test(harness): wind down a throwaway vault

[hpmaxi]

Summary

The harness never ran a wind-down, so the generated bindings never met the deployed Wasm on that path. This PR adds a wind-down run on a throwaway vault on the local network. It deploys a full vault set built from a short_wind_down Wasm, which drops the seven-day minimum and is never deployed elsewhere, takes it through a deposit, a redemption request, a wind-down and a claim, and checks that every function in the vault's spec is called through the generated client at least once.

Changes

• deploy.ts is split into reusable functions and exposes deployThrowaway, which wires a full vault set from any vault Wasm
• clients.ts exposes connectTo, so a test can connect to a deployment that was never written to disk
• A new wind-down.test.ts suite runs the wind-down scenario on the local network and checks every vault function is exercised
• docs/TESTING.md and README.md describe the new suite and the short_wind_down build it needs

Deviations

• The task asked for the CI step to be saved rather than pushed. It's saved as .superpowers/sdd/2026-10-14-00-index/deferred/0004-ci-run-a-wind-down-on-a-throwaway-vault.patch for the controller to apply, so "Runs in CI after the guards" is unchecked below until that lands.

Acceptance criteria

• Refuses to run on any network but local
• Deposit, claim, redeem request, wind-down proposal and activation, a round and a claim all succeed
• Every function in the vault's spec is called at least once
• Runs in CI after the guards

Test plan

Automated tests

1. Not yet: the CI step that runs this suite is deferred (see Deviations). The manual steps below are the current verification.

Manual verification

1. On a local quickstart network, after stellar contract build, CARGO_TARGET_DIR=target/short-wind-down stellar contract build --package async-vault --features short_wind_down and npm run build:clients: run HARNESS_NETWORK=local npm run deploy -w scripts/harness then npm run test:wind-down -w scripts/harness. All 6 tests in "a wind-down on a throwaway vault" pass.
2. Against that same fresh deploy, npm run test:happy-path -w scripts/harness (24 tests) and npm run test:guards -w scripts/harness (46 tests) still pass, confirming the deploy.ts refactor didn't change its behavior.

Breaking changes

None.

Checklist

• Self-reviewed my own diff
• Tests added or updated
• Docs updated (if applicable)
• No unrelated changes bundled in

Screenshots

None.

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Project	Deployment	Actions	Updated
strata-vault-kit-app	Ready	Preview	Oct 19, 2026 5:32pm UTC