fix: LINE webhook verification 200; fix tsgo error (#16582) (thanks @arosstale)

src/line/monitor.ts

@@ -323,14 +323,14 @@ export async function monitorLineProvider(
         const signature = req.headers["x-line-signature"];
 
         // LINE webhook verification sends POST {"events":[]} without a
-        // signature header.  Return 200 so the LINE Developers Console
+        // signature header. Return 200 so the LINE Developers Console
         // "Verify" button succeeds.
         if (!signature || typeof signature !== "string") {
           try {
             const verifyBody = JSON.parse(rawBody) as WebhookRequestBody;
             if (Array.isArray(verifyBody.events) && verifyBody.events.length === 0) {
               logVerbose(
-                "line: webhook verification request (empty events, no signature) — 200 OK",
+                "line: webhook verification request (empty events, no signature) - 200 OK",
               );
               res.statusCode = 200;
               res.setHeader("Content-Type", "application/json");

src/line/webhook.ts

@@ -48,7 +48,7 @@ export function createLineWebhookMiddleware(
         if (rawBody) {
           const body = parseWebhookBody(req, rawBody);
           if (body && Array.isArray(body.events) && body.events.length === 0) {
-            logVerbose("line: webhook verification request (empty events, no signature) — 200 OK");
+            logVerbose("line: webhook verification request (empty events, no signature) - 200 OK");
             res.status(200).json({ status: "ok" });
             return;
           }

src/memory/qmd-scope.ts

@@ -74,7 +74,10 @@ function parseQmdSessionScope(key?: string): ParsedQmdSessionScope {
   return { normalizedKey: normalized, chatType: "direct" };
 }
 
-function normalizeQmdSessionKey(key: string): string | undefined {
+function normalizeQmdSessionKey(key?: string): string | undefined {
+  if (!key) {
+    return undefined;
+  }
   const trimmed = key.trim();
   if (!trimmed) {
     return undefined;