The backend never compiles @teable/* sources — it loads packages/*/dist via
node_modules symlinks (@teable/v2-core is a webpack external, read at runtime
from packages/v2/core/dist/index.cjs). Editing a package's src and only
rebuilding apps/nestjs-backend ships nothing: no error, old behavior online.
Documented the correct build order + verification greps in AGENTS.md and the
skill's development guide (found while shipping the defaultValue cascade fix).