Measure refresh latency independently and retain intended result selection

apps/desktop/tests/selection-state.test.mjs

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+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { ResultSelection } from '../src/selection-state.ts';
+
+test('restores intended result after temporary absence across empty and fallback responses', () => {
+  const selection = new ResultSelection();
+  selection.begin('supplier/all');
+  assert.equal(selection.resolve(['supplier', 'retry']), 0);
+  assert.equal(selection.resolve(['retry']), 0);
+  assert.equal(selection.resolve([]), -1);
+  assert.equal(selection.resolve(['retry', 'supplier']), 1);
+});
+
+test('explicit user navigation supersedes the hidden result even when choosing the fallback', () => {
+  const selection = new ResultSelection();
+  selection.begin('supplier/all');
+  selection.resolve(['supplier', 'retry']);
+  selection.resolve(['retry']);
+  selection.choose('retry');
+  assert.equal(selection.resolve(['supplier', 'retry']), 1);
+});
+
+test('changed query or filters reset intent, while same-scope retries retain it', () => {
+  const selection = new ResultSelection();
+  selection.begin('supplier/all');
+  selection.resolve(['supplier', 'retry']);
+  selection.choose('retry');
+  selection.begin('supplier/all');
+  assert.equal(selection.resolve(['supplier', 'retry']), 1);
+  selection.begin('supplier/code');
+  assert.equal(selection.resolve(['code', 'retry']), 0);
+  selection.begin('garden/code');
+  assert.equal(selection.resolve(['garden', 'code']), 0);
+  selection.begin('');
+  selection.begin('garden/code');
+  assert.equal(selection.resolve(['code', 'garden']), 0);
+});
+
+test('initially empty search establishes its first choice only when results arrive', () => {
+  const selection = new ResultSelection();
+  selection.begin('new/all');
+  assert.equal(selection.resolve([]), -1);
+  assert.equal(selection.resolve(['new', 'other']), 0);
+  assert.equal(selection.resolve(['other', 'new']), 1);
+});