fix(confidence-engine): expose reconstruction validation issues

tests/reconstruction/compatibility.test.js

@@ -192,6 +192,54 @@ describe("analyseScenario compatibility", () => {
     expect(result.nextQuestion).toBeUndefined();
   });
 
+  it("preserves nested validation issues and complete raw output on reconstruction failure", async () => {
+    mockGenerateReconstruction.mockResolvedValue({
+      inputClassification: {
+        primaryType: "unexplained_change",
+        secondaryTypes: [],
+        reasoningModes: [],
+        classificationReason: "reason",
+        confidence: "medium",
+      },
+      reconstruction: {
+        summary: "summary",
+        actors: [],
+        systemsOrObjects: [],
+        expectedStates: [],
+        observedStates: [{ id: "obs-1", confidence: "high" }],
+        differences: [],
+        knownTransitions: [],
+        unexplainedTransitions: [],
+        contradictions: [],
+        importantUnknowns: [],
+        plausibleInterpretations: [],
+        padding: "x".repeat(2500),
+      },
+      evidence: [],
+      nextQuestion: {
+        id: "q1",
+        question: "What changed?",
+        targets: [],
+        reason: "reason",
+        expectedInformationValue: "high",
+      },
+    });
+
+    const { analyseScenario } = await import("@/lib/analysis.js");
+    const result = await analyseScenario("Scenario text", {
+      promptVersion: "v0.3",
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.rawResponse.length).toBeGreaterThan(2000);
+    expect(result.validationIssues).toContainEqual(expect.objectContaining({
+      path: ["reconstruction", "observedStates", 0, "description"],
+      code: "invalid_type",
+      message: "Required",
+    }));
+    expect(result.errors).toContain("reconstruction: Required");
+  });
+
   it("succeeds when reported_claim is the only evidenceType mismatch", async () => {
     mockGenerateReconstruction.mockResolvedValue({
       inputClassification: {