[TheHolyWaffle]

Closes #235.

A ManagedRuntime keeps a failed layer build, so a transient failure during a Lambda cold start (a database still scaling, a throttled Secrets Manager or SSM call) failed every later invocation of the container until AWS recycled it.

Changes

• make, stream and streamFromHttpApi run on a new internal runner (internal/runtime.ts). When the runtime's build fails, the runner disposes that runtime and replaces it with a fresh one, so the next invocation builds the layer again. Disposing also closes the failed build's scope, which evicts it from a shared memoMap.
• makeWebHandler builds the router with HttpRouter.toHttpEffect and serves it with HttpEffect.toWebHandlerWith, instead of HttpRouter.toWebHandler. toWebHandler starts its own build and rejects every request when that build fails, while the WebHandler layer around it still succeeded, so the runner never saw the failure. A failed router build now fails the WebHandler layer. The default HttpMiddleware.logger and the middleware option compose as toWebHandler composes them.
• LambdaRuntime.fromLayer keeps its signature and behaviour; its signal handling moved into the internal module so the runner can share it.

Behaviour change

makeWebHandler's error channel now carries the router layer's error, since the build happens there.

Tests

Two new tests, both failing on main and passing here:

• LambdaHandler.make with a layer that fails its first build: the first invocation rejects, later ones succeed, and the layer is built twice.
• LambdaHandler.fromHttpApi with an API layer that fails its first build: the first invocation rejects, the second answers 200.

I also ran the repro from #235 against the packed dist:

invocation 1: rejected transient (builds=1)
invocation 2: resolved ok (builds=2)
invocation 3: resolved ok (builds=2)

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🦋 Changeset detected

Latest commit: b5f9efd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@effect-aws/lambda	Patch

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