convert: add @ModelBase.example (#27208)

* convert: add @ModelBase.example

* add docs

* add more variants

* BailingMoeV3ForCausalLM

* rm pocket-tts

conversion/step3.py

@@ -16,6 +16,7 @@ from .qwen import Qwen3Model
 
 
 @ModelBase.register("StepVLForConditionalGeneration", "Step3p7ForConditionalGeneration")
+@ModelBase.example("stepfun-ai/Step3-VL-10B", "stepfun-ai/Step-3.7-Flash")
 class Step3VLVisionModel(MmprojModel):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -91,11 +92,13 @@ class Step3VLVisionModel(MmprojModel):
 
 
 @ModelBase.register("StepVLForConditionalGeneration")
+@ModelBase.example("stepfun-ai/Step3-VL-10B")
 class Step3VLTextModel(Qwen3Model):
     model_arch = gguf.MODEL_ARCH.QWEN3
 
 
 @ModelBase.register("Step3p5ForCausalLM", "Step3p7ForConditionalGeneration")
+@ModelBase.example("stepfun-ai/Step-3.7-Flash")
 class Step35Model(TextModel):
     model_arch = gguf.MODEL_ARCH.STEP35
     supports_mtp_export = True