routes/apps.ts: Implement /api/applications endpoint

src/node/routes/apps.ts

@@ -0,0 +1,12 @@
+import * as express from "express"
+import { PluginAPI } from "../plugin"
+
+export function router(papi: PluginAPI): express.Router {
+  const router = express.Router()
+
+  router.get("/", async (req, res) => {
+    res.json(await papi.applications())
+  })
+  
+  return router
+}