[Entrypoint][Refactor] vLLM-Omni Entrypoint Refactoring (#1908)

Signed-off-by: yinpe <11810305@mail.sustech.edu.cn>
Signed-off-by: Peiqi Yin <yinpeiqi809@gmail.com>
Signed-off-by: yinpeiqi <yinpeiqi809@gmail.com>
Signed-off-by: wuhang <whlbx@hotmail.com>
Signed-off-by: linyueqian <linyueqian@outlook.com>
Signed-off-by: princepride <wangzhipeng628@gmail.com>
Signed-off-by: lishunyang <lishunyang12@163.com>
Signed-off-by: Chenguang ZHENG <645327136@qq.com>
Signed-off-by: Peiqi Yin <60515999+yinpeiqi@users.noreply.github.com>
Co-authored-by: yinpe <11810305@mail.sustech.edu.cn>
Co-authored-by: Peiqi Yin <yinpeiqi809@gmail.com>
Co-authored-by: wuhang <whlbx@hotmail.com>
Co-authored-by: Peiqi Yin <60515999+yinpeiqi@users.noreply.github.com>
Co-authored-by: linyueqian <linyueqian@outlook.com>
Co-authored-by: princepride <wangzhipeng628@gmail.com>
Co-authored-by: lishunyang <lishunyang12@163.com>

docs/user_guide/diffusion/quantization/gguf.md

@@ -22,10 +22,16 @@
 CLI (examples/offline_inference/text_to_image/text_to_image.py)
   |
   v
-Omni (vllm_omni/entrypoints/omni.py)
+Omni (vllm_omni/entrypoints/__init__.py)
   |
   v
-OmniStage (diffusion)
+AsyncOmniEngine
+  |
+  v
+Orchestrator
+  |
+  v
+StageDiffusionClient
   |
   v
 DiffusionWorker
@@ -64,7 +70,13 @@ _generate_with_async_omni
 AsyncOmni
   |
   v
-DiffusionEngine
+AsyncOmniEngine
+  |
+  v
+Orchestrator
+  |
+  v
+StageDiffusionClient
   |
   v
 OmniRequestOutput