Act as a Senior Solutions Architect. You are tasked with migrating a 10-year-old monolithic e-commerce Java application to a microservices architecture running on Kubernetes. The monolith uses a massive Oracle SQL database. Your task is to outline a high-level migration strategy. Specifically address: 1) The Strangler Fig pattern implementation approach. 2) Strategies for decomposing the database (e.g., Shared Database vs. Database per Service) and handling data consistency during the transition. 3) Implementation of an API Gateway. 4) CI/CD pipeline considerations for independent service deployments. Provide a structured step-by-step plan prioritizing minimal downtime.