fix(test): run cleanup when a teardown hook fails (runner + Bun adapter)

[sam-goodwin]

Companion to #1341: the Vitest adapter's teardown-ordering fix revealed a broader class — a failing teardown hook silently drops later cleanup, leaking the shared scope and local provider sidecar for the rest of the test process. The other two adapters each had it with a different trigger.

alchemy-test runner — runAfterAll short-circuited on the first failing hook:

// before: Effect.forEach on the error channel — first failure skips the rest
// after: every afterAll runs; failures aggregate into fileErrors
const exits = yield* Effect.forEach(suite.afterAll, (hook) =>
  Effect.suspend(hook.body).pipe(Effect.timeout(...), Effect.exit),
).pipe(withCapture(ctx.fileLogs));

beforeAll keeps short-circuit semantics (a failed setup invalidates what follows); teardowns all run, matching every mainstream runner's contract.

Test/Bun — probed bun:test empirically: afterAll runs in registration order ✓, and still runs after a failed beforeAll ✓, but the chain stops once a hook throws — skipping the microtask-registered fallback. The adapter now guards user teardowns:

const guardTeardown = (eff) => () =>
  runEff(eff).catch(async (error) => {
    await Effect.runPromise(closeAll); // idempotent
    throw error;                       // still fails the suite
  });

Both regression tests are two-sided and red against the previous code:

• alchemy-test/test/Runner.test.ts — a file with a failing first afterAll must still run the second (sentinel asserted from the spawned runner's output) and exit non-zero.
• test/Test/Bun.test.ts — spawns real bun test on a fixture using the public adapter; a shared-scope finalizer sentinel proves the cleanup ran after the throwing user teardown.

[alchemy-version-bot]

Install the packages built from this commit:

Alchemy

alchemy

bun add https://pkg.ing/alchemy/e4d10d1

@alchemy.run/better-auth

bun add https://pkg.ing/@alchemy.run/better-auth/e4d10d1

@alchemy.run/cloudflare-runtime

bun add https://pkg.ing/@alchemy.run/cloudflare-runtime/e4d10d1

@alchemy.run/frontend-frameworks

bun add https://pkg.ing/@alchemy.run/frontend-frameworks/e4d10d1

@alchemy.run/node-utils

bun add https://pkg.ing/@alchemy.run/node-utils/e4d10d1

@alchemy.run/pr-package

bun add https://pkg.ing/@alchemy.run/pr-package/e4d10d1

@alchemy.run/floci

bun add https://pkg.ing/@alchemy.run/floci/e4d10d1

Distilled

@distilled.cloud/core

bun add https://pkg.ing/@distilled.cloud/core/dd2a322

@distilled.cloud/aws

bun add https://pkg.ing/@distilled.cloud/aws/dd2a322

@distilled.cloud/axiom

bun add https://pkg.ing/@distilled.cloud/axiom/dd2a322

@distilled.cloud/cloudflare

bun add https://pkg.ing/@distilled.cloud/cloudflare/dd2a322

@distilled.cloud/hetzner

bun add https://pkg.ing/@distilled.cloud/hetzner/dd2a322

@distilled.cloud/neon

bun add https://pkg.ing/@distilled.cloud/neon/dd2a322

@distilled.cloud/planetscale

bun add https://pkg.ing/@distilled.cloud/planetscale/dd2a322

[sam-goodwin]

Folded into #1339.