enable support for device map auto

[tarsur909]

Fixes #142

[Copilot]

Pull Request Overview

This PR adds support for automatic device mapping by introducing a new parameter ("use_auto") in various parts of the codebase. Key changes include:

• Updating the language model initialization to use the model's device.
• Adding a new "use_auto" parameter to be passed in the inference and model loading routines.
• Documenting the new "use_auto" option in the README.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
syncode/language_model.py	Update device assignment by using self.model.device instead of a passed device.
syncode/infer.py	Introduced a new "use_auto" flag in function signatures and method calls to pass through the device mapping setting.
syncode/common.py	Extended load_model to support auto device mapping based on the "use_auto" flag.
README.md	Documentation update to include the new "use_auto" CLI option.

Comments suppressed due to low confidence (2)

syncode/infer.py:53

• [nitpick] Consider renaming 'use_auto' to a more descriptive name such as 'use_auto_device_mapping' to clarify its purpose.

use_auto: bool = False,

syncode/common.py:14

• [nitpick] Consider renaming the parameter 'use_auto' to a more descriptive name (e.g., 'use_auto_device_mapping') to enhance clarity across the codebase.

def load_model(model_name, device, quantize, use_auto = False):

[shubhamugare]

Looks Good! Let me merge it once the tests pass