Add docstrings to all handler functions in daemon/handlers/firewall.py, covering
params, return values, and raised exceptions. Add inline comments to
_config_apply() reconciliation steps and the request body merge order.
Add docstrings across lib/ modules for emit helpers (_emit_str, _emit_int, etc.),
volatile stripping logic, two-layer diff strategy, sync event dispatch, and all
cross-subsystem sync subscribers (DnsToFirewall, WgToFirewall, FirewallToDhcp,
NetworkToAllSync).
Document WireGuard/networkd config parsers and key-value mappers in
system_import.py. Add docstrings to _ep(), Registry.decorator,
setup_logging, and _replace helper across daemon/ and lib/.
- wireguard: POST /peers with JSON encoding (was /add-peer)
- rules: delete by rule_id in URL path (was JSON body); pass rule objects with id from server; add hx-disable to initial render
- nat: port forward delete uses URL path params to match blueprint
- nat: masquerade toggle uses native hx-post/hx-vals (was inline fetch)
- app.js renderers updated to use URL path deletes for rules and forwards
- remove TODO.md
mteehan