Add service catalogue Excel export and duplicate review

app/modules/services/ui.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from datetime import datetime, timezone
+
 from fastapi import APIRouter, File, Form, Request, UploadFile
 from fastapi.responses import FileResponse, RedirectResponse, StreamingResponse
 from sqlalchemy import select
@@ -30,6 +32,7 @@ from app.modules.services.due_dates import (
     list_due_rules,
     parse_optional_date,
 )
+from app.modules.services.catalogue_export import build_service_catalogue_export
 from app.modules.services.task_documents import (
     create_task_document_requirement,
     get_task_document_requirement,
@@ -332,6 +335,28 @@ def catalogue_list(request: Request, q: str = '', category_id: int | None = None
         db.close()
 
 
+@router.get('/catalogue/export')
+def catalogue_export(request: Request):
+    db = CommonSessionLocal()
+    try:
+        user = get_current_user(request, db=db)
+        if not user:
+            return RedirectResponse(url='/login', status_code=303)
+        if not _is_system_admin(db, user):
+            return _redirect_denied()
+        require_permission(db, user, 'services.view')
+
+        workbook_bytes = build_service_catalogue_export(db)
+        filename = f"service_catalogue_export_{datetime.now(timezone.utc).strftime('%Y%m%d_%H%M%S')}.xlsx"
+        return StreamingResponse(
+            iter([workbook_bytes]),
+            media_type='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            headers={'Content-Disposition': f'attachment; filename="{filename}"'},
+        )
+    finally:
+        db.close()
+
+
 @router.get('/catalogue/new')
 def catalogue_create_page(request: Request):
     db = CommonSessionLocal()