bundle-standard-core

Pure-Rust workspace assembly + ZIP for the bundle-standard Greentic bundle-extension recipe. Cross-compiles cleanly to wasm32-wasip2 and runs entirely in-memory (no tempfile, no walkdir, no native std::fs mutation).

Consumers: bundle-standard WASM extension (in greentic-bundle-extensions), plus the legacy builtin bridge in greentic-bundle/src/ext/builtin_bridge.rs during the migration window.