fix: add /api/logs route (fix gitignore that was blocking it)

- Fix .gitignore: logs/ -> /logs/ to only ignore root logs dir
- Add app/api/logs/route.ts (was being ignored by gitignore)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -49,8 +49,8 @@ pgdata/
 migration-report-*.json
 *.sql
 
-# Logs
-logs/
+# Logs (only root logs directory, not app/api/logs)
+/logs/
 *.log
 
 # OS files