[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/examples/offline_inference/text_to_image.md

@@ -19,7 +19,7 @@ if __name__ == "__main__":
     omni = Omni(model="Qwen/Qwen-Image")
     prompt = "a cup of coffee on the table"
     outputs = omni.generate(prompt)
-    images = outputs[0].request_output[0].images
+    images = outputs[0].request_output.images
     images[0].save("coffee.png")
 ```
 
@@ -37,7 +37,7 @@ if __name__ == "__main__":
     ]
     outputs = omni.generate(prompts)
     for i, output in enumerate(outputs):
-      image = output.request_output[0].images[0].save(f"{i}.jpg")
+      image = output.request_output.images[0].save(f"{i}.jpg")
 ```
 
 !!! info
@@ -72,7 +72,7 @@ if __name__ == "__main__":
       }
     ])
     for i, output in enumerate(outputs):
-      image = output.request_output[0].images[0].save(f"{i}.jpg")
+      image = output.request_output.images[0].save(f"{i}.jpg")
 ```
 
 ## Local CLI Usage