chore: sync template files and configuration

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: Jonathan D.A. Jewell

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).
+
+## [Unreleased]
+
+### Planned
+- JWT-based authentication for HTTP API
+- Rate limiting for all endpoints
+- TLS support for encrypted connections
+- WASM core module for sandboxed conversion execution
+- Advanced format support (YAML, XML, TOML)
+- Plugin system for custom converters
+- LSP 3.18 feature support
+- Performance optimizations
+
+## [0.1.0] - 2025-11-22
+
+### Added
+- **LSP Server**: Complete LSP 3.17 implementation with tower-lsp
+  - Document synchronization (didOpen, didChange, didSave, didClose)
+  - Code completion with format-aware suggestions
+  - Hover information showing document statistics
+  - Execute commands for document conversion
+  - Diagnostic validation for document formats
+- **HTTP REST API**: Full REST API with axum
+  - POST /api/convert - Convert documents between formats
+  - GET /api/documents - List all documents
+  - GET /api/documents/:id - Get specific document
+  - DELETE /api/documents/:id - Delete document
+  - POST /api/validate - Validate document format
+  - GET /api/stats - Server statistics
+  - GET /api/health - Health check endpoint
+- **WebSocket Server**: Real-time document updates
+  - Subscribe/unsubscribe to document changes
+  - Document update notifications
+  - Ping/pong keepalive
+  - Broadcast messaging
+- **Conversion Engine**: Bidirectional format conversion
+  - Markdown ↔ HTML (full support via pulldown-cmark)
+  - Markdown ↔ JSON (structured representation)
+  - HTML ↔ JSON (DOM structure extraction)
+  - Format validation and diagnostics
+- **Document Store**: Lock-free concurrent storage
+  - DashMap for thread-safe operations
+  - Document versioning
+  - Metadata tracking (creation time, modification time)
+  - UUID-based identification
+- **Editor Clients**: 7 editor integrations (all <100 LOC)
+  - VS Code extension (~70 LOC)
+  - Neovim plugin (~65 LOC)
+  - Emacs package (~75 LOC)
+  - JetBrains plugin (~55 LOC)
+  - Sublime Text plugin (~60 LOC)
+  - Zed configuration
+  - Helix configuration
+- **Web UI**: Single-page application
+  - Live document converter
+  - Real-time dashboard with WebSocket updates
+  - Document manager interface
+  - Server statistics display
+  - Responsive design for mobile/desktop
+- **Infrastructure**:
+  - Dockerfile with multi-stage builds
+  - docker-compose.yml for orchestration
+  - podman-compose.yml for Podman support
+  - Comprehensive Makefile with 20+ targets
+  - Example configurations and conversions
+- **Documentation**:
+  - Complete README with quick start
+  - API documentation with examples
+  - CONTRIBUTING.md for developers
+  - SECURITY.md for security policies
+  - CODE_OF_CONDUCT.md for community
+  - MAINTAINERS.md for governance
+- **Testing**:
+  - LSP compliance test suite
+  - HTTP API integration tests
+  - Core conversion engine tests
+  - Document store concurrency tests
+- **RSR Compliance**:
+  - .well-known/security.txt (RFC 9116)
+  - .well-known/ai.txt (AI training policies)
+  - .well-known/humans.txt (attribution)
+  - justfile with build recipes
+  - flake.nix for Nix reproducible builds
+  - .gitlab-ci.yml for CI/CD
+
+### Changed
+- N/A (initial release)
+
+### Deprecated
+- N/A (initial release)
+
+### Removed
+- N/A (initial release)
+
+### Fixed
+- N/A (initial release)
+
+### Security
+- Memory safety guaranteed by Rust ownership system
+- No unsafe code blocks in implementation
+- Input validation for all HTTP endpoints
+- LSP message validation
+- CORS enabled for web UI access
+
+## Version History
+
+- [0.1.0] - 2025-11-22: Initial release with core functionality
+
+## Migration Guides
+
+### From Non-LSP Solutions
+
+If migrating from traditional editor-specific plugins:
+
+1. **Install Server**: Build and install the Rust server
+2. **Install Client**: Install editor-specific client for your editor
+3. **Configure**: Set server path in client configuration
+4. **Test**: Open a Markdown/HTML/JSON file and test conversion commands
+
+### Future Migrations
+
+When upgrading to future versions, consult version-specific migration guides.
+
+## Deprecation Policy
+
+- **Minor versions**: Features deprecated with 6-month warning
+- **Major versions**: Breaking changes allowed with migration guide
+- **Security**: Immediate deprecation if security risk identified
+
+## Support
+
+- **Current Version**: 0.1.0 (active development)
+- **LTS**: Not yet designated
+- **EOL**: None yet
+
+## Links
+
+- [Repository](https://github.com/universal-connector/universal-language-connector)
+- [Issue Tracker](https://github.com/universal-connector/universal-language-connector/issues)
+- [Documentation](https://universal-connector.org/docs)
+- [Changelog](https://github.com/universal-connector/universal-language-connector/blob/main/CHANGELOG.md)
+
+---
+
+**Changelog Format**: [Keep a Changelog](https://keepachangelog.com/)
+**Versioning**: [Semantic Versioning](https://semver.org/)