fix: resolve production ID case-sensitivity and SQL Server compatibility issues

- Add getTableName() method to convert MySQL table names to SQL Server format
- Use queryWithParams with sql.NVarChar for proper SQL Server parameter handling
- Implement case-insensitive matching for production IDs (e.g., 26b10433 vs 26B10433)
- Align resolver logic with validation-handler.ts for consistent database queries

Co-Authored-By: Claude (glm-5) <noreply@anthropic.com>

src/main/services/erp/extractor-core.ts

@@ -0,0 +1,204 @@
+import path from 'path'
+import { ERP_LOCATORS } from './locators'
+import type { ErpSession } from '../../types/erp.types'
+import type { ExtractorCoreInput, ExtractorCoreResult } from '../../types/extractor.types'
+
+/**
+ * ExtractorCore - Handles all web page operations for data extraction
+ * This class is responsible only for web interactions, not file processing
+ *
+ * Note: Uses 'any' for Frame types to maintain compatibility with Playwright's
+ * frame handling API, matching the original implementation.
+ */
+export class ExtractorCore {
+  /**
+   * Execute all web page operations and return downloaded file paths
+   * @param input - Contains session, order numbers, download directory, batch size, and progress callback
+   * @returns List of downloaded file paths and any errors encountered
+   */
+  async downloadAllBatches(input: ExtractorCoreInput): Promise<ExtractorCoreResult> {
+    const result: ExtractorCoreResult = {
+      downloadedFiles: [],
+      errors: []
+    }
+
+    // Navigate to extractor page and get popup page + work frame
+    const { popupPage, workFrame } = await this.navigateToExtractorPage(input.session)
+
+    // Process orders in batches
+    const batches = this.createBatches(input.orderNumbers, input.batchSize)
+
+    for (let i = 0; i < batches.length; i++) {
+      const batch = batches[i]
+      const progress = ((i + 1) / batches.length) * 100
+
+      input.onProgress?.(`Processing batch ${i + 1}/${batches.length}`, progress)
+
+      try {
+        const filePath = await this.downloadBatch(
+          input.session,
+          popupPage,
+          workFrame,
+          batch,
+          i,
+          batches.length,
+          input.downloadDir
+        )
+        result.downloadedFiles.push(filePath)
+      } catch (error) {
+        const message = error instanceof Error ? error.message : 'Unknown error'
+        result.errors.push(`Batch ${i + 1}: ${message}`)
+      }
+    }
+
+    return result
+  }
+
+  /**
+   * Navigate to extractor/query page
+   * Reference: Python extract() method lines 266-278
+   *
+   * Python workflow:
+   * 1. main_frame.locator("i").first.click() - Click menu icon
+   * 2. page.expect_popup() + get_by_title("离散备料计划维护").click() - Click menu item and wait for popup
+   * 3. page1.locator("#forwardFrame").content_frame - Get popup's forward frame
+   * 4. f_frame.locator("#mainiframe").content_frame - Get nested inner frame
+   * 5. setup_query_interface(work_frame) - Setup query interface
+   */
+  private async navigateToExtractorPage(
+    session: ErpSession
+  ): Promise<{ popupPage: any; workFrame: any }> {
+    const { page, mainFrame } = session
+
+    // Step 1: Click menu icon (Python line 266)
+    // main_frame is #forwardFrame.content_frame returned from login
+    await mainFrame.locator('i').first().click()
+
+    // Step 2: Click discrete material plan menu item and expect popup (Python lines 267-271)
+    const popupPromise = page.waitForEvent('popup')
+    await mainFrame.getByTitle('离散备料计划维护', { exact: true }).first().click()
+    const popupPage = await popupPromise
+
+    // Step 3 & 4: Get nested frame structure in popup window (Python lines 273-276)
+    // popup page contains #forwardFrame, which contains #mainiframe
+    const forwardFrameLocator = popupPage.locator('#forwardFrame')
+    const fFrame = await forwardFrameLocator.contentFrame()
+
+    if (!fFrame) {
+      throw new Error('Failed to access popup forward frame')
+    }
+
+    const innerFrameLocator = fFrame.locator('#mainiframe')
+    await innerFrameLocator.waitFor({ state: 'visible', timeout: 15000 })
+    const workFrame = await innerFrameLocator.contentFrame()
+
+    if (!workFrame) {
+      throw new Error('Failed to access inner work frame')
+    }
+
+    // Step 5: Setup query interface (Python line 278)
+    await this.setupQueryInterface(workFrame)
+
+    return { popupPage, workFrame }
+  }
+
+  /**
+   * Setup query interface
+   * Reference: Python setup_query_interface() method lines 231-239
+   */
+  private async setupQueryInterface(innerFrame: any): Promise<void> {
+    // Click search icon (Python line 233)
+    await innerFrame.locator('.search-name-wrapper > .iconfont').click()
+
+    // Click "订单号查询" menu item (Python line 234)
+    await innerFrame.getByText('订单号查询').click()
+
+    // Click "全部" tab (Python line 235)
+    await innerFrame.getByRole('tab', { name: '全部' }).click()
+
+    // Set limit to 5000 (Python lines 237-239)
+    const inputBox = innerFrame.locator('#rc_select_0')
+    await inputBox.fill('5000')
+    await inputBox.press('Enter')
+  }
+
+  /**
+   * Download a single batch of orders
+   * Reference: Python download_batch() method lines 133-175
+   */
+  private async downloadBatch(
+    session: ErpSession,
+    popupPage: any,
+    workFrame: any,
+    orderNumbers: string[],
+    batchIndex: number,
+    totalBatches: number,
+    downloadDir: string
+  ): Promise<string> {
+    // Fill order numbers (Python lines 143-145)
+    const textbox = workFrame.getByRole('textbox', { name: '来源生产订单号' })
+    await textbox.fill('')
+    await textbox.fill(orderNumbers.join(','))
+
+    // Click search button (Python line 147)
+    await workFrame.locator('.search-component-searchBtn').click()
+
+    // Wait for loading (Python lines 148-153)
+    await this.waitForLoading(workFrame)
+
+    // Click first row checkbox (Python line 155)
+    await workFrame.getByRole('row', { name: '序号' }).getByLabel('').click()
+
+    // Hover and click "更多" button (Python lines 156-157)
+    await workFrame.getByRole('button', { name: '更多' }).hover()
+    await workFrame.getByText('输出', { exact: true }).click()
+
+    // Set threshold (Python lines 159-164)
+    const thresholdBox = workFrame
+      .locator('div')
+      .filter({ hasText: /^行数阈值$/ })
+      .locator('input[type="text"]')
+    await thresholdBox.fill('300000')
+
+    // Setup download handler and click confirm (Python lines 166-172)
+    const downloadPath = path.join(downloadDir, `temp_batch_${batchIndex + 1}.xlsx`)
+
+    const downloadPromise = popupPage.waitForEvent('download')
+    await workFrame.getByRole('button', { name: '确定(Y)' }).click()
+
+    const download = await downloadPromise
+    await download.saveAs(downloadPath)
+
+    return downloadPath
+  }
+
+  /**
+   * Wait for loading overlay to disappear
+   * Reference: Python lines 148-153
+   */
+  private async waitForLoading(workFrame: any): Promise<void> {
+    const loadingLocator = workFrame
+      .locator('div')
+      .filter({ hasText: ERP_LOCATORS.extractor.loadingText })
+      .nth(1)
+
+    try {
+      await loadingLocator.waitFor({ state: 'visible', timeout: 3000 })
+      await loadingLocator.waitFor({ state: 'hidden', timeout: 0 })
+    } catch {
+      // Loading completed quickly or never appeared
+    }
+  }
+
+  /**
+   * Split array into batches
+   * Reference: Python group_order_ids() method lines 128-131
+   */
+  private createBatches<T>(items: T[], batchSize: number): T[][] {
+    const batches: T[][] = []
+    for (let i = 0; i < items.length; i += batchSize) {
+      batches.push(items.slice(i, i + batchSize))
+    }
+    return batches
+  }
+}