Implement WrennClient with typed resource mappings for auth, account,
API keys, users, teams, capsules, files, snapshots, hosts, and channels.
Add endpoint mapping tests plus live integration tess that authenticate
with WRENN_TEST_EMAIL/WRENN_TEST_PASS and use WRENN_API_KEY for API-key
scoped endpoints
Implement config resolution, typed errors, HTTP and WebSocket transport
helpers, and timeout handling for the SDK foundation. Add unit and local
integration tests covering the SDK foundation behaviour and align
package exports with the tsup output.
