release: prepare v0.3.0 - Architectural Improvements

- Kaizen-agentic framework integration as capability submodule
- Test reorganization by capability with better modularity
- Comprehensive capability inclusion management system
- Directory reorganization with logical separation
- Todofile system implementation replacing NEXT.md
- Historical file organization for cleaner structure

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Co-Authored-By: Claude <noreply@anthropic.com>

CHANGELOG.md

@@ -7,10 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0] - 2025-10-25
+
 ### Added
 - **Kaizen-Agentic Framework Integration** as external capability submodule
 - **Test Reorganization by Capability** with separated test targets for better modularity
 - **Comprehensive Capability Inclusion Management System** with automated discovery tools
+- **Todofile System Implementation** - Modern task management replacing NEXT.md
+- **Historical File Organization** - Legacy files moved to history directory for better project structure
 
 ### Changed
 - **Capability Directory Reorganization** - moved all external dependencies to `capabilities/` directory
@@ -24,6 +28,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Test Performance** - core tests now exclude capability tests for faster execution
 - **Development Workflow** - clear separation between internal and external capabilities
 - **Documentation Ecosystem** - complete capability documentation with CAPABILITIES.md and CAPABILITY_REGISTRY.md
+- **Code Organization** - Archive of legacy files to maintain clean working directory
 
 ## [0.2.0] - 2025-10-20