[Refactor][CI] Reorganize test tree, and move slow e2e to weekly (#4951)

Signed-off-by: wangyu <410167048@qq.com>

tests/entrypoints/openai_api/test_tts_adapter.py

@@ -15,6 +15,9 @@ from vllm_omni.entrypoints.openai.tts_adapters import (
 )
 from vllm_omni.entrypoints.openai.tts_adapters.qwen3_tts import Qwen3TTSAdapter
 
+pytestmark = [pytest.mark.core_model, pytest.mark.cpu]
+
+
 # Every dedicated TTS model-type must have an adapter so the orchestrator's
 # uniform ``self._adapter.build(...)`` dispatch covers it.
 EXPECTED_MODEL_TYPES = {