Implement Harbor gateway device ecosystem support

test/web/devices-feature-contract.test.js

@@ -41,7 +41,7 @@ test('device controller preserves Gateway-only polling, monotonic publication an
   assert.match(page, /<GatewayTrafficSummary feature=\{devicesFeature\} now=\{now\}/);
 });
 
-test('all unknown inventory results pass one identity-preserving runtime parser', () => {
+test('all unknown inventory results pass one capability-aware runtime parser', () => {
   const observedAt = '2026-08-08T12:34:56.000Z';
   const valid = {
     revision: 3,
@@ -106,7 +106,21 @@ test('all unknown inventory results pass one identity-preserving runtime parser'
     },
     extra: { retained: true },
   };
-  assert.equal(parseDeviceSnapshot(valid), valid);
+  const oldBackend = parseDeviceSnapshot(valid);
+  assert.equal(oldBackend.taggingSupported, false);
+  assert.deepEqual(oldBackend.tags, []);
+  assert.deepEqual(oldBackend.devices[0].tagIds, []);
+  assert.deepEqual(oldBackend.extra, valid.extra);
+
+  const supported = {
+    ...valid,
+    tags: [{ id: 'tag_0123456789abcdef', name: 'Умный дом' }],
+    devices: [{ ...valid.devices[0], tagIds: ['tag_0123456789abcdef'] }],
+  };
+  const parsedSupported = parseDeviceSnapshot(supported);
+  assert.equal(parsedSupported.taggingSupported, true);
+  assert.deepEqual(parsedSupported.tags, supported.tags);
+  assert.deepEqual(parsedSupported.devices[0].tagIds, ['tag_0123456789abcdef']);
   for (const invalid of [
     null,
     {},
@@ -134,6 +148,10 @@ test('all unknown inventory results pass one identity-preserving runtime parser'
     { ...valid, devices: [{ ...valid.devices[0], outboundTraffic: { observedAt, vpnBytes: '1' } }] },
     { ...valid, devices: [{ ...valid.devices[0], outboundTraffic: { ...valid.devices[0].outboundTraffic, directIpv4ObservedAt: 'not-a-date' } }] },
     { ...valid, devices: [{ ...valid.devices[0], outboundTrafficHistory: [{ observedAt, vpnBytes: '1' }] }] },
+    { ...supported, tags: [{ id: 'bad', name: 'Дом' }] },
+    { ...supported, tags: [{ ...supported.tags[0], name: ' '.repeat(2) }] },
+    { ...supported, devices: [{ ...valid.devices[0] }] },
+    { ...supported, devices: [{ ...supported.devices[0], tagIds: ['tag_ffffffffffffffff'] }] },
     { ...valid, traffic: { ...valid.traffic, totalBytes: -4 } },
     { ...valid, traffic: { ...valid.traffic, observedAt: 'not-a-date' } },
     { ...valid, source: { ...valid.source, kind: 'arp' } },