fix: update page retrieval and existence check to use $eq operator for consistency

apps/app/src/server/routes/apiv3/attachment.js

@@ -356,7 +356,7 @@ module.exports = (crowi) => {
       }
 
       try {
-        const page = await Page.findById(pageId);
+        const page = await Page.findOne({ _id: { $eq: pageId } });
 
         // check the user is accessible
         const isAccessible = await Page.isAccessiblePageByViewer(page.id, req.user);

apps/app/src/server/routes/apiv3/page/update-page.ts

@@ -145,7 +145,7 @@ export const updatePageHandlersFactory: UpdatePageHandlersFactory = (crowi) => {
       const sanitizeRevisionId = revisionId == null ? undefined : generalXssFilter.process(revisionId);
 
       // check page existence
-      const isExist = await Page.count({ _id: pageId }) > 0;
+      const isExist = await Page.count({ _id: { $eq: pageId } }) > 0;
       if (!isExist) {
         return res.apiv3Err(new ErrorV3(`Page('${pageId}' is not found or forbidden`, 'notfound_or_forbidden'), 400);
       }