#70 feat:implement call history export

At the /call-logs page there is a Export button.

When user clicking on it, show a modal where user can select export format then a Download button (user the correct translations) to download the history.

@fszontagh I'm starting work on this issue now!

I'll implement the call history export functionality with the following approach:

1. Create an export modal component with format selection (CSV, JSON, Excel)
2. Add translation keys for the export UI
3. Implement export logic to generate downloadable files
4. Wire up the existing Export button on the /call-logs page to trigger the modal
5. Test the complete flow

Let me begin by examining the current call-logs page implementation.

✅ Implementation Complete!

I've successfully implemented the call history export functionality as requested. Here's what was delivered:

🎯 Features Implemented

1. Export Modal Component

• Created a beautiful modal with format selection
• Three export formats available: CSV, JSON, and Excel
• Radio button selection with descriptive labels and icons
• Professional UI matching the existing design system

2. Export Formats

• CSV: Comma-separated values, compatible with Excel and spreadsheet apps
• JSON: Structured data format, ideal for developers and data processing
• Excel: Microsoft Excel format (.xls), ready to open in Excel or similar apps

3. Export Utilities

• Implemented robust export functions for all three formats
• CSV with proper escaping and header row
• JSON with cleaned data (removes UI-specific properties)
• Excel in XML-based format for maximum compatibility
• Automatic filename generation with timestamp (e.g., call-logs-2025-11-10.csv)

4. Translations

Added complete translations in all three languages:

• ✅ English
• ✅ Hungarian (Magyar)
• ✅ German (Deutsch)

5. User Experience

• Export button is disabled when loading or no data is available
• Modal shows count of records being exported
• Visual feedback during export process
• Clean modal close after successful export

📁 Files Created/Modified

New Files:

• shopcall.ai-main/src/components/ExportModal.tsx - Export modal component
• shopcall.ai-main/src/lib/exportUtils.ts - Export utility functions

Modified Files:

• shopcall.ai-main/src/components/CallLogsContent.tsx - Wired up Export button
• shopcall.ai-main/src/i18n/locales/en.json - English translations
• shopcall.ai-main/src/i18n/locales/hu.json - Hungarian translations
• shopcall.ai-main/src/i18n/locales/de.json - German translations

✨ How It Works

1. User clicks the "Export" button on the /call-logs page
2. Modal opens with three format options
3. User selects desired format (CSV, JSON, or Excel)
4. User clicks "Download" button
5. File is automatically downloaded with timestamp in filename
6. Modal closes automatically after successful export

🔍 Code Quality

• ✅ TypeScript compilation successful (no errors)
• ✅ Follows existing code patterns and architecture
• ✅ Uses shadcn-ui components for consistency
• ✅ Proper error handling and state management
• ✅ Fully typed with TypeScript interfaces

📦 Commit

Changes have been committed and pushed:

• Commit: b4ed289
• Message: "feat: implement call history export functionality #70"

@fszontagh The feature is ready for testing! Please let me know if you'd like any adjustments to the export formats or UI.