Speed up inbound WebSocket validation (#1895)

* perf(protocol): generate inbound ws validators

* perf(client): use generated ws validation

* docs(protocol): document generated validation

* fix(protocol): make validator generation source-only

* test(protocol): cover explicit provider model normalization

* fix(protocol): preserve inbound compat defaults

* fix(protocol): make validator import rewrite portable

* fix(protocol): harden validation safety checks

* fix(protocol): guard generated validator boundaries

* fix(protocol): normalize legacy inbound defaults

* fix(protocol): simplify generated validation safety net

* fix(protocol): keep cold typecheck source-only

* fix(protocol): encapsulate validator codegen

* fix(protocol): bootstrap source-alias typechecks

* fix(app): keep source aliases out of bundler config

* fix(protocol): harden validator codegen packaging

* fix(protocol): own zod-aot patches in generator

* fix(protocol): trim validator safety net

* fix(client): normalize provider updates before dispatch

* fix(protocol): keep validator generation out of install

packages/protocol/codegen/README.md

@@ -0,0 +1,7 @@
+# Protocol Validator Codegen
+
+This directory is build-time only. `ws-outbound.compile.ts` is the zod-aot discovery entry for the inbound WebSocket validator.
+
+The generated runtime file is written to `../src/generated/validation/ws-outbound.aot.ts` and is not committed. The protocol package owns every generation trigger through its npm lifecycle scripts.
+
+`zod-aot` is exact-pinned, and the protocol generator applies the small compiler patches it requires before generation. Treat changes to those patches like compiler changes: regenerate, inspect the output, and run the protocol validation regression tests before shipping.

packages/protocol/codegen/ws-outbound.compile.ts

@@ -0,0 +1,4 @@
+import { compile } from "zod-aot";
+import { WSOutboundMessageSchema as SourceWSOutboundMessageSchema } from "../src/messages.js";
+
+export const WSOutboundMessageSchema = compile(SourceWSOutboundMessageSchema);