feat(tempo): add key authorization manager

[deodad]

Summary

Add a Tempo key authorization manager that access key accounts can use to attach pending key authorizations during transaction preparation.

Motivation

Access key transactions need a place to carry pending key authorizations without making every storage implementation perform chain reads or attaching a generic prepare hook to all accounts.

Changes

• Added src/tempo/KeyAuthorizationManager.ts with a storage-like manager interface and memory source.
• Added optional keyAuthorizationManager support to Tempo access key account constructors in src/tempo/Account.ts.
• Updated Tempo prepareTransactionRequest to attach pending key authorizations and remove stale entries after on-chain authorization is detected.
• Passed client into chain prepare hooks so Tempo can check key metadata during preparation.

Testing

• pnpm check:types
• pnpm exec biome check src/types/chain.ts src/actions/wallet/prepareTransactionRequest.ts src/tempo/Account.ts src/tempo/KeyAuthorizationManager.ts src/tempo/index.ts src/tempo/chainConfig.ts src/tempo/chainConfig.test.ts
• pnpm test src/tempo/chainConfig.test.ts -t keyAuthorizationManager

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🦋 Changeset detected

Latest commit: 067ffcf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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viem	Patch

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commit: 067ffcf