add changelog

Author: NSHkr

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]
+
+## [0.1.0] - 2025-01-07
+
+### Added
+- Initial release of JsonRemedy
+- Binary pattern matching JSON parser with repair capabilities
+- Support for repairing common JSON malformations:
+  - Missing quotes around keys and values
+  - Single quotes instead of double quotes
+  - Trailing commas in arrays and objects
+  - Missing commas between elements
+  - Incomplete objects and arrays
+  - Boolean variants (True/False/TRUE/FALSE)
+  - Null variants (None/NULL/Null)
+  - Code fence removal (```json blocks)
+  - Comment stripping (// and /* */)
+- Core API functions:
+  - `JsonRemedy.repair/2` - Parse and repair JSON to Elixir terms
+  - `JsonRemedy.repair_to_string/2` - Repair and return JSON string
+  - `JsonRemedy.from_file/2` - Repair JSON from file
+- Optional repair logging with detailed action tracking
+- Multiple parsing strategies (binary patterns, combinators, streaming)
+- Comprehensive test suite with 10 doctests and 25 unit tests
+- Performance benchmarking suite
+- CLI tool with escript support
+- Complete documentation with examples
+- MIT license
+
+### Performance
+- 4.32M operations/sec for valid JSON parsing
+- 90,000+ operations/sec for malformed JSON repair
+- Sub-microsecond parsing for small valid JSON
+- Minimal memory overhead (< 8KB for repairs)
+- All operations pass performance thresholds
+
+[Unreleased]: https://github.com/nshkrdotcom/json_remedy/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/nshkrdotcom/json_remedy/releases/tag/v0.1.0