fix: align report technique audit evidence

frontend/tests/personal-report-generation.test.ts

@@ -452,6 +452,40 @@ test("assembled document passes the canonical server parse with a D1 of 12 house
   );
 });
 
+test("technique audit reflects final evidence status and narrative usage", () => {
+  const workflow = pythonStyleChartPayload() as Record<string, unknown>;
+  const machinePacket = workflow.machine_evidence_packet as Record<string, unknown>;
+  const sections = machinePacket.sections as Record<string, Record<string, unknown>>;
+  sections.external_oracle_status.status = "official_blocked";
+  const packet = buildPacket({ workflow });
+  assert.deepEqual(packet.blockedTechniques, []);
+  const output = agentOutput();
+  const blockedRef = packet.evidenceRefs.find((ref) => ref.technique === "D2");
+  assert.ok(blockedRef);
+  output.thematicNarrative[0].evidenceRefs.push(blockedRef.id);
+  const document = assembleReportDocument({
+    reportId: "22222222-2222-4222-8222-222222222222",
+    generatedAt: "2026-08-06T00:00:00.000Z",
+    packet,
+    agentOutput: output,
+  });
+  const auditById = new Map(document.evidenceAppendix.techniqueAudit.map((row) => [row.id, row]));
+  const referencedIds = new Set(document.thematicNarrative.flatMap((section) => section.evidenceRefs));
+
+  assert.ok([...referencedIds].every((id) => auditById.get(id)?.used === true));
+  assert.equal(document.evidenceAppendix.techniqueAudit.find((row) => row.techniqueName === "D1")?.status, "verified");
+  assert.equal(document.evidenceAppendix.techniqueAudit.find((row) => row.techniqueName === "D2")?.status, "blocked");
+  assert.match(
+    document.evidenceAppendix.techniqueAudit.find((row) => row.techniqueName === "D2")?.notes ?? "",
+    /未返回本次计算数据/,
+  );
+  const external = document.evidenceAppendix.techniqueAudit.find(
+    (row) => row.techniqueName === "external_oracle_status",
+  );
+  assert.equal(external?.status, "blocked");
+  assert.match(external?.notes ?? "", /官方外部引擎本次未验证或不可用/);
+});
+
 test("D9/D10 charts are omitted when no real divisional houses exist", () => {
   const workflow = pythonStyleChartPayload() as Record<string, unknown>;
   const chart = workflow.chart as Record<string, unknown>;