Redesign dashboard zone card with live temps, AC status, and per-radiator state

Adds actual room-temperature capture for TRVs over MQTT and a background
Modbus poller for AC mode/fan/lock/room-temp, so the dashboard tile can show
real setpoint-vs-actual readings, an AC status block, and up to 3 radiator
icons per zone instead of just the setpoint.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend/src/components/ZoneCard.tsx

@@ -1,25 +1,99 @@
-import { Thermometer, BatteryLow } from 'lucide-react'
+import { Thermometer, BatteryLow, TriangleAlert, Snowflake, Flame, Fan, Droplet, Lock, Heater } from 'lucide-react'
 import type { ZoneStatus } from '../types'
-import { ROOM_STATE_LABELS } from '../types'
+import { ROOM_STATE_LABELS, MHI_FAN_SPEEDS } from '../types'
+
+const AC_DEVICE_TYPES = ['mhi_modbus', 'midea', 'daikin', 'home_assistant']
+
+const MODE_ICONS: Record<string, typeof Snowflake> = {
+  cool: Snowflake,
+  heat: Flame,
+  fan: Fan,
+  dry: Droplet,
+  auto: Fan,
+}
+
+// bed -> living/lounge -> bathroom, matching the order in the sketch; anything else last.
+function locationRank(location: string | null) {
+  const l = (location || '').toLowerCase()
+  if (l.includes('bed')) return 0
+  if (l.includes('living') || l.includes('lounge')) return 1
+  if (l.includes('bath')) return 2
+  return 3
+}
+
+function fmtTemp(t: string | number | null | undefined) {
+  return t != null ? `${Number(t).toFixed(1)}°C` : '—'
+}
 
 export default function ZoneCard({ zone, onClick }: { zone: ZoneStatus; onClick: () => void }) {
   const unhealthy = zone.devices.filter(d => d.health_state !== 'healthy').length
+  const worstHealth = zone.devices.some(d => d.health_state === 'unresponsive' || d.health_state === 'poor')
   const lowBattery = zone.devices.some(d => d.battery_pct != null && d.battery_pct < 30)
 
+  const trvs = zone.devices
+    .filter(d => d.device_type === 'shelly_trv')
+    .sort((a, b) => locationRank(a.location) - locationRank(b.location))
+  const trvReadings = trvs.map(d => d.current_room_temp).filter((t): t is string => t != null).map(Number)
+  const avgRoomTemp = trvReadings.length ? trvReadings.reduce((a, b) => a + b, 0) / trvReadings.length : null
+
+  const ac = zone.devices.find(d => AC_DEVICE_TYPES.includes(d.device_type))
+  const acOn = ac?.power_state === 'on'
+  const ModeIcon = MODE_ICONS[ac?.current_mode || ''] || Fan
+  const fanLevel = ac ? (MHI_FAN_SPEEDS as readonly string[]).indexOf(ac.fan_speed || '') + 1 : 0
+
   return (
     <div className={`card zone-card st-${zone.room_state}`} onClick={onClick}>
       <div className="zone-card-title">
-        <span>{zone.name}</span>
+        <span>
+          {zone.name}
+          {unhealthy > 0 && (
+            <TriangleAlert
+              size={14}
+              strokeWidth={1.75}
+              color={worstHealth ? 'var(--health-unresponsive)' : 'var(--health-degraded)'}
+              style={{ verticalAlign: '-2px', marginLeft: 6 }}
+            />
+          )}
+        </span>
         {!zone.auto_mode && <span className="badge badge-outline">Manual</span>}
       </div>
       <div className={`badge badge-st-${zone.room_state}`}>{ROOM_STATE_LABELS[zone.room_state]}</div>
-      <div className="zone-card-temp">
-        <Thermometer size={16} strokeWidth={1.75} style={{ verticalAlign: '-2px', marginRight: 4 }} />
-        {Number(zone.target_temp).toFixed(1)}°C
+
+      <div className="zone-card-body">
+        <div className="zone-card-main">
+          <div className="zone-card-temp">
+            <Thermometer size={16} strokeWidth={1.75} style={{ verticalAlign: '-2px', marginRight: 4 }} />
+            {Number(zone.target_temp).toFixed(1)}°C / {fmtTemp(avgRoomTemp)}
+          </div>
+
+          {trvs.length > 0 && (
+            <div className="rad-row">
+              {trvs.slice(0, 3).map(d => (
+                <div key={d.id} className={`rad-icon ${d.heating_active ? 'heating' : 'idle'}`}>
+                  <Heater size={16} strokeWidth={1.75} />
+                  <span>{fmtTemp(d.current_target_temp)}/{fmtTemp(d.current_room_temp)}</span>
+                </div>
+              ))}
+            </div>
+          )}
+        </div>
+
+        {ac && (
+          <div className={`ac-block${acOn ? '' : ' off'}`}>
+            {ac.remote_locked && <Lock size={12} strokeWidth={1.75} className="ac-lock" />}
+            <div className="ac-mode-row">
+              <ModeIcon size={20} strokeWidth={1.75} />
+              <div className="fan-bar">
+                {[1, 2, 3, 4].map(n => <span key={n} className={n <= fanLevel ? 'on' : ''} />)}
+              </div>
+            </div>
+            <div className="ac-temp">{fmtTemp(ac.current_target_temp)} / {fmtTemp(ac.current_room_temp)}</div>
+          </div>
+        )}
       </div>
+
       <div className="zone-card-meta">
         <span>{zone.device_count ?? zone.devices.length} device{(zone.device_count ?? zone.devices.length) === 1 ? '' : 's'}</span>
-        {unhealthy > 0 && <span style={{ color: 'var(--health-degraded)' }}>{unhealthy} needs attention</span>}
         {lowBattery && <BatteryLow size={13} strokeWidth={1.75} color="var(--health-degraded)" />}
       </div>
     </div>

frontend/src/index.css

@@ -205,7 +205,7 @@ html, body, #root { height: 100%; margin: 0; font-size: 14px; }
 }
 
 /* ── Zone grid / cards ─────────────────────────────────────── */
-.zone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
+.zone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
 .zone-card {
   cursor: pointer;
   transition: box-shadow .12s, transform .12s;
@@ -218,9 +218,32 @@ html, body, #root { height: 100%; margin: 0; font-size: 14px; }
 .zone-card.st-occupied     { border-left-color: var(--st-occupied); }
 .zone-card.st-cooling_down { border-left-color: var(--st-cooling-down); }
 .zone-card-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; display: flex; align-items: center; gap: 6px; justify-content: space-between; }
-.zone-card-temp { font-size: 22px; font-weight: 700; margin: 6px 0 2px; }
+.zone-card-temp { font-size: 20px; font-weight: 700; margin: 6px 0 2px; }
 .zone-card-meta { font-size: 12px; color: var(--text-mid); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
 
+/* ── Zone card body: setpoint/radiators on the left, AC block on the right ─ */
+.zone-card-body { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-top: 4px; }
+.zone-card-main { flex: 1; min-width: 0; }
+
+.rad-row { display: flex; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
+.rad-icon { display: flex; align-items: center; gap: 3px; font-size: 10.5px; font-weight: 600; color: var(--text-mid); }
+.rad-icon.heating { color: var(--st-occupied); }
+.rad-icon.idle     { color: var(--st-cooling-down); }
+
+.ac-block { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; padding-top: 4px; color: var(--text-dark); }
+.ac-block.off { color: var(--text-mid); opacity: .55; }
+.ac-lock { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); color: var(--health-degraded); }
+.ac-mode-row { display: flex; align-items: center; gap: 6px; }
+.ac-temp { font-size: 10.5px; font-weight: 600; color: var(--text-mid); }
+
+.fan-bar { display: flex; align-items: flex-end; gap: 2px; height: 16px; }
+.fan-bar span { width: 3px; background: var(--card-border); border-radius: 1px; }
+.fan-bar span:nth-child(1) { height: 25%; }
+.fan-bar span:nth-child(2) { height: 50%; }
+.fan-bar span:nth-child(3) { height: 75%; }
+.fan-bar span:nth-child(4) { height: 100%; }
+.fan-bar span.on { background: var(--app-primary); }
+
 /* ── Badges ────────────────────────────────────────────────── */
 .badge {
   display: inline-flex;

frontend/src/types.ts

@@ -64,6 +64,15 @@ export interface DeviceSummary {
   current_target_temp: string | null
   target_origin: string | null
   last_seen: string | null
+  // Dashboard live-status cache — shelly_trv populates current_room_temp/heating_active
+  // via MQTT (mqtt.js); mhi_modbus populates the rest via the AC poller (ac-poller.js).
+  current_room_temp: string | null
+  heating_active: boolean | null
+  power_state: 'on' | 'off' | null
+  current_mode: string | null
+  fan_speed: string | null
+  remote_locked: boolean | null
+  status_updated_at: string | null
 }
 
 export interface Device extends DeviceSummary {