feat(supported-version): add service_preferences and support for php-fpm and nginx (#255)

supported-version/src/services/preferences/tier-map.spec.ts

@@ -0,0 +1,18 @@
+import { tierFor } from './tier-map';
+
+describe('tierFor', () => {
+  it.each([
+    ['mysql', 'db'],
+    ['elasticsearch', 'search'],
+    ['opensearch', 'search'],
+    ['rabbitmq', 'queue'],
+    ['redis', 'cache'],
+    ['valkey', 'cache'],
+  ])('maps %s to %s', (name, tier) => {
+    expect(tierFor(name)).toBe(tier);
+  });
+
+  it('returns undefined for unknown names', () => {
+    expect(tierFor('foobar')).toBeUndefined();
+  });
+});