Refactor sensor ID usage and types, add CO2 metrics, update docs

- Standardize on `sensor.sensor_id` throughout components and stores -
Add average and max CO2 metrics to sensor store and HomeView - Improve
type safety for sensors, actions, and API calls - Update AGENTS.md with
repository guidelines - Refine settings store types and utility
functions - Add WindowWithAuth interface for auth store access - Minor
bug fixes and code cleanup

src/composables/useApi.ts

@@ -3,12 +3,15 @@
  * Provides reactive API state management
  */
 import { ref, reactive } from 'vue'
-import { 
-  sensorsApi, 
-  roomsApi, 
-  analyticsApi, 
+import {
+  sensorsApi,
+  roomsApi,
+  analyticsApi,
   healthApi,
-  type SensorInfo,
+  type SensorDevice,
+  type SensorType,
+  type SensorStatus,
+  type SensorMetadata,
   type RoomInfo,
   type RoomData,
   type AnalyticsSummary,
@@ -69,23 +72,23 @@ export function useSensorsApi() {
     error: null
   })
 
-  const sensors = ref<SensorInfo[]>([])
-  const currentSensor = ref<SensorInfo | null>(null)
+  const sensors = ref<SensorDevice[]>([])
+  const currentSensor = ref<SensorDevice | null>(null)
   const sensorData = ref<DataResponse | null>(null)
 
   const { handleApiCall } = useApi()
 
   const fetchSensors = async (params?: {
     room?: string
-    sensor_type?: any
-    status?: any
+    sensor_type?: SensorType
+    status?: SensorStatus
   }) => {
     const result = await handleApiCall(
       () => sensorsApi.getSensors(params),
       state
     )
-    if (result) {
-      sensors.value = result
+    if (result && result.sensors) {
+      sensors.value = result.sensors
     }
     return result
   }
@@ -129,7 +132,7 @@ export function useSensorsApi() {
 
   const updateSensorMetadata = async (
     sensorId: string,
-    metadata: Record<string, any>
+    metadata: SensorMetadata
   ) => {
     return handleApiCall(
       () => sensorsApi.updateSensorMetadata(sensorId, metadata),