Merge pull request #120 from OpenCodeIntel/docs/repo-foundations

docs: add CHANGELOG and CODEOWNERS for repo foundations

Author: DevanshuNEU

.github/CODEOWNERS

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+# CODEOWNERS
+# This file defines who is responsible for code in this repository.
+# These owners will be automatically requested for review on PRs.
+# Learn more: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+
+# Default owners for everything in the repo
+* @devanshurajesh
+
+# Backend
+/backend/ @devanshurajesh
+
+# Frontend
+/frontend/ @devanshurajesh
+
+# MCP Server
+/mcp-server/ @devanshurajesh
+
+# Infrastructure & DevOps
+/docker-compose*.yml @devanshurajesh
+/Makefile @devanshurajesh
+/.github/ @devanshurajesh
+
+# Documentation
+*.md @devanshurajesh
+/docs/ @devanshurajesh

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/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- Frontend v2 redesign (in progress)
+- Anonymous repo indexing flow
+- AI-powered search summaries
+
+### Changed
+- Premium dark theme with glassmorphism effects
+- Improved search result display
+
+---
+
+## [0.1.0] - 2024-12-23
+
+### Added
+- Semantic code search using vector embeddings
+- Dependency graph analysis
+- Impact analysis for code changes
+- Code style analysis
+- MCP (Model Context Protocol) server integration
+- Support for Python, TypeScript, JavaScript, Go, Rust
+- Supabase authentication
+- Redis caching layer
+- Docker deployment support
+- Comprehensive API documentation
+
+### Infrastructure
+- FastAPI backend with async support
+- React + Vite + TypeScript frontend
+- Pinecone vector database integration
+- GitHub OAuth integration
+- Rate limiting and security middleware
+
+---
+
+## Version History
+
+This project follows [Semantic Versioning](https://semver.org/):
+
+- **MAJOR** version for incompatible API changes
+- **MINOR** version for new functionality (backwards compatible)
+- **PATCH** version for bug fixes (backwards compatible)
+
+Pre-1.0 releases (0.x.x) may have breaking changes in minor versions as the API stabilizes.