Build extensions for Glixo

The verified executable authoring path is a Rust WebAssembly component using the glxdev LLM compat template. Protocol-v0 manifests, echo entries, Node commands, and ZIP files alone do not make VNext packages.

• Rust LLM compat: local scaffold, check, build, host conformance, deterministic package creation, verification, and test-fixture host install/activation.
• C# provider sample: source-only host development; the trusted host build must compile and explicitly register it. It cannot be loaded from a marketplace package.
• First-party providers and storage: host-owned implementations; browse/configure in Glixo settings.
• Legacy community modules: fake echo/stdio/client entries are unlisted; OneDrive and Dropbox descriptors are browse/configure-only without artifact links. Old archives are never re-signed as VNext.

Use glxdev help for current CLI flags. Production root issuance, publisher OAuth setup, public admission, and production publishing remain unverified.