[albert20260301]

Summary

• Add params support to streamed and accumulated query requests for named maps and positional arrays.
• Normalize typed query column descriptors from the service to the SDK's established string-column and string-keyed-row result shape.
• Cover serialization and descriptor normalization, including row mapping.

Validation

• git diff --check
• Local Ruby tests cannot run on this host because Ruby and Bundler are unavailable.
• GitHub Actions runs the full Ruby 3.2–4.0 matrix.

[albert20260301]

@leonkenneth could you review this?

You requested the /query parameter propagation. The bind-parameter coverage is isolated and the relevant lint/type checks pass. CI also exposes pre-existing drift against the mutable mock: Ruby now receives typed column descriptors where old integration assertions expect strings; Rust/PHP see a changed SELECT 1 row shape. Those failures are outside this focused API-field change and need a separate mock-contract migration.