chore: remove legacy test_mock_platform.py

tests/test_mock_platform.py

@@ -1,71 +0,0 @@
-"""Тесты для MockPlatformClient — проверяем что заглушка работает корректно."""
-
-import pytest
-from src.mock_platform import MockPlatformClient, SessionNotFoundError
-
-
-@pytest.fixture
-def client():
-    return MockPlatformClient()
-
-
-@pytest.mark.asyncio
-async def test_create_session_returns_ids(client):
-    result = await client.create_session(user_id="tg-123", platform="telegram")
-
-    assert "session_id" in result
-    assert "agent_id" in result
-    assert "expires_at" in result
-
-
-@pytest.mark.asyncio
-async def test_send_message_returns_response(client):
-    session = await client.create_session(user_id="tg-123", platform="telegram")
-    result = await client.send_message(session["session_id"], "Привет!")
-
-    assert "response" in result
-    assert len(result["response"]) > 0
-    assert result["finished"] is True
-
-
-@pytest.mark.asyncio
-async def test_get_session_not_found_raises(client):
-    with pytest.raises(SessionNotFoundError):
-        await client.get_session("non-existent-id")
-
-
-@pytest.mark.asyncio
-async def test_close_session(client):
-    session = await client.create_session(user_id="tg-123", platform="telegram")
-    result = await client.close_session(session["session_id"])
-
-    assert result is True
-
-    # Повторное закрытие — уже закрыта
-    result2 = await client.close_session(session["session_id"])
-    assert result2 is False
-
-
-@pytest.mark.asyncio
-async def test_get_or_create_user(client):
-    user = await client.get_or_create_user(
-        external_id="12345",
-        platform="telegram",
-        display_name="Test User",
-    )
-
-    assert user["user_id"].startswith("user-telegram-")
-    assert user["external_id"] == "12345"
-    assert user["platform"] == "telegram"
-
-
-@pytest.mark.asyncio
-async def test_message_history(client):
-    session = await client.create_session(user_id="tg-123", platform="telegram")
-    sid = session["session_id"]
-
-    await client.send_message(sid, "Первое сообщение")
-    await client.send_message(sid, "Второе сообщение")
-
-    history = await client.get_message_history(sid, limit=10)
-    assert len(history) == 2