-          bun add is-odd --verbose --force
+          output=$(bun add is-odd --verbose --force 2>&1)
+          echo "$output"
+
+          if echo "$output" | grep -q "HTTP/1.1 GET https://registry.npmjs.org/is-odd"; then
+            echo "Successfully installed from default registry"
+          else
+            echo "Failed to install from default registry"
+            exit 1
+          fi
 
       - name: Install from @types registry
-        id: run_bun
         run: |
-          bun add @types/bun --verbose --force
+          output=$(bun add @types/bun --verbose --force)
+          echo "$output"
+
+          if echo "$output" | grep -q "HTTP/1.1 GET https://registry.yarnpkg.com/@types/bun"; then
+            echo "Successfully installed from @types registry"
+          else
+            echo "Failed to install from @types registry"
+            exit 1
+          fi