phase 16 implementation

tests/unit/integrations/redaction.test.ts

@@ -0,0 +1,21 @@
+import { containsSensitiveKey, redactSensitive } from '@/lib/demo/redaction';
+import { describe, expect, it } from 'vitest';
+
+describe('privacy-safe diagnostics', () => {
+  it('redacts nested personal fields', () => {
+    expect(
+      redactSensitive({
+        category: 'validation',
+        lead: { workEmail: 'person@example.test', company: 'Example Rentals' },
+      }),
+    ).toEqual({
+      category: 'validation',
+      lead: { workEmail: '[REDACTED]', company: '[REDACTED]' },
+    });
+  });
+
+  it('detects sensitive diagnostic structures', () => {
+    expect(containsSensitiveKey({ context: { message: 'private' } })).toBe(true);
+    expect(containsSensitiveKey({ category: 'timeout', correlationId: 'abc' })).toBe(false);
+  });
+});