Set MALLOC_ARENA_MAX=2 and MALLOC_TRIM_THRESHOLD_ on the langgraph-python and
langgraph-fastapi entrypoints to curb glibc arena fragmentation on the many-core
Railway host, and NODE_OPTIONS --max-old-space-size=1536 scoped to the
langgraph-typescript agent process (not the sibling Next.js server) to cap the
V8 heap. All values use ${VAR:-default} so explicit Railway overrides win.
Replace sys.path.insert hacks in Python agent files with direct
imports via symlinks to shared/{python,typescript}/tools.
Update Dockerfiles, entrypoints, and configs to support the new
symlink-based tool resolution. Add PARITY_NOTES for frameworks
that have known gaps.
The showcase framework directories better reflect their role as
integration examples rather than distributable packages.
Renames showcase/packages/ -> showcase/integrations/ and updates
the test docker-compose file reference accordingly.
Jordan Ritter