[joshglogau]

Add contracts.sysio.swap.quoteSwap, a pure exact-input depot estimate over generated pool and LIQ rows. It accrues pending holder yield before pricing and returns exact gross output, output-denominated fees, net output and minimum output.

• Preserve contract integer rounding, token precision and overflow checks; reject missing yield snapshots and unsafe numeric inputs.
• Keep RPC, signing, action construction and execution readiness with consumers. No new dependency, generated ABI, operator facade or package bump.
• Document the source revision, exact pool/holder/yield-index lookups, verified absent rows and snapshot coherence limits in the SDK README, alongside a working quick start and contract examples.

Validation: workspace build, lint and 969 tests / 84 suites pass, including 22 quote cases. README TypeScript examples also pass strict type checking. Published producer dependencies were used without sibling artifact links. Lockfile validation and platform flow tests remain waived; live swap parity is not claimed.

Consumer: Wire-Network/wire-hub-webapp#191 uses indicative quotes with execution disabled. #108 separately updates outpost artifacts. Publish this helper through the normal SDK release after review; execution consumers must refresh coherent state, validate authority/Andon and enforce positive minimum output on chain.

[valthon]

No blocking correctness findings. The 22 quote tests passed locally against this head, and hosted CI passed. Arithmetic matches the inspected depot source; live swap parity and the full local CI gate were not rerun. One nonblocking documentation finding is attached inline.