Add voice name flow controls and analytics

tests/test_demo_ready_scripts.py

@@ -54,6 +54,23 @@ def test_demo_seed_plan_contains_demo_keyword():
     assert plan["ivr_kz_menu_prompt"] == "Сату бөлімі үшін 1 басыңыз. Қолдау қызметі үшін 2 басыңыз."
 
 
+def test_demo_ivr_flow_routes_language_to_voice_start_queues():
+    plan = demo_seed.build_seed_plan("TAG123")
+    flow = demo_seed._demo_ivr_flow_document(
+        plan,
+        voice_start_kz_queue_id="que_kz",
+        voice_start_ru_queue_id="que_ru",
+    )
+
+    root = flow["nodes"][0]
+    assert root["options"] == [
+        {"digit": "1", "target_node_id": "voice_start_kz"},
+        {"digit": "2", "target_node_id": "voice_start_ru"},
+    ]
+    assert flow["nodes"][1]["resolved_queue_code"] == "voice_start_ru"
+    assert flow["nodes"][2]["resolved_queue_code"] == "voice_start_kz"
+
+
 def test_prepare_demo_script_resets_local_data_and_prints_backstage_hints():
     script = (Path(__file__).resolve().parents[1] / "scripts" / "prepare_demo.ps1").read_text(encoding="utf-8")