Define and package the curated application face

[MiguelsPizza]

Why

Rook needs one small package contract for curated applications without forcing every provider into a universal runtime adapter. The package should own provider identity, model-facing types, client behavior, authoritative inputs, and browser proof; the extension should own Chrome authority, sandbox lifecycle, and transport routing.

This is the package-side dependency for rook#135, which pins the exact reviewed commit.

The generated Google surface continues to come from the Google API Discovery Service. The published entrypoint follows Node's package entry point contract with executable ESM and bundled declarations rather than TypeScript source under node_modules.

What changed

• Define one Google Workspace application ID and generate its ApplicationsNamespace binding alongside the client types.
• Export named authorization, transport, and workspace contracts for the installer boundary.
• Export the curated card, searchable member index, related skills, auth requirements, requests, and native client from one root entrypoint.
• Build deterministic browser ESM and .d.ts artifacts with Vite+ while retaining the source, skills, and authoritative Discovery inputs needed by Rook's immutable Git pin.
• Validate the actual tarball through a clean install, Node runtime import, and minimal TypeScript consumer; fail when checked-in distribution artifacts drift.
• Document temporary local linking for rapid extension development while keeping reviewed commit pins as final integration state.

Verification

• vp run check
• format, lint, TypeScript, and generated-source drift checks
• 1 package contract test and 2 real-Chromium boundary tests
• deterministic package build with no source maps
• clean packed install, Node 24 runtime import, and NodeNext TypeScript consumer

Release scope

GraphQL and additional providers remain intentionally excluded. Changesets and npm trusted-publishing automation should land only when the @rook trusted publisher is configured.