feat: add module schema discovery and validation

core/src/cli/validate-modules.ts

@@ -1,6 +1,10 @@
 import { readFile } from "node:fs/promises";
 import path from "node:path";
-import { discoverModules, ModuleDiscoveryError } from "../modules/index.js";
+import {
+  discoverModuleSchemas,
+  ModuleDiscoveryError,
+  ModuleSchemaDiscoveryError,
+} from "../modules/index.js";
 
 interface PackageVersion {
   version?: unknown;
@@ -20,18 +24,21 @@ async function main(): Promise<void> {
     readPackageVersion(path.join(repositoryRoot, "package.json")),
     readPackageVersion(path.join(repositoryRoot, "packages/module-sdk/package.json")),
   ]);
-  const modules = await discoverModules({
+  const schemaAggregate = await discoverModuleSchemas({
     moduleSdkVersion,
     modulesDirectory: path.join(repositoryRoot, "modules"),
     platformVersion,
   });
+  const modules = schemaAggregate.discoveredModules;
 
   if (modules.length === 0) {
     console.log("Module validation passed (0 modules installed).");
     return;
   }
 
-  console.log(`Module validation passed (${modules.length} modules):`);
+  console.log(
+    `Module validation passed (${modules.length} modules, ${schemaAggregate.tables.length} tables):`,
+  );
   for (const discoveredModule of modules) {
     console.log(`- ${discoveredModule.manifest.id}@${discoveredModule.manifest.version}`);
   }
@@ -44,6 +51,12 @@ main().catch((error: unknown) => {
       const issuePath = issue.path ? ` (${issue.path})` : "";
       console.error(`[${issue.code}] ${issue.moduleDirectory}${issuePath}: ${issue.message}`);
     }
+  } else if (error instanceof ModuleSchemaDiscoveryError) {
+    console.error(error.message);
+    for (const issue of error.issues) {
+      const issuePath = issue.path ? ` (${issue.path})` : "";
+      console.error(`[${issue.code}] ${issue.moduleId}${issuePath}: ${issue.message}`);
+    }
   } else {
     console.error(error instanceof Error ? error.message : String(error));
   }