fix(google_maps): guard against NaN days in Pollen forecast

Address Cursor Bugbot: a non-numeric `days` input parsed to NaN and was
forwarded as `days=NaN` (the tool's `?? 1` only catches undefined, not NaN),
breaking the forecast call. The block now coerces invalid input to undefined,
and the tool defaults to 1 unless `days` is a finite number.

Author: waleedlatif1

apps/sim/blocks/blocks/google_maps.ts

@@ -539,7 +539,8 @@ export const GoogleMapsBlock: BlockConfig = {
 
         let days: number | undefined
         if (params.days) {
-          days = Number.parseInt(params.days, 10)
+          const parsedDays = Number.parseInt(params.days, 10)
+          days = Number.isNaN(parsedDays) ? undefined : parsedDays
         }
 
         let plantsDescription: boolean | undefined

apps/sim/tools/google_maps/pollen.ts

@@ -90,7 +90,8 @@ export const googleMapsPollenTool: ToolConfig<GoogleMapsPollenParams, GoogleMaps
       const url = new URL('https://pollen.googleapis.com/v1/forecast:lookup')
       url.searchParams.set('location.latitude', params.lat.toString())
       url.searchParams.set('location.longitude', params.lng.toString())
-      url.searchParams.set('days', (params.days ?? 1).toString())
+      const days = typeof params.days === 'number' && Number.isFinite(params.days) ? params.days : 1
+      url.searchParams.set('days', days.toString())
       if (params.languageCode) {
         url.searchParams.set('languageCode', params.languageCode.trim())
       }