test(render-method-2024): assert digestMultibase covers raw bytes, not cleaned template

[ashleythedeveloper]

Adds a regression test that locks the documented contract on constructRenderMethodAsync: the digestMultibase it generates covers the raw template bytes the caller passed in, not the whitespace-normalised template that ends up stored in the output.

The existing test suite covered the two halves separately ("digest verifies against the input template" with a single-line template that has nothing to normalise; "stored template is cleaned" without checking the digest). The new test exercises a multi-line input and asserts the divergence in one place, including the negative case: parsed.verify(result.template) MUST be false. A future change that switched the hash to operate on the cleaned bytes (to make the digest "consistent" with the stored field) would fail this test.

Test-only change; no functional code touched. No version bump.

Test plan

• New test passes locally (yarn test src/__tests__/construct-render-method-async.test.ts → 10 tests pass)
• Full suite still green
• Lint, format, build clean

[github-actions]

Code Coverage Report

Lines	Statements	Branches	Functions
	100% (172/172)	97.91% (47/48)	90.9% (30/33)

Tests	Skipped	Failures	Errors	Time
99	0 💤	0 ❌	0 🔥	2.386s ⏱️