Mark references into missing module folders

tests/missing-module-reference-test.mjs

@@ -0,0 +1,40 @@
+import assert from "node:assert/strict";
+import { buildFindings, createFileRecord } from "../scripts/core/finding-engine.js";
+import { createFileLocator } from "../scripts/core/path-utils.js";
+
+const files = [
+  createFileRecord(createFileLocator("data", "modules/legacy-module/icons/token.webp"), 1234)
+];
+
+const references = [
+  {
+    sourceType: "world-document",
+    sourceScope: { ownerType: "world", ownerId: "demo-world", systemId: "demo-system", subtype: "actors" },
+    sourceLabel: "Actor demo",
+    normalized: {
+      ...createFileLocator("data", "modules/legacy-module/icons/token.webp"),
+      targetKind: "local-file"
+    }
+  }
+];
+
+const packageActivity = {
+  modules: new Map(),
+  moduleLabels: new Map()
+};
+
+const result = buildFindings({ files, references, packageActivity, i18n: { format: (key, data={}) => `${key}:${data.modules ?? ""}` } });
+
+assert.equal(
+  result.findings.some(finding => finding.kind === "non-package-to-package-reference"),
+  false,
+  "world references into module folders that Foundry does not recognize should not be reported as unanchored package targets"
+);
+
+assert.equal(
+  result.notices.some(notice => notice.kind === "missing-module-references" && notice.moduleIds.includes("legacy-module")),
+  true,
+  "missing module references should create a dedicated report notice"
+);
+
+console.log("missing-module-reference-test: ok");