feat(core): reload config on filesystem changes

packages/schema/src/config.ts

@@ -0,0 +1,10 @@
+export * as Config from "./config.js"
+
+import { ephemeral, inventory } from "./event.js"
+
+const Updated = ephemeral({
+  type: "config.updated",
+  schema: {},
+})
+
+export const Event = { Updated, Definitions: inventory(Updated) }