Improve Schema type-level performance

[gcanti]

OpenAI Generated smoke test, measured against main:

Total instantiations
main:     2,115,660
current:    973,683
delta:   -1,141,977 (-54.0%)

Baseline-adjusted:

Schema import baseline
main:       659,062
current:    532,656

Generated schema marginal cost
main:     1,456,598
current:    441,027
delta:   -1,015,571 (-69.7%)

Short version: compiling packages/ai/openai/src/Generated.ts now uses ~54% fewer total type instantiations vs main. If we subtract the fixed cost of importing Effect/Schema, the generated schema code itself is down ~70%.

[changeset-bot]

🦋 Changeset detected

Latest commit: 683c865

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

This PR includes changesets to release 27 packages

Name	Type
effect	Patch
@effect/opentelemetry	Patch
@effect/platform-browser	Patch
@effect/platform-bun	Patch
@effect/platform-node-shared	Patch
@effect/platform-node	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/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/openapi-generator	Patch

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[github-actions]

Bundle Size Analysis

File Name	Current Size	Previous Size	Difference
basic.ts	6.58 KB	6.58 KB	0.00 KB (0.00%)
batching.ts	9.09 KB	9.09 KB	0.00 KB (0.00%)
brand.ts	6.14 KB	6.14 KB	0.00 KB (0.00%)
cache.ts	9.79 KB	9.79 KB	0.00 KB (0.00%)
config.ts	18.74 KB	18.80 KB	-0.07 KB (-0.36%)
differ.ts	16.81 KB	16.81 KB	-0.00 KB (-0.01%)
http-client.ts	20.34 KB	20.34 KB	0.00 KB (0.00%)
logger.ts	10.12 KB	10.12 KB	0.00 KB (0.00%)
metric.ts	8.42 KB	8.42 KB	0.00 KB (0.00%)
optic.ts	7.35 KB	7.35 KB	0.00 KB (0.00%)
pubsub.ts	13.89 KB	13.89 KB	0.00 KB (0.00%)
queue.ts	10.98 KB	10.98 KB	0.00 KB (0.00%)
schedule.ts	10.19 KB	10.19 KB	0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts	3.49 KB	3.49 KB	0.00 KB (0.00%)
schema-representation-roundtrip.ts	26.80 KB	26.81 KB	-0.00 KB (-0.01%)
schema-string-transformation.ts	12.48 KB	12.48 KB	0.00 KB (0.00%)
schema-string.ts	10.18 KB	10.18 KB	0.00 KB (0.00%)
schema-template-literal.ts	14.05 KB	14.05 KB	+0.00 KB (+0.01%)
schema-toArbitraryLazy.ts	20.47 KB	20.47 KB	0.00 KB (0.00%)
schema-toCodeDocument.ts	21.04 KB	21.04 KB	-0.00 KB (-0.01%)
schema-toCodecJson.ts	17.62 KB	17.62 KB	0.00 KB (0.00%)
schema-toEquivalence.ts	17.52 KB	17.52 KB	+0.00 KB (+0.02%)
schema-toFormatter.ts	17.37 KB	17.37 KB	-0.00 KB (-0.02%)
schema-toJsonSchemaDocument.ts	19.93 KB	19.93 KB	0.00 KB (0.00%)
schema-toRepresentation.ts	17.91 KB	17.92 KB	-0.01 KB (-0.03%)
schema.ts	16.95 KB	16.95 KB	-0.00 KB (-0.01%)
stm.ts	11.87 KB	11.87 KB	0.00 KB (0.00%)
stream.ts	9.20 KB	9.20 KB	0.00 KB (0.00%)