feat(ai-analysis): 添加图表渲染和分析API客户端

apps/web/lib/analysis-chart-renderer.test.ts

@@ -0,0 +1,45 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { toEChartsOption } from './analysis-chart-renderer';
+import type { UnifiedChartSpec } from '@ftb/shared';
+
+test('toEChartsOption renders line_area with smooth line and area gradient', () => {
+  const spec: UnifiedChartSpec = {
+    kind: 'line_area',
+    title: '需求完成趋势',
+    dataset: { source: [{ label: '2026-07-01', value: 3 }], x: 'label', y: 'value' },
+    encoding: {
+      x: { field: 'label', label: '日期' },
+      y: { field: 'value', label: '完成数' },
+      value: { field: 'value', label: '完成数' },
+      color: { mode: 'single' },
+    },
+    annotations: [{ type: 'peak', label: '峰值', field: 'value', value: 3 }],
+    stylePreset: 'apple_vision_light',
+  };
+
+  const option: any = toEChartsOption(spec);
+
+  assert.equal(option.series[0].type, 'line');
+  assert.equal(option.series[0].smooth, true);
+  assert.ok(option.series[0].areaStyle);
+  assert.equal(option.xAxis.show, true);
+  assert.equal(option.yAxis.splitLine.show, false);
+});
+
+test('toEChartsOption renders horizontal_bar with rounded bars and single color', () => {
+  const option: any = toEChartsOption({
+    kind: 'horizontal_bar',
+    title: '部门负载',
+    dataset: { source: [{ label: '研发', value: 8 }], label: 'label', value: 'value' },
+    encoding: {
+      value: { field: 'value', label: '待办数' },
+      color: { mode: 'single' },
+    },
+    stylePreset: 'apple_vision_light',
+  });
+
+  assert.equal(option.series[0].type, 'bar');
+  assert.deepEqual(option.series[0].itemStyle.borderRadius, [0, 8, 8, 0]);
+  assert.equal(option.color.length, 1);
+});