fix: Torch mixin + test with Prod

[Borda]

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Fixes # (issue).

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[Copilot]

Pull Request Overview

This PR fixes and extends the model registry functionality for PyTorch models by refactoring common setup logic into a new _setup method and adding tests to verify push and pull operations.

• Refactored name and temporary folder handling into a new _setup method in mixins.
• Added a new DummyTorchModel and test to validate Torch mixin push/pull behavior.
• Updated test files to import necessary modules and ensure model clean-up.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
tests/integrations/test_cloud.py	Added Torch mixin test and DummyTorchModel for registry operations.
src/litmodels/integrations/mixins.py	Introduced _setup method and integrated it into push_to_registry.
tests/integrations/test_mixins.py	Renamed a test function to better reflect its purpose.

[Copilot]

Pull Request Overview

This PR fixes the Torch mixin integration and adds production tests for both PyTorch and pickle registry mixins. It renames a test function for clearer intent, introduces a shared _setup helper in the mixins, and adds a new test for pushing and pulling a PyTorch model.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
tests/integrations/test_mixins.py	Renamed test function to better reflect the push and pull behavior.
tests/integrations/test_cloud.py	Added a new test and DummyTorchModel for PyTorch mixin integration.
src/litmodels/integrations/mixins.py	Refactored push methods to use a new _setup helper for parsing and validating model names.

Comments suppressed due to low confidence (1)

src/litmodels/integrations/mixins.py:120

• [nitpick] The registry key is built using the full name while the file name is derived from the extracted model_name; please confirm that this discrepancy is intentional. If consistency is desired, consider using model_name for the registry key as well.

model_registry = f"{name}:{version}" if version else name