refactor(api_client): remove unused pydantic validator import

This change removes an unused 'validator' import from the pydantic
module in the api_client.py file. By cleaning up unused imports, it
improves code readability and reduces potential confusion for future
developers working on the codebase.

feat: enhance chat completion with detailed response objects

This commit introduces multiple classes representing different parts
of the chat completion response, such as ChatCompletionsChoiceObject,
ChatCompletionsChoiceMessageObject, and more. These changes improve
the codebase by providing a structured and detailed representation of
the API response, enhancing readability and maintainability. The
return type of the `create_chat_completion` function is now
`ChatCompletionsObject`, ensuring type safety and clarity. Additionally,

feat: enhance error handling and type annotations

- Added detailed error and warning classes (APIError, APIWarning)
  to improve the handling and representation of API errors.
- Updated InfuzuAPIError to extend httpx.HTTPStatusError for better
  integration with HTTP-related error handling.
- Introduced logging for JSON decode errors to aid in debugging.
- Enhanced type annotations in main.py for better code clarity and
  type checking.
- Improved the import structure in __init__.py for better readability.

feat(error-handling): implement custom error handling for API requests

Introduced a custom exception `InfuzuAPIError` to replace generic
error handling in the `api_client`. This enhances clarity and
provides a consistent error interface, making it easier to manage
errors across the application.

fix(workflow): streamline PyPI publish step in GitHub Actions

Simplified the PyPI publish command by consolidating authentication
parameters directly into the hatch publish command. This change
enhances readability and reduces potential errors in environment
variable setup.

fix(workflows): simplify tag pattern for PyPI publish trigger

Adjusted the tag pattern in GitHub workflow to trigger on any version
tag starting with 'v'. This change allows for more flexible versioning
and ensures the publish process initiates for all semantic version
tags.

Update package version to PACKAGE_VERSION [skip ci]

Update package version to PACKAGE_VERSION [skip ci]

chore: update package version to 0.1.1

This change updates the package version to 0.1.1, reflecting
new enhancements or bug fixes introduced in the codebase.
Ensures that dependent systems or users are aware of the
latest updates and improvements.

fix(workflow): correct version extraction and Git setup

Improved the GitHub Actions workflow for publishing to PyPI by:
- Assigning an ID to the version extraction step
- Configuring Git user details separately
- Ensuring the main branch is checked out before updating the version

This ensures accurate version management and prevents errors during CI.