### What does this PR do?
Type of change: Documentation
Add detailed quantization aware training (QAT and QAD) guide in our
docs, featuring examples on how to run in HF, Megatron-Bridge, and
Megatron-LM
### Usage
```python
# Add a code snippet demonstrating how to use this
```
### Testing
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weights_only=False)`, `pickle`, etc.).
- Is this change backward compatible?: ✅ / ❌ / N/A <!--- If ❌, explain
why. -->
- If you copied code from any other sources or added a new PIP
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- Did you write any new necessary tests?: ✅ / ❌ / N/A <!--- Mandatory
for new features or examples. -->
- Did you update
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backward breaking changes, deprecations, or fixes for critical bugs
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### Additional Information
<!-- E.g. related issue. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Documentation**
* Added a comprehensive guide for quantization-aware training (QAT) and
distillation (QAD), including workflows, framework guidance, setup,
training, and export steps.
* Updated the Guides navigation to include the new QAT/QAD guide.
* Expanded quantization guidance with QAT/QAD workflows, scale handling,
and NVFP4 references.
* Improved save and restore guidance with clearer references and an
explanatory note.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Signed-off-by: Jennifer Chen <jennifchen@nvidia.com>
Fix broken doc building CI and pin docs/test dependencies to avoid such
issues in future
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Documentation**
* Improved several guide cross-references so links resolve more reliably
in the rendered docs.
* Updated references in the quantization guides for better navigation
between related topics.
* **Chores**
* Tightened versions for documentation and test tooling to improve
consistency in local and CI environments.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Signed-off-by: Keval Morabia <28916987+kevalmorabia97@users.noreply.github.com>