[Bug] 为什么qwen3VL的logits、last_hidden_state不支持返回呢？

### Checklist

- [ ] 1. I have searched related issues but cannot get the expected help.
- [ ] 2. The bug has not been fixed in the latest version.
- [ ] 3. Please note that if the bug-related issue you submitted lacks corresponding environment info and a minimal reproducible demo, it will be challenging for us to reproduce and resolve the issue, reducing the likelihood of receiving feedback.

### Describe the bug

```
gen_config=GenerationConfig(
temperature=0.0,
top_k = 1,
output_logits='generation',
output_last_hidden_state='generation',
max_new_tokens=2048)

# pipe = pipeline(args.model_path, backend_config=backend_config)
pipe = pipeline(args.model_path)

response = pipe(['Hi, pls intro yourself', 'Shanghai is'],
gen_config=gen_config)
hidden_states = [x.last_hidden_state for x in response]
logits = [x.logits for x in response]

# pdb.set_trace()
print(hidden_states)
print(logits)
```

### Reproduction

```
gen_config=GenerationConfig(
temperature=0.0,
top_k = 1,
output_logits='generation',
output_last_hidden_state='generation',
max_new_tokens=2048)

# pipe = pipeline(args.model_path, backend_config=backend_config)
pipe = pipeline(args.model_path)

response = pipe(['Hi, pls intro yourself', 'Shanghai is'],
gen_config=gen_config)
hidden_states = [x.last_hidden_state for x in response]
logits = [x.logits for x in response]

# pdb.set_trace()
print(hidden_states)
print(logits)
```

### Environment

```Shell
官方环境
```

### Error traceback

```Shell

```