docs(journeys): document as-organization-id web component attribute

docs/journeys/web-components.md

@@ -75,6 +75,7 @@ All attributes are set as standard HTML attributes on the `<epilot-journey>` ele
 | `context-data`           | JSON string                   | —               | Additional contextual data passed to the Journey and included with the submission. Must be a JSON-encoded string of key-value pairs. See [Context Data](#context-data). |
 | `data-injection-options` | JSON string                   | —               | Pre-fill Journey fields and control the starting step. Must be a JSON-encoded string. See [Data Injection](#data-injection).                                            |
 | `journey-token`          | `string`                      | —               | A JWT token used for [post-qualification Journeys](./post-qualification).                                                                                               |
+| `as-organization-id`     | `string`                      | —               | Organization ID to use as the Journey's organization context. Sent as the `x-epilot-org-id` header on entity requests. Useful in partner / shared-entities scenarios where the Journey needs to access data owned by a different organization. |
 | `is-full-screen-entered` | `"true"` \| `"false"`         | `"false"`       | Controls whether a full-screen Journey is visible. Set to `"true"` to open it. Only applies when `mode` is `"full-screen"`.                                             |
 | `is-embedded`            | `"true"` \| `"false"`         | `"false"`       | Indicates the Journey is embedded on a host app.                                                                                                                        |
 | `debug`                  | `"true"` \| `"false"`         | `"false"`       | Enables debug mode for development and troubleshooting.                                                                                                                 |