[diffusion] add doc and fix qwen-image (#96)

Signed-off-by: zjy0516 <riverclouds.zhu@qq.com>

docs/api/README.md

@@ -11,6 +11,7 @@ Main entry points for vLLM-omni inference and serving.
 - [vllm_omni.entrypoints.chat_utils.parse_chat_messages_futures][]
 - [vllm_omni.entrypoints.cli.serve.OmniServeCommand][]
 - [vllm_omni.entrypoints.log_utils.OrchestratorMetrics][]
+- [vllm_omni.entrypoints.omni.Omni][]
 - [vllm_omni.entrypoints.omni_llm.OmniLLM][]
 - [vllm_omni.entrypoints.omni_llm.OmniStageLLM][]
 - [vllm_omni.entrypoints.omni_stage.OmniStage][]
@@ -30,6 +31,7 @@ Input data structures for multi-modal inputs.
 
 Engine classes for offline and online inference.
 
+- [vllm_omni.diffusion.diffusion_engine.DiffusionEngine][]
 - [vllm_omni.engine.AdditionalInformationEntry][]
 - [vllm_omni.engine.AdditionalInformationPayload][]
 - [vllm_omni.engine.OmniEngineCoreRequest][]
@@ -81,6 +83,8 @@ Configuration classes.
 
 Worker classes and model runners for distributed inference.
 
+- [vllm_omni.diffusion.worker.gpu_worker.GPUWorker][]
+- [vllm_omni.diffusion.worker.gpu_worker.WorkerProc][]
 - [vllm_omni.worker.gpu_ar_model_runner.GPUARModelRunner][]
 - [vllm_omni.worker.gpu_ar_worker.GPUARWorker][]
 - [vllm_omni.worker.gpu_diffusion_model_runner.GPUDiffusionModelRunner][]

docs/models/supported_models.md

@@ -4,7 +4,7 @@ vLLM-Omni supports unified multimodal comprehension and generation models across
 
 ## Model Implementation
 
-If vLLM-Omni natively supports a model, its implementation can be found in <gh-file:vllm-omni/model_executor/models>.
+If vLLM-Omni natively supports a model, its implementation can be found in <gh-file:vllm-omni/model_executor/models> and <gh-file:vllm_omni/diffusion/models>.
 
 ## List of Supported Models for Nvidia GPU
 
@@ -17,7 +17,8 @@ th {
 
 | Architecture | Models | Example HF Models |
 |--------------|--------|-------------------|
-| `Qwen2_5OmniForConditionalGeneration` | Qwen2.5-Omni | `Qwen/Qwen2.5-Omni-7B`, `Qwen/Qwen2.5-Omni-3B`|
+| `Qwen2_5OmniForConditionalGeneration` | Qwen2.5-Omni | `Qwen/Qwen2.5-Omni-7B`, `Qwen/Qwen2.5-Omni-3B` |
+| `QwenImagePipeline` | Qwen-Image | `Qwen/Qwen-Image` |
 
 
 ## List of Supported Models for Ascend NPU