fix(review): require late-finding schema field

schema/clawsweeper-decision.schema.json

@@ -509,7 +509,8 @@
           "confidenceScore",
           "file",
           "lineStart",
-          "lineEnd"
+          "lineEnd",
+          "lateFinding"
         ],
         "properties": {
           "title": {
@@ -544,7 +545,7 @@
           },
           "lateFinding": {
             "type": "boolean",
-            "description": "True when this finding targets code unchanged since an earlier reviewed head where the concern was equally visible but was not raised. Omit or use false for findings introduced by new commits or newly available evidence."
+            "description": "True when this finding targets code unchanged since an earlier reviewed head where the concern was equally visible but was not raised. Use false for findings introduced by new commits or newly available evidence."
           }
         }
       }

test/review-prompt-policy.test.ts

@@ -303,6 +303,13 @@ test("decision schema keeps draft and protected workflow state out of PR rank",
   );
 });
 
+test("review finding schema requires every structured-output property", () => {
+  const schema = JSON.parse(readFileSync("schema/clawsweeper-decision.schema.json", "utf8"));
+  const finding = schema.properties.reviewFindings.items;
+
+  assert.deepEqual([...finding.required].sort(), Object.keys(finding.properties).sort());
+});
+
 test("review prompt and schema describe positive-only feature showcase labels", () => {
   const prompt = readFileSync("prompts/review-item.md", "utf8");
   const schema = JSON.parse(readFileSync("schema/clawsweeper-decision.schema.json", "utf8"));