feat(AI): 增加严格估时策略

apps/web/lib/ai-estimation-policy.test.ts

@@ -0,0 +1,25 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  clampDevEstimateHours,
+  clampTestCaseEstimateHours,
+  getDefaultTestCaseEstimateHours,
+} from './ai-estimation-policy';
+
+test('clamps simple frontend interaction to AI-assisted range', () => {
+  assert.equal(clampDevEstimateHours('frontend_interaction', 5), 1);
+  assert.equal(clampDevEstimateHours('frontend_interaction', 0.1), 0.5);
+});
+
+test('keeps backend API within strict range', () => {
+  assert.equal(clampDevEstimateHours('backend_api', 0.25), 0.75);
+  assert.equal(clampDevEstimateHours('backend_api', 2), 1.5);
+});
+
+test('defaults and clamps test case estimates', () => {
+  assert.equal(getDefaultTestCaseEstimateHours('test_functional'), 0.5);
+  assert.equal(clampTestCaseEstimateHours('test_functional', 2), 0.5);
+  assert.equal(clampTestCaseEstimateHours('test_api', 0.25), 0.5);
+  assert.equal(clampTestCaseEstimateHours('test_exception', 2), 1);
+});