Add community interaction files

- CONTRIBUTING.md: Comprehensive contributor guidelines
- CHANGELOG.md: Version history and release notes
- CODE_OF_CONDUCT.md: Community standards and behavior guidelines
- SECURITY.md: Security policy and vulnerability reporting
- GitHub issue templates: Bug reports, features, questions
- Pull request template: Structured PR submissions

Enhances community engagement and project governance.

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

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

CHANGELOG.md

@@ -0,0 +1,109 @@
+# Changelog
+
+## Legend
+| Symbol | Meaning | | Abbrev | Meaning |
+|--------|---------|---|--------|---------|
+| → | leads to | | cfg | configuration |
+| + | added | | MCP | Model Context Protocol |
+| - | removed | | UI | user interface |
+| ! | breaking | | deps | dependencies |
+
+All notable changes to SuperClaude 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).
+
+## [Unreleased]
+### Added
+- Community interaction files
+- GitHub issue & PR templates
+- Contributing guidelines
+
+## [4.0.0] - 2025-06-22
+### Added
+- **Core Configuration Framework**
+  - CLAUDE.md → Main cfg + ops rules
+  - RULES.md → Governance + severity system (C/H/M/L)
+  - PERSONAS.md → 9 cognitive archetypes
+  - MCP.md → Model Context Protocol integration patterns
+
+- **Slash Commands (18)**
+  - Dev: build, dev-setup, test
+  - Analysis: analyze, troubleshoot, improve, explain
+  - Ops: deploy, migrate, scan, estimate, cleanup, git
+  - Design: design
+  - Workflow: spawn, document
+  - System: load
+
+- **Shared Resources (26)**
+  - YAML configuration files
+  - Workflow patterns & templates
+  - Performance monitoring
+  - Error recovery strategies
+
+- **Cognitive Personas (9)**
+  - architect → System design & long-term thinking
+  - frontend → UX & interface optimization
+  - backend → Performance & reliability
+  - analyzer → Root cause analysis
+  - security → Threat modeling & secure design
+  - mentor → Teaching & guided discovery
+  - refactorer → Code quality & simplification
+  - performance → Speed optimization
+  - qa → Quality assurance & testing
+
+- **MCP Integration**
+  - Context7 → Documentation lookup
+  - Sequential → Complex analysis
+  - Magic → UI component generation
+  - Puppeteer → Browser automation
+
+- **Advanced Features**
+  - UltraCompressed mode (~70% token reduction)
+  - Token economy & smart model selection
+  - Research-first methodology
+  - Planning mode w/ --plan flag
+  - Thinking modes (basic→standard→deep→critical)
+  - Evidence-based decision making
+
+- **Installation & Setup**
+  - Global deployment to ~/.claude/
+  - Bash installation script
+  - Backup & migration support
+  - Verification & validation
+
+### Technical Details
+- **Languages**: Bash, YAML, Markdown
+- **Target**: Claude Code enhancement
+- **License**: MIT
+- **Compatibility**: Cross-platform (macOS, Windows, Linux)
+
+## Version History Notes
+
+### Versioning Strategy
+- **Major** (X.0.0): Breaking changes to core architecture
+- **Minor** (X.Y.0): New features, personas, or commands
+- **Patch** (X.Y.Z): Bug fixes, documentation, minor improvements
+
+### Breaking Changes Policy
+- Deprecated features → 1 version warning
+- Migration guides provided
+- Backward compatibility when possible
+
+### Release Process
+1. Feature development
+2. Testing & validation
+3. Documentation updates
+4. CHANGELOG.md update
+5. Version tag & release
+6. Community notification
+
+---
+
+**Links:**
+- [Repository](https://github.com/NomenAK/SuperClaude)
+- [Issues](https://github.com/NomenAK/SuperClaude/issues)
+- [Contributing](CONTRIBUTING.md)
+- [License](LICENSE)
+
+*SuperClaude v4.0.0 | Configuration framework for Claude Code*