Add CODEOWNERS file for code review requirements

Author: RonaldRonnie

.github/CODEOWNERS

@@ -0,0 +1,48 @@
+# Code Owners for BioAnalyzer Backend
+# This file defines who is responsible for reviewing changes to specific parts of the codebase.
+# See: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+
+# Global owners - all files require review from these teams
+* @waldronlab/bioanalyzer-maintainers
+
+# Core application code
+/app/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+
+# API routes and models
+/app/api/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-api-team
+
+# Services layer
+/app/services/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+
+# Models and AI/ML components
+/app/models/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-ml-team
+
+# Configuration and utilities
+/app/utils/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+
+# CI/CD and GitHub workflows
+/.github/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-devops-team
+
+# Docker configuration
+/Dockerfile @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-devops-team
+/docker-compose.yml @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-devops-team
+
+# Project configuration
+/pyproject.toml @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+/setup.py @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+
+# Documentation
+/docs/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-docs-team
+/README.md @waldronlab/bioanalyzer-maintainers
+/CONTRIBUTING.md @waldronlab/bioanalyzer-maintainers
+
+# Tests
+/tests/ @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-core-team
+
+# Security and dependency files
+/.github/dependabot.yml @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-security-team
+/renovate.json @waldronlab/bioanalyzer-maintainers @waldronlab/bioanalyzer-security-team
+
+# Note: If teams don't exist, replace with individual usernames
+# Example: * @username1 @username2
+