chore: atualiza versão para 2.1.2 e melhora gestão de memória

[jlsneto]

No description provided.

[Copilot]

Pull request overview

This PR updates the Cereja library to version 2.1.2 with a focus on memory management improvements and new cryptography features. The changes include replacing time.time() with time.monotonic() for more reliable elapsed time measurements, implementing comprehensive memory cleanup with weak references and threading locks, and introducing a new cryptography module with encryption/decryption capabilities.

Key Changes

• Memory Management: Enhanced _Stdout, _ConsoleBase, Progress, and Matrix classes with weak references, thread locks, and proper cleanup methods to prevent memory leaks
• Time Measurement: Migrated from time.time() to time.monotonic() across all timing-related code for monotonic clock guarantees
• New Cryptography Module: Added cereja/hashtools/_crypto.py with custom HMAC-based stream cipher for encryption/decryption operations

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 30 comments.

Show a summary per file

File	Description
cereja/init.py	Updated version to 2.1.2 and added hashtools exports
cereja/hashtools/_crypto.py	New cryptography module with custom stream cipher implementation
cereja/hashtools/init.py	Added crypto module exports
tests/testcrypto.py	Comprehensive test suite for new crypto functionality
cereja/experimental/gitchangelog.py	New git changelog generation utility
cereja/utils/time.py	Replaced time.time() with time.monotonic() in Timer class
cereja/utils/decorators.py	Updated time_exec and scheduled decorators to use monotonic time
cereja/system/_win32.py	Updated Windows timer implementation to use monotonic time
cereja/concurrently/process.py	Updated process timing to use monotonic clock
cereja/display/_display.py	Major refactoring with weak references, thread safety, and resource cleanup
cereja/array/_array.py	Improved flatten algorithm, enhanced Matrix class with better documentation
cereja/utils/git/runner.py	Modified git command execution with stdout redirection changes
tests/testsDataIterator.py	Expanded test data for random element testing

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[Copilot]

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