fix(coding-teacher): restore context and read project files

electron/coding-projects/project-files.ts

@@ -207,6 +207,24 @@ export class CodingProjectFileService {
     private readonly git: ConversationGitAdapter = new ProcessConversationGitAdapter(),
   ) {}
 
+  async directory(projectPath: string, requestedPath = '.'): Promise<Array<{
+    path: string; name: string; type: 'file' | 'directory';
+  }>> {
+    const relativePath = requestedPath === '.' ? '' : normalizeRelativePath(requestedPath);
+    const target = relativePath
+      ? await containedExistingTarget(projectPath, relativePath)
+      : await realpath(projectPath);
+    const entries = await readdir(target, { withFileTypes: true });
+    return entries
+      .filter(entry => (entry.isFile() || entry.isDirectory()) && !SKIPPED_DIRECTORIES.has(entry.name))
+      .sort((left, right) => Number(right.isDirectory()) - Number(left.isDirectory()) || left.name.localeCompare(right.name))
+      .map(entry => ({
+        path: relativePath ? relativePath + '/' + entry.name : entry.name,
+        name: entry.name,
+        type: entry.isDirectory() ? 'directory' as const : 'file' as const,
+      }));
+  }
+
   async status(projectPath: string): Promise<CodingProjectFileEntry[]> {
     const result = await this.gitResult(projectPath, [
       'status',