fix(installer): uninstall now selects latest install record instead of latest pointer

scripts/install-whispergate-openclaw.mjs

@@ -77,6 +77,25 @@ function readRecord(file) {
   return JSON.parse(fs.readFileSync(file, "utf8"));
 }
 
+function findLatestInstallRecord() {
+  if (!fs.existsSync(STATE_DIR)) return "";
+  const files = fs
+    .readdirSync(STATE_DIR)
+    .filter((f) => /^whispergate-\d+\.json$/.test(f))
+    .sort()
+    .reverse();
+  for (const f of files) {
+    const p = path.join(STATE_DIR, f);
+    try {
+      const rec = readRecord(p);
+      if (rec?.mode === "install") return p;
+    } catch {
+      // ignore broken records
+    }
+  }
+  return "";
+}
+
 if (!fs.existsSync(OPENCLAW_CONFIG_PATH)) {
   console.error(`[whispergate] config not found: ${OPENCLAW_CONFIG_PATH}`);
   process.exit(1);
@@ -153,9 +172,9 @@ if (mode === "install") {
     process.exit(1);
   }
 } else {
-  const recFile = env.RECORD_FILE || (fs.existsSync(LATEST_RECORD_LINK) ? LATEST_RECORD_LINK : "");
+  const recFile = env.RECORD_FILE || findLatestInstallRecord();
   if (!recFile || !fs.existsSync(recFile)) {
-    console.error("[whispergate] no record found. set RECORD_FILE=<path> or install first.");
+    console.error("[whispergate] no install record found. set RECORD_FILE=<path> to an install record.");
     process.exit(1);
   }