[Bug] qwen 35 megatron bridge install error

Bug Description

https://github.com/coding-famer/Megatron-Bridge-slime/tree/qwen35
from megatron.bridge.models.conversion.peft_bridge import AdapterWeightConversionTask, MegatronPeftBridge
but you dont have this src/megatron/bridge/models/conversion/peft_bridge.py

ModuleNotFoundError: No module named 'megatron.bridge.models.qwen_vl.qwen25_vl_provider'
ModuleNotFoundError: No module named 'megatron.bridge.models.mla_provider

Steps to Reproduce

no

Expected Behavior

no

Actual Behavior

no

Environment

• slime version:
• Python version:
• PyTorch version:
• CUDA/ROCm version:
• GPU type and count:
• OS:
• SGLang version (if relevant):
• Megatron-LM version (if relevant):

Logs

Additional Context

No response

Pre-submission Checklist

• I have read the CONTRIBUTING.md and understand the collaboration scope.
• I have read the documentation and my issue is not addressed there.
• I have searched for existing issues and this is not a duplicate.
• I have provided a minimal, reproducible example.

Start by comparing the qwen35 branch linked in the report with the installed source, especially src/megatron/bridge/models/conversion/peft_bridge.py and the qwen_vl.qwen25_vl_provider and mla_provider import paths. Reproduce the installation and trace which package version or branch provides the missing modules. Done means the reported imports resolve without ModuleNotFoundError.