docs: reserve seam for complete capabilities

packages/code-runtime/code-runtime/src/index.ts

@@ -1,5 +1,5 @@
 /**
- * Code-execution seam for running one model-written program against host async bindings.
+ * Service Definition for the code-execution capability seam that runs one model-written program against host async bindings.
  * Runtimes know nothing about tools or sessions; consumers own those concerns.
  * @module @deepseek-ai/dsh-code-runtime
  */
@@ -96,7 +96,7 @@ declare module 'cordis' {
 
 /**
  * Registers one `ctx.codeRuntime` implementation. Program, budget, abort, and substrate
- * failures resolve in {@link CodeRunResult}; only seam misuse rejects. Implementations bridge
+ * failures resolve in {@link CodeRunResult}; only Service Definition contract misuse rejects. Implementations bridge
  * structured-cloneable bindings, materialize each declared namespace rejection
  * class, treat programs as hostile peers, isolate runs from one another, and
  * terminate and await in-flight runs during disposal.
@@ -127,7 +127,7 @@ export abstract class CodeRuntime extends Service {
   /**
    * Execute one program against the request's bindings and capture what it
    * emitted. See the class doc for the resolution contract (error is a result
-   * field; rejection means seam misuse only).
+   * field; rejection means Service Definition contract misuse only).
    * @param request - the program, its bindings, and the abort signal; the
    *   request carries everything the runtime acts on, with no hidden defaults.
    * @returns the run's outcome: completion value (when transferable), the