feat: 实现测试数据生成器完整功能

- 添加类型定义 (FieldConfig, DataRule, GeneratorDefinition 等)
- 实现 21 个数据生成器 (个人信息/业务数据/技术数据/基础类型)
- 实现 Web Worker 后台数据生成引擎
- 实现规则存储与管理功能
- 实现 JSON/CSV 数据导出功能
- 开发完整 UI 组件 (字段管理/生成器选择/数据预览/导出面板等)
- 集成到应用功能配置，添加国际化支持

功能特性:
- 实时预览生成的数据
- 字段配置 (名称/描述/必填/空值率/唯一性约束)
- 规则管理 (保存/加载/搜索/导入导出)
- Web Worker 后台生成，支持进度显示和取消
- 响应式布局，支持多种设备

docs: 更新 TASKS.md 所有子任务复选框为已完成状态

src/workers/generator.worker.ts

@@ -0,0 +1,165 @@
+/**
+ * 测试数据生成器 Web Worker
+ * 在后台线程中执行数据生成，避免阻塞 UI
+ */
+
+import { getGeneratorById } from '@/lib/generators';
+import type {
+  FieldConfig,
+  WorkerMessage,
+  GenerateResult,
+  GenerateProgress,
+} from '@/types/testDataGenerator';
+
+// 生成结果缓存
+let generatedData: Record<string, unknown>[] = [];
+let isCancelled = false;
+
+/**
+ * Worker 消息处理器
+ */
+self.onmessage = async (e: MessageEvent<WorkerMessage>) => {
+  const data = e.data;
+  const { type } = data;
+
+  switch (type) {
+    case 'start':
+      isCancelled = false;
+      await handleStart(data.payload);
+      break;
+    case 'cancel':
+      isCancelled = true;
+      break;
+  }
+};
+
+/**
+ * 处理开始生成消息
+ */
+async function handleStart(payload: {
+  fields: FieldConfig[];
+  count: number;
+  csvMode: boolean;
+}): Promise<void> {
+  const { fields, count } = payload;
+  generatedData = [];
+
+  try {
+    // 验证所有生成器是否存在
+    for (const field of fields) {
+      const generator = getGeneratorById(field.generatorId);
+      if (!generator) {
+        self.postMessage({
+          type: 'error',
+          payload: { error: `生成器 "${field.generatorId}" 不存在` },
+        });
+        return;
+      }
+    }
+
+    const startTime = Date.now();
+    const warnings: string[] = [];
+
+    // 生成数据
+    for (let i = 0; i < count; i++) {
+      if (isCancelled) {
+        self.postMessage({
+          type: 'complete',
+          payload: {
+            success: false,
+            error: '生成已取消',
+          },
+        });
+        return;
+      }
+
+      const record: Record<string, unknown> = {};
+
+      for (const field of fields) {
+        const generator = getGeneratorById(field.generatorId);
+        if (!generator) continue;
+
+        // 空值率控制
+        if (!field.required && Math.random() * 100 < field.nullRate) {
+          record[field.name] = null;
+          continue;
+        }
+
+        try {
+          // 唯一性约束处理
+          if (field.unique) {
+            let value: string | undefined;
+            const maxRetries = 100;
+            let retryCount = 0;
+
+            // 小数据量：随机生成 + 重试
+            if (count <= 1000) {
+              while (retryCount < maxRetries) {
+                value = generator.generate(field.params);
+                const isUnique = !generatedData.some((item) => item[field.name] === value);
+                if (isUnique) break;
+                retryCount++;
+                value = undefined;
+              }
+            } else {
+              // 大数据量：使用索引生成策略
+              if (generator.generateAtIndex) {
+                value = generator.generateAtIndex(field.params, i);
+              } else {
+                // 回退到随机生成
+                value = generator.generate(field.params);
+              }
+            }
+
+            if (value !== undefined) {
+              record[field.name] = value;
+            } else {
+              warnings.push(`字段 "${field.name}" 第 ${i + 1} 行唯一值生成失败`);
+              record[field.name] = generator.generate(field.params);
+            }
+          } else {
+            record[field.name] = generator.generate(field.params);
+          }
+        } catch (error) {
+          warnings.push(`字段 "${field.name}" 第 ${i + 1} 行生成错误: ${error}`);
+          record[field.name] = null;
+        }
+      }
+
+      generatedData.push(record);
+
+      // 进度回调（每1000条）
+      if ((i + 1) % 1000 === 0 || i === count - 1) {
+        const progress: GenerateProgress = {
+          progress: Math.round(((i + 1) / count) * 100),
+          generated: i + 1,
+          total: count,
+          estimatedTimeLeft: Math.round(((Date.now() - startTime) / (i + 1)) * (count - i - 1)),
+        };
+        self.postMessage({ type: 'progress', payload: progress });
+      }
+    }
+
+    const duration = Date.now() - startTime;
+    const successCount = generatedData.filter((item) => Object.keys(item).length > 0).length;
+
+    const result: GenerateResult = {
+      success: true,
+      data: generatedData,
+      warnings: warnings.length > 0 ? warnings : undefined,
+      stats: {
+        total: count,
+        success: successCount,
+        failed: count - successCount,
+        duration,
+      },
+    };
+
+    self.postMessage({ type: 'complete', payload: result });
+  } catch (error) {
+    self.postMessage({
+      type: 'error',
+      payload: { error: `生成失败: ${error}` },
+    });
+  }
+}