📝 Add CHANGELOG.md for version 0.7.0

Document changes, additions, and removals for version 0.7.0

Create CHANGELOG.md to track project changes:
- Add sections for removed features, new additions, and fixes
- Include notable changes and refactoring efforts
- List performance optimizations and documentation updates
- Provide metrics on total commits, files changed, and line modifications

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).
+
+## [0.7.0] - 
+
+### 🗑️ Removed
+
+- 🔥 Remove tracking of unstaged files across multiple modules (db9db44)
+- 🔥 Delete legacy interactive and old TUI commit modules (630aa21)
+
+### ✨ Added
+
+- ✨ Introduce cosmic-themed TUI for commit message creation (99c9428)
+- ✨ Add support for pre and post commit hooks (43c8b56)
+- ✨ Implement retry mechanism for LLM requests with exponential backoff (b798758)
+- 🚀 Integrate Gitmoji support in TUI for commit messages (217ed78)
+- 📝 Create TODO.md file with project roadmap and goals (3e18ffa)
+- 🎨 Enhance instruction presets with emojis for visual appeal (7927873)
+
+### 🐛 Fixed
+
+- 🐛 Fix TUI message editing and rendering issues (538552f)
+- 🐛 Correct binary file detection in git status parsing (a95c228)
+- 🐛 Address CI/CD release issues and improve asset handling (da7b239)
+
+### 🔄 Changed
+
+- ♻️ Refactor project structure for improved modularity and maintainability (f1d60bf, e67206d, b48d37a)
+- ⚡️ Optimize performance by parallelizing metadata extraction and caching git context (3a8163d, f1d60bf)
+- 🔧 Update logging configuration for flexible log file paths and optional stdout logging (d738d89)
+- 📝 Revise README to reflect new Git workflow focus and update project description (c404eb5)
+
+### 📊 Metrics
+
+- Total Commits: 70
+- Files Changed: 257
+- Insertions: 9691
+- Deletions: 6079
+
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