chore: import DH V2 D5.6.4 production baseline

api-v3/test/unit/inspection-evidence-integrity.test.ts

@@ -0,0 +1,18 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import { resolve } from 'node:path';
+import test from 'node:test';
+
+test('D4 migration makes evidence and communications append-only for runtime', async () => {
+  const source = await readFile(
+    resolve(
+      process.cwd(),
+      'src/database/migrations/1787241600000-phase-d4-finding-evidence-communications.ts',
+    ),
+    'utf8',
+  );
+  assert.match(source, /GRANT SELECT, INSERT ON TABLE/);
+  assert.match(source, /REVOKE UPDATE, DELETE ON TABLE/);
+  assert.match(source, /chk_inspection_finding_company_response_pdf/);
+  assert.match(source, /FOREIGN KEY \(communication_id, finding_id\)/);
+});