[AutoDeploy]:Unify Checkpoint and Graph-Based Quantization Detection

[Fridah-nv]

Currently, AutoDeploy handles quantized model detection through two separate mechanisms:

1. config parsing (e.g. via _load_quantization_config() in HF factory)
2. quantized nodes detection in graph transformation

This split introduces redundancy and complexity when onboarding new quant formats from source other than ModelOpt.

We want to introduce a base class to unify detection, transformation, and parameter resolution across all quant sources.

Goals:

• Support any quantization source (ModelOpt, native graph, etc.) via a unified handler.
• Remove scattered logic in HF factory for hf_quant_config.json.
• Make quantization transformation format-agnostic and modular.
• Reduce copy-paste code when adding new formats.

Subtasks:

• Introduce New Interface and Registry
• Migrate ModelOpt + FP8/NVFP4 Handler
• Refactor HF Factory Logic
• Refactor Graph Quantization Pass
• Validate with new quantization format

[therealnaveenkamal]

@Fridah-nv is anyone working on this? can I help?