feat(assistant): add multi-dialog UX, task-aware llm settings, and i18n cleanup

backend/src/api/routes/__tests__/test_assistant_api.py

@@ -218,6 +218,29 @@ def test_unknown_command_returns_needs_clarification():
 
 
 # [/DEF:test_unknown_command_returns_needs_clarification:Function]
+
+
+# [DEF:test_capabilities_question_returns_successful_help:Function]
+# @PURPOSE: Capability query should return deterministic help response, not clarification.
+# @PRE: User sends natural-language "what can you do" style query.
+# @POST: Response is successful and includes capabilities summary.
+def test_capabilities_question_returns_successful_help():
+    _clear_assistant_state()
+    response = _run_async(
+        assistant_module.send_message(
+            request=assistant_module.AssistantMessageRequest(message="Что ты умеешь?"),
+            current_user=_admin_user(),
+            task_manager=_FakeTaskManager(),
+            config_manager=_FakeConfigManager(),
+            db=_FakeDb(),
+        )
+    )
+    assert response.state == "success"
+    assert "Вот что я могу сделать" in response.text
+    assert "Миграции" in response.text or "Git" in response.text
+
+
+# [/DEF:test_capabilities_question_returns_successful_help:Function]
 # [DEF:test_non_admin_command_returns_denied:Function]
 # @PURPOSE: Non-admin user must receive denied state for privileged command.
 # @PRE: Limited principal executes privileged git branch command.