Make pageListOf function generic - remove hardcoded PPT logic and delete package-lock.json

Co-authored-by: TechQuery <19969570+TechQuery@users.noreply.github.com>

Author: Copilot

.gitignore

@@ -4,6 +4,7 @@
 /node_modules
 /.pnp
 .pnp.js
+package-lock.json
 
 # testing
 /coverage

package-lock.json

@@ -96,17 +96,8 @@ export async function* pageListOf(path: string, prefix = 'pages'): AsyncGenerato
       }
       yield article;
     } else if (node.isFile() && !isMDX) {
-      // Handle non-Markdown files - link them to GitHub raw proxy
-      let proxyPath = path;
-      
-      // Check if this is in the PPT submodule directory
-      if (path.startsWith('/article/PPT/')) {
-        // Remove /article/PPT prefix and create GitHub raw proxy link
-        const relativePath = path.replace('/article/PPT/', '');
-        proxyPath = `/proxy/raw.githubusercontent.com/FreeCodeCamp-Chengdu/Activity_PPT/main/${relativePath}`;
-      }
-      
-      const article: ArticleMeta = { name: node.name, path: proxyPath, subs: [] };
+      // Handle non-Markdown files generically
+      const article: ArticleMeta = { name: node.name, path, subs: [] };
       yield article;
     } else if (node.isDirectory()) {
       const subs = await Array.fromAsync(pageListOf(path, prefix));