refactor: replace overloaded surface terminology

packages/tasks/tool-tasks/src/index.ts

@@ -1,6 +1,6 @@
 /**
  * Model-facing `task_output`, `task_list`, and `task_kill` tools over
- * `ctx.tasks`. Loading the plugin attaches the control surface required by
+ * `ctx.tasks`. Loading the plugin attaches the controller required by
  * producers. It also injects unreported completions as durable context for the
  * owner's next request; notices do not wake idle agents.
  * @module @deepseek-ai/dsh-tool-tasks
@@ -216,8 +216,8 @@ export function apply(ctx: Context, config: Config): void {
     return boundSingleText(result.content, maxBytes)
   }
 
-  // Producers may start work only while a control surface is attached.
-  ctx.tasks.attachSurface('tool-tasks')
+  // Producers may start work only while a controller is attached.
+  ctx.tasks.attachController('tool-tasks')
 
   // Cross-call guidance follows the bash section and precedes product sections.
   ctx.systemPrompt.section({