ci: fix lint/type errors - missing electrical icons, unused vars, mypy issues

frontend/src/utils/nodeIcons.ts

@@ -25,6 +25,8 @@ import {
   Mail, MessageSquare, Phone,
   // Misc devices
   Printer, Smartphone, Laptop, Search, Filter, BookOpen, PlugZap, Type,
+  // Electrical
+  ToggleLeft,
 } from 'lucide-react'
 import type { LucideIcon } from 'lucide-react'
 
@@ -154,32 +156,46 @@ export const ICON_MAP: Record<string, LucideIcon> = Object.fromEntries(
 )
 
 export const NODE_TYPE_DEFAULT_ICONS: Record<NodeType, LucideIcon> = {
-  isp:          Globe,
-  router:       Router,
-  firewall:     Flame,
-  switch:       Network,
-  server:       Server,
-  proxmox:      Layers,
-  vm:           Box,
-  lxc:          Container,
-  nas:          HardDrive,
-  iot:          Cpu,
-  ap:           Wifi,
-  camera:       Cctv,
-  printer:      Printer,
-  computer:     Monitor,
-  laptop:       Laptop,
-  mobile:       Smartphone,
-  cpl:          PlugZap,
-  docker_host:       Anchor,
-  docker_container:  Package,
+  isp:              Globe,
+  router:           Router,
+  firewall:         Flame,
+  switch:           Network,
+  server:           Server,
+  proxmox:          Layers,
+  vm:               Box,
+  lxc:              Container,
+  nas:              HardDrive,
+  iot:              Cpu,
+  ap:               Wifi,
+  camera:           Cctv,
+  printer:          Printer,
+  computer:         Monitor,
+  laptop:           Laptop,
+  mobile:           Smartphone,
+  cpl:              PlugZap,
+  docker_host:      Anchor,
+  docker_container: Package,
   zigbee_coordinator: Radio,
   zigbee_router:      Zap,
   zigbee_enddevice:   Lightbulb,
   generic:           Circle,
-  group:        Circle,
-  groupRect:    Circle,
-  text:         Type,
+  group:             Circle,
+  groupRect:         Circle,
+  text:              Type,
+  grid:              Zap,
+  ups:               Power,
+  battery:           BatteryCharging,
+  generator:         Fan,
+  solar_panel:       Sun,
+  inverter:          Workflow,
+  circuit_breaker:   PlugZap,
+  contactor:         ToggleLeft,
+  electrical_switch: ToggleLeft,
+  socket:            Plug,
+  light:             Lightbulb,
+  meter:             Gauge,
+  transformer:       CircleDot,
+  load:              Circle,
 }
 
 /** Resolve the display icon for a node — custom_icon takes priority over type default.