Repair multimodal vision parsing and rerun fallback history

server/vision.test.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from "vitest";
+import { extractStructuredJsonContent, normalizeMultimodalCorrectionReport } from "./vision";
+
+describe("extractStructuredJsonContent", () => {
+  it("parses JSON wrapped in markdown code fences", () => {
+    const parsed = extractStructuredJsonContent("```json\n{\"summary\":\"ok\",\"drills\":[]}\n```");
+    expect(parsed).toMatchObject({ summary: "ok", drills: [] });
+  });
+
+  it("parses text content arrays returned by chat completions", () => {
+    const parsed = extractStructuredJsonContent([
+      { type: "text", text: "{\"summary\":\"ok\",\"drills\":[]}" },
+    ]);
+    expect(parsed).toMatchObject({ summary: "ok", drills: [] });
+  });
+});
+
+describe("normalizeMultimodalCorrectionReport", () => {
+  it("fills missing drill arrays so markdown rendering does not crash", () => {
+    const report = normalizeMultimodalCorrectionReport({
+      summary: "反手动作可继续优化",
+      overallScore: 81,
+      confidence: 76,
+      drills: [
+        {
+          name: "反手节奏重建",
+          purpose: "稳定击球点",
+          durationMinutes: 8,
+        },
+      ],
+    });
+
+    expect(report.drills[0]?.steps.length).toBeGreaterThan(0);
+    expect(report.drills[0]?.coachingCues.length).toBeGreaterThan(0);
+    expect(report.nextSessionFocus.length).toBeGreaterThan(0);
+    expect(report.recommendedCaptureTips.length).toBeGreaterThan(0);
+  });
+
+  it("maps provider-specific phaseAssessment payloads into phase findings", () => {
+    const report = normalizeMultimodalCorrectionReport({
+      phaseAssessment: {
+        preparation: "肩膀转动信息不足",
+        contact: "无法判断击球点",
+      },
+      issueTags: ["补拍侧后方连续帧"],
+      recommendedCaptureTips: "提供连续关键帧",
+    });
+
+    expect(report.phaseFindings.length).toBe(2);
+    expect(report.summary).toContain("preparation");
+    expect(report.nextSessionFocus).toContain("补拍侧后方连续帧");
+    expect(report.recommendedCaptureTips).toContain("提供连续关键帧");
+  });
+});