Refactor driver module structure and add driver schemas

- Moved Driver exports to the System module in index.ts
- Added driver capabilities and interface schemas in driver.zod.ts
- Implemented MongoDB and PostgreSQL driver configuration schemas
- Created comprehensive tests for driver capabilities and interface
- Established a new driver test suite to validate CRUD and transaction operations

Author: hotlong

packages/driver-memory/src/memory-driver.ts

@@ -1,5 +1,5 @@
 import { QueryAST, QueryInput } from '@objectstack/spec/data';
-import { DriverInterface, DriverOptions } from '@objectstack/spec/driver';
+import { DriverInterface, DriverOptions } from '@objectstack/spec/system';
 
 /**
  * Example: In-Memory Driver

packages/objectql/src/index.ts

@@ -1,6 +1,6 @@
 import { QueryAST, HookContext } from '@objectstack/spec/data';
 import { ObjectStackManifest } from '@objectstack/spec/system';
-import { DriverInterface, DriverOptions } from '@objectstack/spec/driver';
+import { DriverInterface, DriverOptions } from '@objectstack/spec/system';
 import { SchemaRegistry } from './registry';
 
 // Export Registry for consumers

packages/spec/src/driver/index.ts

@@ -44,7 +44,8 @@
 // and establish clear boundaries between different protocol layers.
 export * as Shared from './shared';
 export * as Data from './data';
-export * as Driver from './driver';
+// Driver moved to System
+// export * as Driver from './driver';
 export * as Permission from './permission';
 export * as UI from './ui';
 export * as System from './system';

packages/spec/src/index.ts

@@ -20,5 +20,10 @@ export * from './logger.zod';
 export * from './context.zod';
 export * from './scoped-storage.zod';
 export * from './datasource.zod';
+
+// Driver Protocol
+export * from './driver.zod';
+export * from './driver/mongo.zod';
+export * from './driver/postgres.zod';
 // Note: Auth, Identity, Policy, Role, Organization moved to @objectstack/spec/auth
 // Note: Territory moved to @objectstack/spec/permission