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- Refactor server initialization to separate concerns and improve error handling. - Implement centralized environment validation using Zod. - Introduce database, Redis, and queue lifecycle management. - Add health check endpoints for liveness and readiness. - Enhance error handling middleware for better response structure. - Implement rate limiting for API endpoints. - Add request ID middleware for traceability. - Create Sequelize CLI configuration and baseline migration for schema management. - Establish CI workflow with Gitea for testing and syntax checks. - Document foundational changes and migration strategy in PHASE_0_FOUNDATION_STABILIZATION.md. - Add Docker Compose configuration for local development and testing. - Implement unit and integration tests for critical functionality.