createTestContext(options?: TestContextOptions): IRequestContext
Builds a contract-faithful IRequestContext for unit-testing middleware
and handlers in isolation (no started app needed).
Replicates the kernel's internal createRequestContext construction:
id from runtime.uuid(), startTime from runtime.hrtime() (monotonic),
signal from a never-aborting AbortController. All fields are
overridable via options.
optional
options: TestContextOptions
Context options