Migrate remaining legacy operator workflows

Web/comparison-workflow.js

@@ -171,6 +171,14 @@
     return [null, null];
   }
 
+  function krxIdentityEnvelope(value) {
+    const pair = normalizePair(value);
+    if (!pair || pair.some(target => target.kind !== "krx-stock")) return "";
+    return pair
+      .map(target => `${target.market === "kospi" ? "KOSPI" : "KOSDAQ"}:${target.stockCode}`)
+      .join("|");
+  }
+
   function normalizePair(value) {
     const [firstValue, secondValue] = pairParts(value);
     const first = normalizeTarget(firstValue);
@@ -288,6 +296,10 @@
     const builderKey = selectedAction.kind === "return" ? "s5029" : selectedAction.builderKey;
     const code = selectedAction.kind === "return" ? "5029" : selectedAction.code;
     const graphicType = selectedAction.kind === "return" ? "RETURN_COMPARISON" : selectedAction.graphicType;
+    const dataCode = krxIdentityEnvelope(pair);
+    if (!dataCode) {
+      throw new RangeError("Comparison graphs require two exact KRX stock identities.");
+    }
     return Object.freeze({
       builderKey,
       code,
@@ -297,7 +309,7 @@
         subject,
         graphicType,
         subtype: selectedAction.period,
-        dataCode: ""
+        dataCode
       }),
       effectiveMode: compatibility.effectiveMode,
       warning: compatibility.warning
@@ -482,6 +494,7 @@
     getCompatibility,
     isActionAllowed,
     buildComparisonSelection,
+    krxIdentityEnvelope,
     createComparisonPlaylistEntry,
     createYieldBatchEntries,
     restoreComparisonPlaylistEntry,