Refactor auth-related files and clean up spec package

Moved authentication, identity, policy, protocol, and role zod schemas from 'system' to a new 'auth' directory. Added an 'auth/index.ts' barrel file. Updated imports in 'index.ts' and 'system/index.ts'. Removed QUERY_PROTOCOL_GUIDE.md and package-lock.json for cleanup.

Author: hotlong

packages/spec/QUERY_PROTOCOL_GUIDE.md

@@ -21,6 +21,10 @@
       "types": "./dist/system/index.d.ts",
       "default": "./dist/system/index.js"
     },
+    "./auth": {
+      "types": "./dist/auth/index.d.ts",
+      "default": "./dist/auth/index.js"
+    },
     "./kernel": {
       "types": "./dist/kernel/index.d.ts",
       "default": "./dist/kernel/index.js"

packages/spec/package-lock.json

@@ -0,0 +1,5 @@
+export * from './config.zod';
+export * from './identity.zod';
+export * from './policy.zod';
+export * from './protocol';
+export * from './role.zod';

packages/spec/package.json

@@ -10,26 +10,27 @@
  * 
  * ### Style 1: Namespace Imports from Root
  * ```typescript
- * import { Data, UI, System, AI, API } from '@objectstack/spec';
+ * import { Data, UI, System, Auth, AI, API } from '@objectstack/spec';
  * 
  * const field: Data.Field = { name: 'task_name', type: 'text' };
- * const user: System.User = { id: 'u1', email: 'user@example.com' };
+ * const user: Auth.User = { id: 'u1', email: 'user@example.com' };
  * ```
  * 
  * ### Style 2: Namespace Imports via Subpath
  * ```typescript
  * import * as Data from '@objectstack/spec/data';
  * import * as UI from '@objectstack/spec/ui';
  * import * as System from '@objectstack/spec/system';
+ * import * as Auth from '@objectstack/spec/auth';
  * 
  * const field: Data.Field = { name: 'task_name', type: 'text' };
- * const user: System.User = { id: 'u1', email: 'user@example.com' };
+ * const user: Auth.User = { id: 'u1', email: 'user@example.com' };
  * ```
  * 
  * ### Style 3: Direct Subpath Imports
  * ```typescript
  * import { Field, FieldType } from '@objectstack/spec/data';
- * import { User, Session } from '@objectstack/spec/system';
+ * import { User, Session } from '@objectstack/spec/auth';
  * 
  * const field: Field = { name: 'task_name', type: 'text' };
  * const user: User = { id: 'u1', email: 'user@example.com' };
@@ -46,6 +47,7 @@ export * as Driver from './driver';
 export * as Permission from './permission';
 export * as UI from './ui';
 export * as System from './system';
+export * as Auth from './auth';
 export * as Kernel from './kernel';
 export * as Hub from './hub';
 export * as AI from './ai';