Improve entrypoint handling for external services and startup wrappers. entrypoint.sh now more robustly parses REDIS_URL (handles optional :password@host) and masks credentials when printing DATABASE_URL/REDIS_URL. It exports USE_EXTERNAL_POSTGRES and USE_EXTERNAL_REDIS so supervisor wrappers can decide behavior without re-parsing URLs. The temporary PostgreSQL shutdown was moved to after Prisma migrations and a warning was added when pushing schema to an external DB. postgres-start.sh and redis-start.sh were simplified to check the USE_EXTERNAL_* flags and sleep if an external service is configured. Also cleaned up formatting of the PostgreSQL ownership error message.
Implements smart detection that allows users to provide external DATABASE_URL
or REDIS_URL. When external services are detected, internal instances are
automatically disabled to save resources. Maintains full backward compatibility
with existing setup
kikootwo