feat: atomic revision-qualified annotations sync with ownership manifest (P5)

backend/test/registry-annotations.test.ts

@@ -1,5 +1,5 @@
 import { execFile } from "node:child_process";
-import { mkdtempSync, mkdirSync, rmSync, writeFileSync } from "node:fs";
+import { mkdtempSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { promisify } from "node:util";
@@ -59,7 +59,7 @@ function config(root: string, remoteUrl: string): WorkspaceRegistryConfig {
 
 type AnnotationsLayout = "absent" | "valid" | "malformed" | "dir";
 
-async function fixture(layout: AnnotationsLayout): Promise<{ root: string; remote: string }> {
+async function fixture(layout: AnnotationsLayout): Promise<{ root: string; remote: string; commit: string }> {
   const root = mkdtempSync(join(tmpdir(), "thoth-registry-annotations-"));
   temporaryRoots.push(root);
   const remote = join(root, "remote.git");
@@ -84,7 +84,8 @@ async function fixture(layout: AnnotationsLayout): Promise<{ root: string; remot
   await git(source, ["commit", "-m", "initial"]);
   await git(source, ["remote", "add", "origin", remote]);
   await git(source, ["push", "origin", "main"]);
-  return { root, remote };
+  const commit = await git(source, ["rev-parse", "HEAD"]);
+  return { root, remote, commit };
 }
 
 test("activation accepts a valid curated annotation blob", async () => {
@@ -114,3 +115,21 @@ test("activation rejects a tree at the annotations path", async () => {
 
   await expect(registry.bootstrap()).rejects.toMatchObject({ code: "workspace_invalid" });
 });
+
+test("activation syncs the curated annotations to the revision root when a data root is set", async () => {
+  const fixtureValue = await fixture("valid");
+  const dataRoot = mkdtempSync(join(tmpdir(), "thoth-registry-annotations-data-"));
+  temporaryRoots.push(dataRoot);
+  const registry = new WorkspaceRegistry({
+    ...config(join(fixtureValue.root, "registry"), fixtureValue.remote),
+    dataRoot,
+  });
+
+  await registry.bootstrap();
+
+  const annotationsPath = join(dataRoot, "sessions", "psd-clinical", "revisions", fixtureValue.commit, "artifacts", "mschema", "annotations.yaml");
+  const manifestPath = join(dataRoot, "sessions", "psd-clinical", "revisions", fixtureValue.commit, "artifacts", "mschema", "annotations.ownership.json");
+  expect(readFileSync(annotationsPath, "utf8")).toBe("tables: {}\n");
+  const manifest = JSON.parse(readFileSync(manifestPath, "utf8"));
+  expect(manifest).toMatchObject({ workspace: "psd-clinical", commit: fixtureValue.commit });
+});