Replace the legacy top-level management key with a unified paths-based
model. Each domain now contains a paths map where each entry defines its
own backend, auth, headers, and flags (is_management, is_websocket).
- Add _migrate_config() to auto-migrate legacy formats on first load
- Remove set_management_proxy() and POST_NGINX_MANAGEMENT endpoint
- Update server_block.conf template to iterate paths with per-location auth
- Update daemon handler, API blueprint, state collector, and install script
- Add server config generation tests for paths, WebSocket, auth inheritance
- Update frontend proxy page to display per-path rows with flags
- Add find_cert_dir() to resolve both RSA and ECC (domain_ecc/) cert dirs
- Copy acme deploy hook to /deploy/ where acme.sh resolves it
- _parse_account_conf checks both legacy .account.conf and declarative config
- Skip public DNS check when all local IPs are private (NAT)
- Improve check message strings for validity and expiry status
- Support timezone-aware date formats in _days_until parsing
- Filter out "no" SAN domains in cert listing
- Bump frontend asset version cache keys
- Fix DOMContentLoaded race condition in app.js boot
- Fix spread operator in certs.js modal template
- Move acme.sh utilities (_run_acme, _find_acme, etc.) from lib/state to lib/acme
- Rewrite _parse_list_output to support pipe, tab, and column-separated formats
- Add ConflictError (409) to block issuing when cert already exists
- Move _find_issuance helper to detect in-progress issuance per domain
- Update issue_cert to check existing certs and return issuance status
- Fix start_polling to accept event loop explicitly
- Add sudoers entry for chown on vacuum-wall.conf
- Extend systemd ReadWritePaths for /run/nginx.pid and /var/log/nginx
- Update frontend to handle 'existing' issuance status
- lib/state.py: per-subsystem collectors with versioned state store
- daemon/server.py: state refresh on request, batch routing updates
- webui/static/hoover/html.js: new html tag template helper via htm.js
- webui/static/hoover/websocket.js: real-time state change notifications
- webui/static/hoover/vdom.js: VDOM improvements for keyed diff
- All frontend pages refactored to use html templates
- Add tests for state management and polling
- Update docs and AGENTS.md
- Register, view, and deactivate ACME accounts via API and UI
- 16-check validation framework for certificate issuance readiness
- DNS resolution, port, nginx, and firewall pre-flight checks
- External IP detection with NAT support and fallback providers
- Account card and settings modal in certificates page
- Guard certificate issuance behind account registration
- Update modal CSS to overlay-based approach
- 1000+ lines of tests for validation and account handlers
mteehan