chore: release v0.2.0

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.2.0](https://github.com/YuniqueCore/multiio/releases/tag/v0.2.0) - 2025-12-12
+
+### Added
+
+- *(format)* remove markdown format support
+- *(e2e)* add comprehensive e2e tests for TOML/INI pipelines
+- *(format)* add support for TOML and INI formats
+- *(e2e)* update baseline JSON files and improve comparison logic
+- *(e2e)* add end-to-end testing setup with Python 3.13
+- *(async-engine)* add support for sync format registry in async IO engine
+- *(engine)* add async record streaming with format-specific support
+- *(engine)* add streaming record reading support for multiple formats
+- *(engine)* add support for streaming JSON records from inputs
+- *(io)* introduce buffered reading and CSV streaming
+- *(benchmark)* add read stream benchmark for engine
+- *(io)* add buffering to standard I/O streams
+- *(async)* add support for configurable async I/O pipeline inputs and outputs
+- *(format)* add support for custom formats with dynamic registration
+- *(io)* refactor sync and async engines to use byte-based serialization
+- *(io)* implement synchronous and asynchronous IO builders
+- *(io)* implement unified I/O orchestration library
+
+### Other
+
+- *(github)* add release-plz workflows for automated releases
+- *(readme)* update signature image alt text
+- *(license)* update copyright year and add author information
+- *(deps)* update rust toolchain and github actions versions
+- *(ci)* add dependabot and CI/CD workflows
+- *(tests)* improve feature matrix compilation tests
+- *(format)* introduce `custom` feature flag and refactor custom format handling
+- *(format)* adjust default features and binary requirements
+- *(cli)* restructure default features and add new binaries and examples
+- *(rust)* update rust toolchain to version 1.92.0
+- *(format)* replace repetitive format registration loops
+- *(format)* refactor deserialization and serialization with macros
+- *(format)* centralize format definitions and default order
+- *(cli)* remove redundant comments and simplify documentation
+- *(test)* add input and output data for manual multi-source stdin and file test case
+- *(rust)* update toml and related dependencies in Cargo.lock
+- *(readme)* update supported formats and version references
+- *(readme)* update features table and add cli binaries section
+- *(cli)* add multiio_records_demo binary with JSON/CSV streaming support
+- *(e2e)* add error path and large dataset end-to-end tests
+- *(e2e)* add manual CLI end-to-end tests and input/output data
+- *(e2e)* add async pipeline support and expand test matrix
+- *(e2e)* add sync pipeline topology tests and baseline data
+- *(e2e)* add end-to-end tests and test infrastructure
+- *(builder)* add `with_custom_format` method and implement `Default` trait
+- *(async)* add support for custom format registration in async builder
+- *(engine)* add support for sync FormatRegistry in AsyncIoEngine
+- *(lib)* add documentation for streaming usage and semantics
+- *(benchmark)* add benchmark for engine read/write operations
+- *(tests)* add end-to-end test for async pipeline with mixed formats
+- *(builder)* pre-allocate vectors with known capacity
+- *(readme)* update README with custom formats and pipeline config examples
+- *(builder)* add e2e test for multi-input multi-output json pipeline
+- *(builder_async)* extract format inference logic into helper method
+- *(builder)* extract format inference logic into helper method
+- *(csv)* improve numeric field inference and error handling
+- *(format)* implement modular format handlers for CSV, JSON, Markdown, plaintext, XML, and YAML
+- *(engine)* add comprehensive async and sync engine tests
+- *(readme)* improve formatting and readability of documentation
+- *(tests)* restructure test modules and simplify imports
+- *(tests)* move test files into src/tests directory
+- *(config)* add tests for PipelineConfig and Input/OutputSpec parsing
+- *(cli)* move cli parsing tests to dedicated module
+- add comprehensive README with examples and architecture overview
+- *(deps)* update Cargo.lock with new dependencies and versions
+- *(config)* add autocorrect and typos configuration files
+- *(rust)* initialize multiio project with basic addition function