Massive v2 rewrite

.tests/teardown.js

@@ -0,0 +1,43 @@
+// Jest teardown file - runs after all tests complete
+// This helps prevent async operations from continuing after Jest environment teardown
+
+// Global teardown to ensure clean test environment shutdown
+module.exports = async () => {
+  // Clear all timers first
+  if (typeof global.clearAllTimers === 'function') {
+    global.clearAllTimers();
+  }
+  
+  // Clear any pending setImmediate calls
+  if (global.pendingImmediates) {
+    global.pendingImmediates.forEach(id => clearImmediate(id));
+    global.pendingImmediates.clear();
+  }
+  
+  // Force close any remaining handles
+  if (process._getActiveHandles) {
+    const handles = process._getActiveHandles();
+    handles.forEach(handle => {
+      if (handle && typeof handle.close === 'function') {
+        try {
+          handle.close();
+        } catch (e) {
+          // Ignore errors during forced cleanup
+        }
+      }
+    });
+  }
+  
+  // Force garbage collection if available
+  if (global.gc) {
+    global.gc();
+  }
+  
+  // Add a small delay to allow any pending async operations to complete
+  await new Promise(resolve => setTimeout(resolve, 50));
+  
+  // Clear any remaining console overrides
+  if (global.originalConsole) {
+    Object.assign(console, global.originalConsole);
+  }
+};