Deduplicate artifact bytes and deliver files by authenticated hash

tests/unit/server-history-views.test.ts

@@ -1,3 +1,4 @@
+import { putFileBlob } from '../../src/lib/server/db/file-blobs.js';
 import { afterEach, beforeEach, expect, it, vi } from 'vitest';
 import { newFixture, type Fixture } from '../helpers/fixture.js';
 
@@ -20,8 +21,8 @@ it('exposes retained campaign and provisioning history without rebinding links t
     finishDeployment(operation, { ok: true });
     db().prepare("INSERT INTO deployments (id, action, started_at, finished_at) VALUES ('history-campaign', 'promote', ?, ?)").run(at, at);
     db().prepare("INSERT INTO deployment_servers (deployment_id, server, files_changed, restart_state) VALUES ('history-campaign', ?, 1, 'done')").run(server);
-    db().prepare("INSERT INTO deployment_files (deployment_id, server, verb, rel_path, content_before, content_after) VALUES ('history-campaign', ?, 'updated', 'script.gsc', ?, ?)")
-        .run(server, Buffer.from('before'), Buffer.from('after'));
+    db().prepare("INSERT INTO deployment_files (deployment_id, server, verb, rel_path, content_before_hash, content_after_hash) VALUES ('history-campaign', ?, 'updated', 'script.gsc', ?, ?)")
+        .run(server, putFileBlob(Buffer.from('before'), db()), putFileBlob(Buffer.from('after'), db()));
     db().prepare('DELETE FROM servers WHERE name = ?').run(server);
     await seedServerRegistry();
     closeDb();