chore: establish Ekklesia platform foundation

tests/fixtures/boundaries/cycle/core/src/a.ts

@@ -0,0 +1,3 @@
+import { b } from "./b.js";
+
+export const a = b;

tests/fixtures/boundaries/cycle/core/src/b.ts

@@ -0,0 +1,3 @@
+import { a } from "./a.js";
+
+export const b = a;