docs: complete project documentation and task management cleanup

### Documentation Updates
- Added comprehensive WORKSPACE_AND_DATABASES.md documentation explaining:
  - Markitect's workspace-based architecture concept
  - Database separation (markitect.db vs assets.db) and purposes
  - Configuration management and asset integration
  - Best practices for development, collaboration, and production

### Changelog Management
- Updated CHANGELOG.md with complete release history coverage
- Added missing v0.8.0 entry for setuptools-SCM integration and release automation
- Added proper version comparison links for all releases
- Documented all recent work in Unreleased section following Keep a Changelog format

### Task Management
- Cleaned TODO.md file by removing all completed tasks
- Reset to clean state referencing changelog for completed work
- Maintained Keep a Todofile format for future development sessions

This completes the documentation and task management improvements for
the ChatGPT theme implementation, modular theme system, issue-facade
bug fixes, and workspace architecture clarification work.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

CHANGELOG.md

@@ -7,6 +7,37 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- **ChatGPT Document Theme**: New document theme with Inter font, 580px width, and #10a37f accent color with full CLI support (`markitect md-render --theme chatgpt`)
+- **Modular Theme System Architecture**: File-based theme loading with YAML configuration and dynamic theme discovery
+- **Theme Directory Structure**: Organized theme components (mode/, ui/, document/, branding/) for better maintainability
+- **Database Architecture Documentation**: Comprehensive WORKSPACE_AND_DATABASES.md documenting workspace concepts and database purposes
+
+### Changed
+- **Theme Loading System**: Implemented dynamic theme discovery and loading with metadata preservation
+- **Test Suite Organization**: Removed obsolete configuration CLI tests (490 lines) for cleaner codebase
+
+### Fixed
+- **Issue-facade Click Framework Bug**: Resolved Sentinel bug in list command that was causing CLI failures
+- **Issue-facade Version Command**: Fixed installation error preventing version command from working
+- **Test Isolation Issues**: Improved test isolation with proper mocking to prevent cross-test interference
+- **Theme Color Assertions**: Updated test assertions to work with new modular theme system
+
+## [0.8.0] - 2025-11-08
+
+### Added
+- **Setuptools-SCM Integration**: Automatic version management system replacing manual version tracking
+- **Gitea Package Publishing**: Complete CI/CD pipeline for automated package publishing to Gitea
+- **Enhanced Release Documentation**: Comprehensive documentation for package building and release process
+
+### Changed
+- **Release Script Architecture**: Modernized release workflow with setuptools-scm integration
+- **Makefile Release Targets**: Updated release targets to support automated version management
+- **Package Building Process**: Streamlined package creation with enhanced build targets
+
+### Removed
+- **Legacy Release Scripts**: Removed obsolete release_simplified.py in favor of unified release.py
+
 ## [0.7.0] - 2025-11-08
 
 ### Added
@@ -158,4 +189,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Build System**: Enhanced build targets with venv Python and PYTHONPATH support
 - **Target Naming**: Renamed workspace targets to TDD Workspace with tdd- prefix
 
-xxx
+[Unreleased]: https://github.com/worsch/markitect/compare/v0.8.0...HEAD
+[0.8.0]: https://github.com/worsch/markitect/compare/v0.7.0...v0.8.0
+[0.7.0]: https://github.com/worsch/markitect/compare/v0.6.0...v0.7.0
+[0.6.0]: https://github.com/worsch/markitect/compare/v0.5.0...v0.6.0
+[0.5.0]: https://github.com/worsch/markitect/compare/v0.4.0...v0.5.0
+[0.4.0]: https://github.com/worsch/markitect/compare/v0.3.0...v0.4.0
+[0.3.0]: https://github.com/worsch/markitect/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/worsch/markitect/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/worsch/markitect/releases/tag/v0.1.0