The modular refactor changed function signatures to destructured deps but
left internal ctx.* references intact, causing "ctx is not defined" errors
on /api/config, /api/logo, and many other endpoints. Also implements
loadTotpConfig and saveTotpConfig which were left as stubs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Full codebase including API server (32 modules + routes), dashboard frontend,
DashCA certificate distribution, installer script, and deployment skills.