Clean up unreleased API surface

Since cli-module-auth and cli-module-actions are not yet released,
remove deprecated exports instead of keeping them. Also make httpJson
and getSecretStore internal to cli-node, duplicating the small httpJson
wrapper locally in each consuming package.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/cli-node/src/auth/index.ts

@@ -16,5 +16,3 @@
 
 export { CliAuth, type CliAuthCreateOptions } from './CliAuth';
 export { type StoredInstance } from './storage';
-export { httpJson, type HttpInit } from './httpJson';
-export { getSecretStore, type SecretStore } from './secretStore';