feat: integrate notifications with signals

Signed-off-by: Heikki Hellgren <heikki.hellgren@op.fi>

packages/backend/src/index.ts

@@ -109,6 +109,7 @@ function makeCreateEnv(config: Config) {
     logger: root.child({ type: 'plugin' }),
     discovery,
     tokenManager,
+    signalService,
   });
 
   root.info(`Created UrlReader ${reader}`);

packages/backend/src/plugins/notifications.ts

@@ -36,5 +36,6 @@ export default async function createPlugin(
     tokenManager: env.tokenManager,
     database: env.database,
     discovery: env.discovery,
+    signalService: env.signalService,
   });
 }