fix(objectql): use proper kernel.use() API in createObjectQLKernel factory

Removed `as any` type assertion and use the proper async kernel.use()
API for registering plugins with ObjectKernel.

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

.changeset/upgrade-objectql-core.md

@@ -0,0 +1,11 @@
+---
+'@objectstack/objectql': minor
+---
+
+feat(objectql): add utility functions, introspection types, and kernel factory
+
+Upstream key functionality from downstream `@objectql/core` to enable its future deprecation:
+
+- **Introspection types**: `IntrospectedSchema`, `IntrospectedTable`, `IntrospectedColumn`, `IntrospectedForeignKey`
+- **Utility functions**: `toTitleCase()`, `convertIntrospectedSchemaToObjects()`
+- **Kernel factory**: `createObjectQLKernel()` with `ObjectQLKernelOptions`

packages/objectql/src/kernel-factory.ts

@@ -31,9 +31,18 @@ export interface ObjectQLKernelOptions {
  * await kernel.bootstrap();
  * ```
  */
-export function createObjectQLKernel(options: ObjectQLKernelOptions = {}): ObjectKernel {
-  return new (ObjectKernel as any)([
-    new ObjectQLPlugin(),
-    ...(options.plugins || []),
-  ]);
+export async function createObjectQLKernel(options: ObjectQLKernelOptions = {}): Promise<ObjectKernel> {
+  const kernel = new ObjectKernel();
+
+  // Register the core ObjectQLPlugin first
+  await kernel.use(new ObjectQLPlugin());
+
+  // Register any additional plugins
+  if (options.plugins) {
+    for (const plugin of options.plugins) {
+      await kernel.use(plugin);
+    }
+  }
+
+  return kernel;
 }