feat(router-lite-sdk): RPC-only lightweight router for Uniswap v2/v3/v4

[marktoda]

Wave-based route discovery, block-pinned canonical quoting, custody-verified Universal Router encoding, readiness + real-trader preflight. Verified manifests for mainnet/Base/Unichain/Arbitrum, quote-only mode, viem-only runtime. 602 unit / 34 executed-fork tests, 73-shape differential encoder oracle, mutation-verified engine coverage, first live canary fixtures.

PR Scope

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

• fix(SDK name): will trigger a patch version
• chore(<type>): will not trigger any release and should be used for internal repo changes
• <type>(public): will trigger a patch version for non-code changes (e.g. README changes)
• feat(SDK name): will trigger a minor version
• feat(breaking): will trigger a major version for a breaking change

Description

[Summary of the change, motivation, and context]

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

[Specific parts of this PR you'd like feedback on, or that reviewers should pay closer attention to]

(Optional) Follow Ups

[Things that weren't addressed in this PR, ways you plan to build on this work, or other ways this work could be extended]

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	fast-check@​3.23.2

View full report

[datadog-official]

⚠️ Warnings

🚦 1 Pipeline job failed

Code Quality Checks | Lint, Build, and Test     

See error

Import errors for multiple files, including '@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol' and '@openzeppelin/contracts/token/ERC20/IERC20.sol', leading to compilation failure.

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