Add new admin endpoints + is_multichain field (DX-5284)

[johnpmitsch]

Summary

Closes gaps between the Quicknode Admin OpenAPI spec and the SDK surface. Linear: DX-5284.

• 3 new endpoints on AdminApiClient:
  • get_rate_limits(id) — list endpoint rate-limit rows with their source (plan_default / user_override) and any override_id.
  • delete_rate_limit_override(id, override_id) — delete a user-set override by UUID.
  • get_endpoint_urls(id) — fetch http/wss URLs (plus multichain_urls) without pulling the full endpoint.
• Verb swap — update_rate_limits now sends PATCH instead of the deprecated PUT. Signature unchanged; partial-update semantics unchanged.
• New response field — is_multichain: bool on both Endpoint and SingleEndpoint. Marked required in the spec.
• Polyglot coverage — all three bindings (Python, Node, Ruby) get the new methods, with response types registered on each module, RBS signatures, and __init__.py / sdk.d.ts exports updated.
• Examples & READMEs updated across all four languages; e2e files include a typed-exception assertion on a deliberate 404 from delete_rate_limit_override.

Also folds in a one-line manifest fix to crates/core/Cargo.toml: streams_e2e was missing its required-features = ["rust"] gate, so the default-feature build couldn't find CreateStreamParams::builder() (the derive lives under feature = "rust"). Unrelated to DX-5284 but tiny and previously blocking --examples builds.

Test plan

• cargo check && just lint — clean
• cargo test -p quicknode-sdk --lib — 196 pass (+6 new wiremock tests)
• just python-build && just node-build && just ruby-build — all clean
• cargo check -p quicknode-sdk --examples — all 6 examples compile (was failing on streams_e2e before the manifest fix)
• Run each language's e2e example against the real API to verify is_multichain, get_rate_limits, update_rate_limits (PATCH), delete_rate_limit_override (404 path), and get_endpoint_urls end-to-end.

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Note

Medium Risk
Adds new admin API surface across Rust/Node/Python/Ruby and changes update_rate_limits to use PATCH, which could break callers if the backend still expects PUT or if partial-update behavior differs. Data model expansion (is_multichain) is low risk but may affect deserialization expectations in generated bindings.

Overview
Closes gaps in the Admin SDK by adding three new endpoint helpers: get_rate_limits (lists enforced rate-limit rows with source and optional override_id), delete_rate_limit_override (removes a user override by UUID), and get_endpoint_urls (fetches HTTP/WSS URLs plus optional per-network multichain_urls).

Changes update_rate_limits to send PATCH instead of PUT and updates docs/tests/examples accordingly. Also extends endpoint models with a new is_multichain boolean, wires the new types/methods through the Node/Python/Ruby bindings (exports, stubs/types, module registration, RBS), and fixes streams_e2e example gating in crates/core/Cargo.toml.

^{Reviewed by Cursor Bugbot for commit 3ec1de7. Configure here.}

[linear]

DX-5284 Add new admin functionality

Review in Linear