PLATFORM_EVOLUTION.md: rewrite with convention-driven service
definitions (derived image names, service-level version, agent
defaults), mcdsl as a proper Go module (gap #1), multi-node
design considerations, and service discovery open question.
engineering-standards.md: add shared libraries section establishing
mcdsl as a normally-versioned Go module (no replace directives in
committed code), update service definition example to convention-
driven minimal format with route declarations.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add [build] section to service definition format, document mcp build
and mcp sync auto-build, add Build and Release Workflow section.
Pin example image tags to explicit versions — :latest is no longer
permitted in service definitions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
