fix: pin alloy-sol-types & alloy-primitives to =1.6.0 (unblock v1.0.0 release)

[jeuryink]

What happened

The v1.0.0 release-plz run failed at verify package tarball with E0119:

error[E0119]: conflicting implementations of trait `Default` for type `Querier::ProductInfo`
error[E0119]: conflicting implementations of trait `Default` for type `Querier::SubaccountInfo`
  --> src/nado_utils/bindings/querier.rs:87

Root cause

cargo publish resolves dependencies fresh (the lockfile is gitignored). With alloy-sol-types unpinned ("1.6.0" → caret), it pulled 1.6.1, whose sol! all_derives now also emits Default.

ProductInfo and SubaccountInfo embed only in-block types (SpotProduct[], PerpProduct[], HealthInfo[]), so all_derives generates their standard derives — including, as of 1.6.1, Default. That collides with the explicit #[derive(..., Default, ...)] the bindings carry → duplicate impl. (Structs that embed external types like PerpProduct→PerpEngineState don't error: all_derives skips them there, so the explicit derive is still required.)

nado-core doesn't hit this because it pins alloy-sol-types = "=1.6.0"; the export's unpin_versions step strips that pin.

Fix

Pin alloy-primitives and alloy-sol-types to =1.6.0, matching nado-core. This keeps all_derives on its pre-1.6.1 derive set. alloy itself still resolves to 2.2.0 — only the sol! macro crate is held back.

Verification

cargo +1.94.1 publish --dry-run against the exact release config (alloy 2.2.0 + alloy-sol-types 1.6.0) compiles clean and only stops at the upload:

Compiling nado-sdk v1.0.0 (…/target/package/nado-sdk-1.0.0)
 Finished `dev` profile
warning: aborting upload due to dry run

Follow-up (source side)

So this doesn't regress on the next export, export_rust_sdk.py's unpin_versions needs to exempt these two crates — companion nado-core PR.

Releasing

Once merged, re-run the release-plz action to publish v1.0.0 to crates.io.

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[claude]

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[Copilot]

Pull request overview

Pins alloy-sol-types and alloy-primitives to an exact version to prevent cargo publish (fresh resolution without a lockfile) from pulling newer alloy-sol-types releases that change sol! derive behavior and break the generated bindings during packaging verification.

Changes:

• Pin alloy-primitives to =1.6.0
• Pin alloy-sol-types to =1.6.0

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