[Toolbox][SDK] Community-built SDK to integrate with CBWeb3 (contract-first, spec-driven)

[carolacnet]

Goal
Provide a community-maintained SDK/client library that accelerates integration with CBWeb3 by offering typed clients, standard error handling, and reference examples, aligned with Toolbox artifacts (contracts, mocks, test vectors, conformance).

Scope (v1)

• Generate and/or implement client stubs from Toolbox interface contracts (e.g., OpenAPI/JSON schemas/ABIs, as applicable).
• Provide a minimal set of features:
  • request/response models + validation helpers
  • consistent error mapping (retries, timeouts, idempotency guidance)
  • safe logging defaults (no sensitive payloads)
  • example “golden path” integration snippets
• CI: lint/tests + compatibility checks against test vectors and reference mocks.

Non-goals

• Key management, custody, HSM integration, production secrets, or any privileged runtime material.
• Replacing the core implementation—this is an integration accelerator, not the network itself.

Acceptance criteria

• SDK builds and runs using non-sensitive sample configs
• At least 1 end-to-end example passes against reference mocks
• Versioned release + changelog + clear upgrade notes

Open questions
Target language(s) for v1 (e.g., TypeScript/Java/Python) and the initial API surface to support.