feat(rpc): Add parseOptions

[patroza]

#2124 RPC schema parsing in v4 was not configurable at the RPC boundary, forcing schema-level annotations for behaviors like concurrency. This change adds first-class parse concurrency support to both client and server so schema parsing concurrency can be controlled per RPC instance.

• API surface

  • Added parseOptions?: Pick<AST.ParseOptions, "concurrency"> to:
    • RpcClient.make(...)
    • RpcServer.make(...)
    • server forwarding APIs (layer, layerHttp, toHttpEffect, toHttpEffectWebsocket)

• Client-side wiring

  • Threaded concurrency parse options through client schema operations used during request/response processing:
    • payload encoding
    • stream chunk decoding
    • exit decoding
  • Refactored schema cache creation to be parse-options aware per client instance.
  • Normalized runtime parseOptions before schema usage so only { concurrency } is forwarded, even if extra properties are provided at runtime.

• Server-side wiring

  • Threaded concurrency parse options through server schema operations used during request/response processing:
    • request payload decoding
    • stream chunk encoding
    • exit encoding
    • defect encoding
  • Normalized runtime parseOptions before schema usage so only { concurrency } is forwarded, even if extra properties are provided at runtime.

• Tests

  • Updated RPC parse-options tests to validate concurrency-only configuration on both client and server paths.
  • Added coverage that passes extra runtime parse options (for example onExcessProperty) and verifies only concurrency is effectively applied.

• Release note

  • Added a changeset describing RPC parse concurrency capability.

Example usage:

const client = yield* RpcClient.make(group, {
  parseOptions: {
    concurrency: "unbounded"
  }
})

const server = yield* RpcServer.make(group, {
  parseOptions: {
    concurrency: 16
  }
})

[changeset-bot]

🦋 Changeset detected

Latest commit: 5929134

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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