CLI: Update SDK to 82b88d8f8050949f53eee233bfb1b67d6f9fe49e and add project commands

Add CLI coverage for the hidden-but-supported project and project-limit endpoints while bumping the Go SDK to the latest release containing this revision.

Tested: go test ./cmd/..., go build ./..., kernel projects create/get/update/list/limits get/limits update/delete
Made-with: Cursor

Author: kernel-internal[bot]