feat(monitoring): improve network activity metrics with live domain request rates and backend identifiers

test/test.errors.ts

@@ -103,6 +103,9 @@ tap.test('ErrorHandler should properly handle and format errors', async () => {
     }, 'TEST_EXECUTION_ERROR', { operation: 'testExecution' });
   } catch (error) {
     expect(error).toBeInstanceOf(PlatformError);
+    if (!(error instanceof PlatformError)) {
+      throw error;
+    }
     expect(error.code).toEqual('TEST_EXECUTION_ERROR');
     expect(error.context.operation).toEqual('testExecution');
   }
@@ -197,6 +200,9 @@ tap.test('Error retry utilities should work correctly', async () => {
       }
     );
   } catch (error) {
+    if (!(error instanceof Error)) {
+      throw error;
+    }
     expect(error.message).toEqual('Critical error');
     expect(attempts).toEqual(1); // Should only attempt once
   }
@@ -262,6 +268,9 @@ tap.test('Error handling can be combined with retry for robust operations', asyn
     // Should not reach here
     expect(false).toEqual(true);
   } catch (error) {
+    if (!(error instanceof Error)) {
+      throw error;
+    }
     expect(error.message).toContain('Flaky failure');
     expect(flaky.counter).toEqual(3); // Initial + 2 retries = 3 attempts
   }