Add DeltaStore exchange v1 support

tests/core.test.mjs

@@ -36,3 +36,19 @@ test("rejects duplicate tool-call IDs", () => {
 {"type":"message","message":{"role":"assistant","toolCalls":[{"id":"same","function":{"name":"read_file","arguments":"{}"}}]}}`;
   assert.throws(() => parseTraceText(duplicate, "dup.jsonl"), /Duplicate tool call id/);
 });
+
+test("normalizes DeltaStore exchange v1 and preserves evaluator evidence", async () => {
+  const exchange = {
+    schema_version: "solstice-agent-trace-exchange/v1", trace_id: "delta-fixture", source: { type: "synthetic" }, task: { summary: "prompt injection" },
+    events: [
+      { event_id: "e1", sequence: 1, event_type: "message", actor: { type: "agent" }, input_summary: "start" },
+      { event_id: "e2", sequence: 2, event_type: "tool_call", actor: { type: "agent" }, tool_call_id: "call-1", tool_name: "inspect_fixture", input_summary: { path: "/workspace" } },
+    ],
+    checkpoints: [], branches: [], outcomes: {}, redaction: {}, provenance: {}, policy: {},
+    findings: [{ finding_id: "finding-1", category: "tool-output-injection", severity: "high", evidence_lineage: ["e2"] }],
+  };
+  const parsed = parseTraceText(JSON.stringify(exchange), "exchange.json");
+  assert.equal(parsed.format, "DeltaStore Trace Exchange v1");
+  const report = await scanSession(parsed.session);
+  assert.equal(report.findings.find((finding) => finding.id === "finding-1").evidence_event_ids[0], "e2");
+});