Deduplicate artifact bytes and deliver files by authenticated hash

tests/unit/staged-files.test.ts

@@ -1,3 +1,4 @@
+import { putFileBlob } from '../../src/lib/server/db/file-blobs.js';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { chmod, mkdir, readFile, rm, stat, writeFile } from 'node:fs/promises';
 import { existsSync, writeFileSync } from 'node:fs';
@@ -104,8 +105,8 @@ describe.each<Source>(['campaign', 'beta'])('%s staged file activation', (source
     it('applies the exact queued bytes even if artifact storage changes while waiting', async () => {
         const { replacement } = await queueChange(source);
         const { db } = await import('../../src/lib/server/db/index.js');
-        db().prepare('UPDATE script_versions SET content = ? WHERE id = ?')
-            .run(Buffer.from('changed after review'), replacement.id);
+        db().prepare('UPDATE script_versions SET content_hash = ? WHERE id = ?')
+            .run(putFileBlob(Buffer.from('changed after review'), db()), replacement.id);
         await tick(source);
         expect(await readFile(destination())).toEqual(after);
     });