feat: add export job tracking to Letzshop jobs tab

- Export operations now create LetzshopSyncLog entries with type 'product_export'
- Added log_export method to LetzshopExportService (follows architecture rules)
- Updated list_letzshop_jobs to include export jobs
- Added export filter option back to jobs dropdown
- Export jobs display with blue badge and cloud-upload icon

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/api/v1/admin/vendors.py

@@ -390,6 +390,7 @@ def export_vendor_products_letzshop_to_folder(
         JSON with export status and file paths
     """
     import os
+    from datetime import UTC, datetime
     from pathlib import Path as FilePath
 
     from app.services.letzshop_export_service import letzshop_export_service
@@ -398,12 +399,17 @@ def export_vendor_products_letzshop_to_folder(
 
     include_inactive = request.include_inactive if request else False
 
+    # Track export start time
+    started_at = datetime.now(UTC)
+
     # Create export directory
     export_dir = FilePath(f"exports/letzshop/{vendor.vendor_code.lower()}")
     export_dir.mkdir(parents=True, exist_ok=True)
 
     exported_files = []
     languages = ["fr", "de", "en"]
+    total_records = 0
+    failed_count = 0
 
     for lang in languages:
         try:
@@ -420,6 +426,11 @@ def export_vendor_products_letzshop_to_folder(
             with open(filepath, "w", encoding="utf-8") as f:
                 f.write(csv_content)
 
+            # Count lines (minus header)
+            line_count = csv_content.count("\n")
+            if line_count > 0:
+                total_records = max(total_records, line_count - 1)
+
             exported_files.append({
                 "language": lang,
                 "filename": filename,
@@ -427,11 +438,27 @@ def export_vendor_products_letzshop_to_folder(
                 "size_bytes": os.path.getsize(filepath),
             })
         except Exception as e:
+            failed_count += 1
             exported_files.append({
                 "language": lang,
                 "error": str(e),
             })
 
+    # Log the export operation via service
+    completed_at = datetime.now(UTC)
+    letzshop_export_service.log_export(
+        db=db,
+        vendor_id=vendor.id,
+        started_at=started_at,
+        completed_at=completed_at,
+        records_processed=total_records,
+        languages_succeeded=len(languages) - failed_count,
+        languages_failed=failed_count,
+        triggered_by=f"admin:{current_admin.id}",
+        error_details={"files": exported_files} if failed_count > 0 else None,
+    )
+    db.commit()
+
     return {
         "success": True,
         "message": f"Exported {len([f for f in exported_files if 'error' not in f])} language(s) to {export_dir}",