feat: add module contracts and discovery

packages/module-sdk/src/define-module.ts

@@ -0,0 +1,9 @@
+import {
+  type ModuleManifest,
+  type ModuleManifestInput,
+  parseModuleManifest,
+} from "@ekklesia/contracts";
+
+export function defineModule(manifest: ModuleManifestInput): ModuleManifest {
+  return parseModuleManifest(manifest);
+}

packages/module-sdk/src/index.ts

@@ -0,0 +1,2 @@
+export * from "@ekklesia/contracts";
+export * from "./define-module.js";