feat: Export annotation helpers from allure plugin

Signed-off-by: Sergey Shevchenko <shevchenko@simple.life>

.changeset/loud-jars-kick.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-allure': patch
+---
+
+Add export for `isAllureReportAvailable` and `ALLURE_PROJECT_ID_ANNOTATION` so it can be used outside of plugin

plugins/allure/api-report.md

@@ -6,8 +6,14 @@
 /// <reference types="react" />
 
 import { BackstagePlugin } from '@backstage/core-plugin-api';
+import { Entity } from '@backstage/catalog-model';
 import { RouteRef } from '@backstage/core-plugin-api';
 
+// Warning: (ae-missing-release-tag) "ALLURE_PROJECT_ID_ANNOTATION" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
+//
+// @public (undocumented)
+export const ALLURE_PROJECT_ID_ANNOTATION = 'qameta.io/allure-project';
+
 // Warning: (ae-missing-release-tag) "allurePlugin" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
 //
 // @public (undocumented)
@@ -22,4 +28,9 @@ export const allurePlugin: BackstagePlugin<
 //
 // @public (undocumented)
 export const EntityAllureReportContent: () => JSX.Element;
+
+// Warning: (ae-missing-release-tag) "isAllureReportAvailable" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
+//
+// @public (undocumented)
+export const isAllureReportAvailable: (entity: Entity) => boolean;
 ```

plugins/allure/src/index.ts

@@ -21,3 +21,7 @@
  */
 
 export { allurePlugin, EntityAllureReportContent } from './plugin';
+export {
+  isAllureReportAvailable,
+  ALLURE_PROJECT_ID_ANNOTATION,
+} from './components/annotationHelpers';