[Entrypoints] Support Qwen-Image-Edit 2509 online serving & update doc (#368)

Signed-off-by: David Chen <530634352@qq.com>

docs/user_guide/acceleration/cache_dit_acceleration.md

@@ -50,6 +50,22 @@ omni = Omni(
 )
 ```
 
+## Online Serving (OpenAI-Compatible)
+
+Enable Cache-DiT for online serving by passing `--cache-backend cache_dit` when starting the server:
+
+```bash
+# Use Cache-DiT default (recommended) parameters
+vllm serve Qwen/Qwen-Image --omni --port 8091 --cache-backend cache_dit
+```
+
+To customize Cache-DiT settings for online serving, pass a JSON string via `--cache-config`:
+
+```bash
+vllm serve Qwen/Qwen-Image --omni --port 8091 \
+  --cache-backend cache_dit \
+  --cache-config '{"Fn_compute_blocks": 1, "Bn_compute_blocks": 0, "max_warmup_steps": 4, "residual_diff_threshold": 0.12}'
+```
 
 ## Acceleration Methods
 

docs/user_guide/acceleration/teacache.md

@@ -39,6 +39,16 @@ omni = Omni(
 )
 ```
 
+## Online Serving (OpenAI-Compatible)
+
+Enable TeaCache for online serving by passing `--cache-backend tea_cache` when starting the server:
+
+```bash
+vllm serve Qwen/Qwen-Image --omni --port 8091 \
+  --cache-backend tea_cache \
+  --cache-config '{"rel_l1_thresh": 0.2}'
+```
+
 ## Configuration Parameters
 
 ### `rel_l1_thresh` (float, default: `0.2`)

docs/user_guide/diffusion_acceleration.md

@@ -36,7 +36,7 @@ The following table shows which models are currently supported by each accelerat
 |-------|-----------------|----------|-----------|-----------|
 | **Qwen-Image** | `Qwen/Qwen-Image` | ✅ | ✅ | ✅ |
 | **Z-Image** | `Tongyi-MAI/Z-Image-Turbo` | ❌ | ✅ |❌ |
-| **Qwen-Image-Edit** | `Qwen/Qwen-Image-Edit` | ❌ | ✅ |✅ |
+| **Qwen-Image-Edit** | `Qwen/Qwen-Image-Edit` | ✅ | ✅ |✅ |
 | **Qwen-Image-Edit-2509** | `Qwen/Qwen-Image-Edit-2509` | ❌ | ✅ |✅ |
 
 

docs/user_guide/examples/offline_inference/image_to_image.md

@@ -19,7 +19,7 @@ python image_edit.py \
   --guidance_scale 1.0
 ```
 
-### Multiple Image Editing (Qwen-Image-Edit-2509+)
+### Multiple Image Editing (Qwen-Image-Edit-2509)
 
 For multiple image inputs, use `Qwen/Qwen-Image-Edit-2509` or later version: