feat: add module schema discovery and validation

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

@@ -0,0 +1,19 @@
+import {
+  type ModuleId,
+  type ModuleSchemaDefinition,
+  moduleTableName,
+  moduleTablePrefix,
+  parseModuleSchemaDefinition,
+} from "@ekklesia/contracts";
+import { pgTableCreator } from "drizzle-orm/pg-core";
+
+export function createModuleTable(moduleId: ModuleId) {
+  moduleTablePrefix(moduleId);
+  return pgTableCreator((localName) => moduleTableName(moduleId, localName));
+}
+
+export function defineModuleSchema<const Definition extends ModuleSchemaDefinition>(
+  definition: Definition,
+): Readonly<Definition> {
+  return parseModuleSchemaDefinition(definition) as Readonly<Definition>;
+}

packages/module-sdk/src/index.ts

@@ -1,2 +1,3 @@
 export * from "@ekklesia/contracts";
 export * from "./define-module-runtime.js";
+export * from "./define-module-schema.js";