fix(typert): address remote gateway review

packages/typert/registry/src/service.ts

@@ -7,6 +7,7 @@
 
 import { Context, Service } from 'cordis'
 import { z } from 'zod'
+import { isTypeRTRemoteSegment } from '@deepseek-ai/dsh-type-meta'
 import type {
   InvocationDescriptor,
   TypeRTClientContextBinder,
@@ -600,8 +601,9 @@ function validateCodec(codec: InvocationDescriptor['result'], subject: string):
 }
 
 function validateWireName(subject: string, value: string): void {
-  validateSegment(subject, value)
-  if (value.includes('/')) throw new Error(`typert: invalid ${subject} "${value}" — must not contain "/"`)
+  if (!isTypeRTRemoteSegment(value)) {
+    throw new Error(`typert: invalid ${subject} "${value}" — must contain only RPC endpoint segment characters`)
+  }
 }
 
 function validateSegment(subject: string, value: string): void {

packages/typert/registry/tests/typert.spec.ts

@@ -247,6 +247,14 @@ describe('TypertRegistry', () => {
     })).toThrow('endpoint "goals/create" is already registered')
   })
 
+  it.each(['create#v2', 'create goal'])('rejects untransportable invocation method %s', async (method) => {
+    const ctx = await makeCtx()
+    expect(() => ctx.typert.remotes.register({
+      package: '@fixture/invalid-endpoint',
+      descriptors: [{ ...invocation(), method }],
+    })).toThrow('RPC endpoint segment characters')
+  })
+
   it('mounts Remote contributions in the calling fiber and withdraws them exactly', async () => {
     const ctx = await makeCtx()
     const descriptor = invocation()