feat: 初始化知识库系统项目

- 实现基于 Laravel 11 和 Filament 3.X 的文档管理系统
- 添加用户认证和分组管理功能
- 实现文档上传、分类和权限控制
- 集成 Word 文档自动转换为 Markdown
- 集成 Meilisearch 全文搜索引擎
- 实现文档在线预览功能
- 添加安全日志和审计功能
- 完整的简体中文界面
- 包含完整的项目文档和部署指南

技术栈:
- Laravel 11.x
- Filament 3.X
- Meilisearch 1.5+
- Pandoc 文档转换
- Redis 队列系统
- Pest PHP 测试框架

tests/Feature/DocumentServiceTest.php

@@ -0,0 +1,117 @@
+<?php
+
+use App\Models\Document;
+use App\Models\Group;
+use App\Models\User;
+use App\Services\DocumentService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Facades\Storage;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    Storage::fake('local');
+    $this->service = new DocumentService();
+});
+
+test('可以上传有效的 Word 文档', function () {
+    $user = User::factory()->create();
+    $file = UploadedFile::fake()->create('test.docx', 100, 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
+    
+    $document = $this->service->uploadDocument(
+        $file,
+        '测试文档',
+        'global',
+        null,
+        $user->id
+    );
+    
+    expect($document)->toBeInstanceOf(Document::class);
+    expect($document->title)->toBe('测试文档');
+    expect($document->type)->toBe('global');
+    expect($document->uploaded_by)->toBe($user->id);
+});
+
+test('上传非 Word 文档应该抛出异常', function () {
+    $user = User::factory()->create();
+    $file = UploadedFile::fake()->create('test.pdf', 100, 'application/pdf');
+    
+    $this->service->uploadDocument(
+        $file,
+        '测试文档',
+        'global',
+        null,
+        $user->id
+    );
+})->throws(\InvalidArgumentException::class, '文件格式不支持，请上传 Word 文档（.doc 或 .docx）');
+
+test('专用文档没有分组应该抛出异常', function () {
+    $user = User::factory()->create();
+    $file = UploadedFile::fake()->create('test.docx', 100, 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
+    
+    $this->service->uploadDocument(
+        $file,
+        '测试文档',
+        'dedicated',
+        null,
+        $user->id
+    );
+})->throws(\InvalidArgumentException::class, '专用知识库文档必须指定所属分组');
+
+test('用户可以访问全局文档', function () {
+    $user = User::factory()->create();
+    $document = Document::factory()->global()->create();
+    
+    $hasAccess = $this->service->validateDocumentAccess($document, $user);
+    
+    expect($hasAccess)->toBeTrue();
+});
+
+test('用户可以访问自己分组的专用文档', function () {
+    $group = Group::factory()->create();
+    $user = User::factory()->create();
+    $user->groups()->attach($group->id);
+    
+    $document = Document::factory()->dedicated($group->id)->create();
+    
+    $hasAccess = $this->service->validateDocumentAccess($document, $user);
+    
+    expect($hasAccess)->toBeTrue();
+});
+
+test('用户不能访问其他分组的专用文档', function () {
+    $group1 = Group::factory()->create();
+    $group2 = Group::factory()->create();
+    $user = User::factory()->create();
+    $user->groups()->attach($group1->id);
+    
+    $document = Document::factory()->dedicated($group2->id)->create();
+    
+    $hasAccess = $this->service->validateDocumentAccess($document, $user);
+    
+    expect($hasAccess)->toBeFalse();
+});
+
+test('可以记录文档下载日志', function () {
+    $user = User::factory()->create();
+    $document = Document::factory()->global()->create();
+    
+    $log = $this->service->logDownload($document, $user, '127.0.0.1');
+    
+    expect($log->document_id)->toBe($document->id);
+    expect($log->user_id)->toBe($user->id);
+    expect($log->ip_address)->toBe('127.0.0.1');
+    expect($log->downloaded_at)->not->toBeNull();
+});
+
+test('下载文档时验证权限', function () {
+    $group = Group::factory()->create();
+    $user = User::factory()->create();
+    // 用户不属于该分组
+    
+    $document = Document::factory()->dedicated($group->id)->create();
+    
+    $this->service->downloadDocument($document, $user);
+})->throws(\Exception::class, '您没有权限访问此文档');
+