Document workflow terminate rollback

src/content/docs/workflows/build/trigger-workflows.mdx

@@ -160,6 +160,21 @@ let instance = await env.MY_WORKFLOW.get("abc-123");
 await instance.terminate(); // Returns Promise<void>
 ```
 
+To run registered rollback handlers before terminating, pass `rollback: true`:
+
+```ts
+let instance = await env.MY_WORKFLOW.get("abc-123");
+await instance.terminate({ rollback: true }); // Returns Promise<void>
+```
+
+You can also run rollback handlers from Wrangler:
+
+```sh
+npx wrangler workflows instances terminate <WORKFLOW_NAME> <INSTANCE_ID> --rollback
+# For a local Workflows instance during wrangler dev:
+npx wrangler workflows instances terminate <WORKFLOW_NAME> <INSTANCE_ID> --local --rollback
+```
+
 Once stopped/terminated, the Workflow instance _cannot_ be resumed.
 
 ### Restart a Workflow

src/content/docs/workflows/build/workers-api.mdx

@@ -477,7 +477,7 @@ declare abstract class WorkflowInstance {
 	/**
 	 * Terminate the instance. If it is errored, terminated or complete, an error will be thrown.
 	 */
-	public terminate(): Promise<void>;
+	public terminate(options?: WorkflowInstanceTerminateOptions): Promise<void>;
 	/**
 	 * Restart the instance.
 	 */
@@ -523,7 +523,31 @@ Restart a Workflow instance.
 
 Terminate a Workflow instance.
 
-- <code>terminate(): Promise&lt;void&gt;</code>
+- <code>terminate(options?: WorkflowInstanceTerminateOptions): Promise&lt;void&gt;</code>
+  - `options` - optional properties that control how the instance is terminated.
+
+```ts
+let instance = await env.MY_WORKFLOW.get("abc-123");
+
+// Terminate without running rollback handlers.
+await instance.terminate();
+
+// Run registered rollback handlers before terminating.
+await instance.terminate({ rollback: true });
+```
+
+If `rollback` is `true`, Workflows runs the rollback handlers registered by completed or eligible steps before the instance reaches the `terminated` state. Steps without rollback handlers are skipped.
+
+#### WorkflowInstanceTerminateOptions
+
+```ts
+interface WorkflowInstanceTerminateOptions {
+	/**
+	 * If true, run registered rollback handlers before terminating the instance.
+	 */
+	rollback?: boolean;
+}
+```
 
 ### sendEvent