[TheGreatAxios]

Closes CL-9395

Summary

• LICENSE replaced with Interchange's LGPL-2.1 text (was the FSF text with an extra header). CLA.md and the CLA Assistant workflow (cla.yml, signatures on a cla-signatures branch) added; CONTRIBUTING links the CLA.
• package.json: added keywords, homepage#readme and engines bun >=1.2.0, node >=24; build clears dist first; new test script (bun test src --pass-with-no-tests, there are no unit tests today); test:e2e runs bun test e2e; check is now typecheck, lint, format check and unit tests (e2e runs as its own CI step); key order is oxfmt's sortPackageJson order.
• tsconfig.json and tsconfig.build.json use the shared templates. The one error the stricter flags surfaced: runAgentTokenMigrations passed ssl: config.ssl (possibly undefined) to postgres; it now passes config.ssl ?? false, the driver's default.
• .gitignore replaced with the shared template.
• ci.yml replaced with the standard job: checkout v5, Node 24, Postgres 16 service, bun run check, bun run test:e2e, then packs the tarball and imports mintAgentToken, revokeAgentToken, verifyAgentToken, mountAgentTokens, createAgentTokenVerifier and requireAgentToken under Node.
• CONTRIBUTING trimmed to the standard (Development, CLA line, e2e notes, Migrations, Commit messages). New AGENTS.md. README badges removed.
• CONTRIBUTING gets a Releasing section: releases are manual, as in Interchange (npm version, push tags, gh release create --generate-notes, npm publish).

Commits

1. chore: use the Interchange LICENSE text and add the CLA
2. build: align package.json and tsconfig with the package standard
3. ci: run check and a Node pack smoke
4. docs: trim CONTRIBUTING, add AGENTS.md, drop README badges

Checks

bun run build, check, test:e2e (6 tests, local Postgres) and the Node pack-and-import smoke pass locally.