Add Queue.shutdownUnsafe for synchronous teardown

[fubhy]

Adds Queue.shutdownUnsafe for native callbacks that must synchronously discard buffered messages and settle waiting operations before returning. Datagram socket teardown needs this ordering before potentially slow native cleanup; the datagram implementation remains in #8265.

The new API performs Queue shutdown synchronously. Queue.shutdown delegates to it inside Effect.sync. Both functions return true when the call performs teardown and false when the queue has already been shut down or completed. This changes Queue.shutdown, which previously returned true unconditionally.

An open queue shuts down with interruption, while an already-closing queue retains its completion cause. Shutdown releases blocked producers and discards buffered storage immediately.

This PR contains the Queue implementation, focused tests for synchronous settlement, cleanup, failure preservation, repeated shutdown, and the effect changeset.

Validation:

• pnpm test --run packages/effect/test/Queue.test.ts: 50 tests passed.
• pnpm doctest --run packages/effect/src/Queue.ts: 35 tests passed.
• pnpm check and pnpm lint: passed.

Closes EFF-1427

[changeset-bot]

🦋 Changeset detected

Latest commit: cdd99b2

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

This PR includes changesets to release 30 packages

Name	Type
effect	Patch
@effect/opentelemetry	Patch
@effect/vitest	Patch
@effect/ai-anthropic	Patch
@effect/ai-openai-compat	Patch
@effect/ai-openai	Patch
@effect/ai-openrouter	Patch
@effect/atom-react	Patch
@effect/atom-solid	Patch
@effect/atom-vue	Patch
@effect/platform-browser	Patch
@effect/platform-bun	Patch
@effect/platform-deno	Patch
@effect/platform-node-shared	Patch
@effect/platform-node	Patch
@effect/sql-clickhouse	Patch
@effect/sql-d1	Patch
@effect/sql-libsql	Patch
@effect/sql-mssql	Patch
@effect/sql-mysql2	Patch
@effect/sql-pg	Patch
@effect/sql-pglite	Patch
@effect/sql-sqlite-bun	Patch
@effect/sql-sqlite-do	Patch
@effect/sql-sqlite-node	Patch
@effect/sql-sqlite-react-native	Patch
@effect/sql-sqlite-wasm	Patch
@effect/docgen	Patch
@effect/doctest	Patch
@effect/openapi-generator	Patch

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[github-actions]

Bundle Size Analysis

Generated from PR build output; treat the content below as untrusted.

File Name	Current Size	Previous Size	Difference
arbitrary-combinators.ts	37.71 KB	37.71 KB	0.00 KB (0.00%)
basic.ts	6.87 KB	6.87 KB	0.00 KB (0.00%)
batching.ts	9.95 KB	9.95 KB	0.00 KB (0.00%)
brand.ts	6.45 KB	6.45 KB	0.00 KB (0.00%)
cache.ts	10.77 KB	10.77 KB	0.00 KB (0.00%)
config.ts	21.83 KB	21.83 KB	0.00 KB (0.00%)
differ.ts	20.67 KB	20.67 KB	0.00 KB (0.00%)
http-client.ts	21.94 KB	21.94 KB	0.00 KB (0.00%)
http-router.ts	36.96 KB	36.96 KB	0.00 KB (0.00%)
logger.ts	10.88 KB	10.88 KB	0.00 KB (0.00%)
metric.ts	9.02 KB	9.02 KB	0.00 KB (0.00%)
optic.ts	6.70 KB	6.70 KB	0.00 KB (0.00%)
pubsub.ts	15.10 KB	15.10 KB	0.00 KB (0.00%)
queue.ts	11.85 KB	11.85 KB	0.00 KB (0.00%)
schedule.ts	10.96 KB	10.96 KB	0.00 KB (0.00%)
schema-bigdecimal.ts	13.40 KB	13.40 KB	0.00 KB (0.00%)
schema-binary.ts	39.82 KB	39.82 KB	0.00 KB (0.00%)
schema-class.ts	20.38 KB	20.38 KB	0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts	31.18 KB	31.18 KB	0.00 KB (0.00%)
schema-representation-roundtrip.ts	26.60 KB	26.60 KB	0.00 KB (0.00%)
schema-string-transformation.ts	13.96 KB	13.96 KB	0.00 KB (0.00%)
schema-string.ts	11.55 KB	11.55 KB	0.00 KB (0.00%)
schema-template-literal.ts	15.70 KB	15.70 KB	0.00 KB (0.00%)
schema-toArbitrary.ts	37.24 KB	37.24 KB	0.00 KB (0.00%)
schema-toCodeDocument.ts	24.84 KB	24.84 KB	0.00 KB (0.00%)
schema-toCodecJson.ts	19.61 KB	19.61 KB	0.00 KB (0.00%)
schema-toEquivalence.ts	19.75 KB	19.75 KB	0.00 KB (0.00%)
schema-toFormatter.ts	19.85 KB	19.85 KB	0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts	24.15 KB	24.15 KB	0.00 KB (0.00%)
schema-toRepresentation.ts	19.89 KB	19.89 KB	0.00 KB (0.00%)
schema.ts	19.59 KB	19.59 KB	0.00 KB (0.00%)
stm.ts	12.80 KB	12.80 KB	0.00 KB (0.00%)
stream.ts	9.83 KB	9.83 KB	0.00 KB (0.00%)