Fix issues and add linting

server/src/io/write-content.ts

@@ -34,7 +34,12 @@ export function writeContentFile(
     const existing = fs.readFileSync(absPath, 'utf-8');
     beforeHash = fileHash(existing);
 
-    const backupDir = path.join(REPO_ROOT, 'content', '.backups', repoRelativePath);
+    // Derive a clean backup subdirectory name from the repo-relative path.
+    // e.g. "content/sections/hero.json" → "sections/hero" (strip leading content/ and .json)
+    const stripped = repoRelativePath
+      .replace(/^content\//, '')
+      .replace(/\.json$/, '');
+    const backupDir = path.join(REPO_ROOT, 'content', '.backups', stripped);
     ensureDir(backupDir);
     const ts = new Date().toISOString().replace(/[:.]/g, '-');
     fs.copyFileSync(absPath, path.join(backupDir, `${ts}.json`));