Phase 1 reliability/stabilisation: auth logging, logout client, loader+xml hardening

lib/forms/readFormXml.js

@@ -2,6 +2,8 @@
 import fs from "fs";
 import path from "path";
 
+const xmlCache = new Map();
+
 /**
  * Reads /data/formsxml/{appealtypes}.xml and normalises it.
  * Returns { xmlStr } or throws on missing file.
@@ -9,6 +11,10 @@ import path from "path";
 export function readFormXml(appealtypes) {
     if (!appealtypes) throw new Error("readFormXml: appealtypes is required");
 
+    if (xmlCache.has(appealtypes)) {
+        return xmlCache.get(appealtypes);
+    }
+
     const configDirectory = path.resolve(process.cwd(), "data/formsxml");
     const filePath = path.join(configDirectory, `${appealtypes}.xml`);
 
@@ -20,5 +26,8 @@ export function readFormXml(appealtypes) {
     xmlStr = xmlStr.replace(/> <"/g, "><");
     xmlStr = xmlStr.toString();
 
-    return { xmlStr, filePath };
+    const result = { xmlStr, filePath };
+    xmlCache.set(appealtypes, result);
+
+    return result;
 }