Add release management system and prepare v1.0.0 publication

- Add agent-releaseManager.md with comprehensive publication workflow guidance
- Add 6 release- prefixed make targets for structured release process:
  - release-check: Validate release readiness
  - release-prepare: Build packages and prepare release
  - release-test: Test publication via TestPyPI
  - release-publish: Publish to production PyPI
  - release-finalize: Post-release tasks (tags, GitHub releases)
  - release-rollback: Emergency rollback procedures
- Update pyproject.toml version from 0.1.0 to 1.0.0 for consistency with CHANGELOG.md
- Update installation documentation in README.md and GETTING_STARTED.md
  - Add current "from source" installation instructions
  - Maintain "from PyPI" instructions for post-publication
- Framework now ready for v1.0.0 publication with complete release workflow

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

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

README.md

@@ -7,8 +7,19 @@ This project embraces the Japanese concept of "kaizen" (continuous improvement)
 ## Quick Start
 
 ### Install the Package
+
+**From Source (Current - Development Version):**
 ```bash
-pip install kaizen-agentic
+git clone https://github.com/kaizen-agentic/kaizen-agentic.git
+cd kaizen-agentic
+make setup-complete
+make agents-install-cli
+source .venv/bin/activate
+```
+
+**From PyPI (Coming Soon):**
+```bash
+pip install kaizen-agentic  # Available after v1.0.0 publication
 ```
 
 ### Your First Project (New Users)