feat(v0.1.0): project foundation with logging and config

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).
+
+## [0.1.0] - 2026-01-XX
+
+### Added
+- Project foundation with complete directory structure
+- Comprehensive logging system with JSON and console formatters
+- Configuration management with YAML and environment variable support
+- Custom exception hierarchy for error handling
+- Core constants and enums for pattern types and trading concepts
+- Base classes for detectors and models
+- Initial test suite with pytest
+- Development tooling (black, flake8, mypy, pre-commit hooks)
+- Documentation structure
+
+### Infrastructure
+- Git repository initialization
+- Requirements files for production and development
+- Setup.py and pyproject.toml for package management
+- Makefile for common commands
+- .gitignore with comprehensive patterns
+- Environment variable template (.env.example)
+