docs: reserve seam for complete capabilities

packages/host/apiproxy/tests/api-proxy-cold.spec.ts

@@ -518,7 +518,7 @@ describe('sessions.prompt synchronous rejection', () => {
     await ctx.plugin(UserInteractionService)
     const session = ctx.sessions.create(sid('session-throwing'))
     // A live structural stub whose delivery verbs throw synchronously, the
-    // shape a disposed loop presents at this seam.
+    // shape a disposed loop presents at this gateway boundary.
     ctx.agents.register({
       id: session.id,
       session,

packages/host/apiproxy/tests/api-proxy-config.spec.ts

@@ -44,7 +44,7 @@ function expectErr<T>(response: RpcResponse<T>): { code: string; message: string
   return response.result.error
 }
 
-/** In-memory settings provider: the seam base class owns all tested behavior. */
+/** In-memory settings provider: the Service Definition base class owns all tested behavior. */
 class MemorySettings extends Settings {
   doc: Record<string, unknown>
 

packages/host/apiproxy/tests/api-proxy-subagents.spec.ts

@@ -91,7 +91,7 @@ function bench(options: {
     locate: () => undefined,
   })
   // The gateway's own projection push feed subscribes at construction; the
-  // no-op disposer keeps that seam quiet while these tests pin history reads.
+  // no-op disposer keeps that feed quiet while these tests pin history reads.
   ctx.provide('sessionProjections', { snapshot, restore, onChanged: () => () => {} })
   ctx.provide('userInteraction', { registerProvider: () => () => {} })
   const api = createApiProxy(ctx, {