test(experiment): repair relationship discovery result handling

scripts/experimental/rto-fragment-relationship-discovery.mjs

@@ -389,20 +389,12 @@ async function executeLive() {
 
   console.log(`Model response received in ${elapsedMs}ms`);
 
-  // Parse the JSON output
-  let parsedResult;
-  try {
-    const jsonMatch = raw.match(/\{[\s\S]*\}/);
-    if (jsonMatch) {
-      parsedResult = JSON.parse(jsonMatch[0]);
-    } else {
-      throw new Error("No JSON object found in response");
-    }
-  } catch (e) {
-    console.error("Failed to parse model output as JSON:", e.message);
-    console.error("Raw response:\n", raw);
+  // Provider returns a parsed JavaScript object via recoverJson().
+  // Do NOT regex-extract — the result is already structured.
+  const parsedResult = typeof raw === "object" && raw !== null ? raw : (() => {
+    console.error("Provider returned unexpected type (expected parsed object):", typeof raw);
     process.exit(1);
-  }
+  })();
 
   // Validate output contract
   const errors = validateRelationshipOutput(parsedResult);