fix(sqlite-do): support nested storage transactions

[tim-smart]

Summary

Support nested withTransaction calls in @effect/sql-sqlite-do through nested DurableObjectStorage.transaction() callbacks. Children reuse the active connection with an incremented transaction depth; only the outer transaction takes the semaphore.

Effect failures call txn.rollback() and resolve the storage callback, allowing caught child failures and interruptions to roll back independently. Includes module documentation and a patch changeset. Concurrent siblings remain unsupported.

Reject cross-client withTransaction calls before opening storage or running the body. Credit to danieljvdm for this guard, ported from #8258. The guard covers withTransaction; it does not fix the existing cross-client plain-query routing issue.

Tests were added and verified failing in separate runs before implementation. Implementation commits make no test changes.

Validation

• nix develop -c pnpm test --run packages/sql/sqlite-do/test/Client.test.ts: all 14 tests pass, including the cross-client regression.
• nix develop -c pnpm check: passed.
• nix develop -c pnpm lint-fix and nix develop -c pnpm lint: passed.
• git diff --check: passed.
• The earlier nix develop -c pnpm jsdocs --check run reported two existing formatting diagnostics in unchanged packages/effect/src/unstable/ai/McpSchema.ts (short description must be one paragraph; description content must appear under a standard section heading).

Closes EFF-1390

[changeset-bot]

🦋 Changeset detected

Latest commit: deb174c

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

This PR includes changesets to release 30 packages

Name	Type
@effect/sql-sqlite-do	Patch
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-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	34.58 KB	34.58 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	21.51 KB	21.51 KB	0.00 KB (0.00%)
differ.ts	20.32 KB	20.32 KB	0.00 KB (0.00%)
http-client.ts	21.94 KB	21.94 KB	0.00 KB (0.00%)
http-router.ts	36.92 KB	36.92 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-binary.ts	39.51 KB	39.51 KB	0.00 KB (0.00%)
schema-class.ts	20.06 KB	20.06 KB	0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts	30.93 KB	30.93 KB	0.00 KB (0.00%)
schema-representation-roundtrip.ts	26.34 KB	26.34 KB	0.00 KB (0.00%)
schema-string-transformation.ts	13.63 KB	13.63 KB	0.00 KB (0.00%)
schema-string.ts	11.12 KB	11.12 KB	0.00 KB (0.00%)
schema-template-literal.ts	15.41 KB	15.41 KB	0.00 KB (0.00%)
schema-toArbitrary.ts	34.10 KB	34.10 KB	0.00 KB (0.00%)
schema-toCodeDocument.ts	24.56 KB	24.56 KB	0.00 KB (0.00%)
schema-toCodecJson.ts	19.27 KB	19.27 KB	0.00 KB (0.00%)
schema-toEquivalence.ts	19.38 KB	19.38 KB	0.00 KB (0.00%)
schema-toFormatter.ts	19.49 KB	19.49 KB	0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts	23.77 KB	23.77 KB	0.00 KB (0.00%)
schema-toRepresentation.ts	19.54 KB	19.54 KB	0.00 KB (0.00%)
schema.ts	19.27 KB	19.27 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%)