feat: backend-supplied id cards on profile page

feat: SCIdCard thing

packages/core/test/range.spec.ts

@@ -0,0 +1,41 @@
+import {expect} from 'chai';
+import {formatRange, isInRange} from '../src/index.js';
+import {SCRange} from '../lib/index.js';
+
+const cases: Record<'accept' | 'reject', [number, SCRange<number>][]> = {
+  accept: [
+    [4, {gt: 3, lt: 5}],
+    [4, {gte: 4, lte: 4}],
+    [3, {gt: 2, lt: 4}],
+    [5, {gte: 3, lte: 5}],
+    [10, {gt: 5, lt: 15}],
+    [0, {gte: 0, lte: 10}],
+  ],
+  reject: [
+    [4, {gt: 3, lt: 4}],
+    [4, {gte: 5, lte: 6}],
+    [2, {gt: 5, lt: 10}],
+    [6, {gte: 7, lte: 8}],
+    [-1, {gt: 0, lt: 5}],
+    [20, {gte: 10, lte: 15}],
+  ],
+};
+
+describe('Range', () => {
+  for (const constructor of ['Number', 'Date'] as const) {
+    describe(`${constructor} range`, () => {
+      for (const [accept, [value, range]] of Object.entries(cases).flatMap(([accept, cases]) =>
+        cases.map(it => [accept, it] as const),
+      )) {
+        it(`should ${accept} ${value} in the range ${formatRange(range)}`, () => {
+          const result = isInRange(constructor === 'Number' ? value : new Date(value), range);
+          if (accept === 'accept') {
+            expect(result).to.be.true;
+          } else {
+            expect(result).to.be.false;
+          }
+        });
+      }
+    });
+  }
+});