feat(router-sdk): add getter for amounts which returns native amounts in a trade

[zhongeric]

PR Scope

Please title your PR according to the following types and scopes following conventional commits:

• fix(SDK name): will trigger a patch version
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Description

• Router Trade object now supports multiple swaps where the inputAmount != pathInput, or the first currency in a swap / route
• Also exposes a new getter amounts which returns the sum of native amounts in input/output

How Has This Been Tested?

[e.g. Manually, E2E tests, unit tests, Storybook]

Are there any breaking changes?

[e.g. Type definitions, API definitions]

If there are breaking changes, please ensure you bump the major version Bump the major version (by using the title feat(breaking): ...), post a notice in #eng-sdks, and explicitly notify all Uniswap Labs consumers of the SDK.

(Optional) Feedback Focus

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(Optional) Follow Ups

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[graphite-app]

Graphite Automations

"Request reviewers once CI passes on sdks monorepo" took an action on this PR • (01/31/25)

1 reviewer was added and 1 assignee was added to this PR based on Siyu Jiang (See-You John)'s automation.