feat: exibir tempo médio em horas e minutos

src/components/dashboard/dashboard-hero.tsx

@@ -12,7 +12,7 @@ import { api } from "@/convex/_generated/api"
 import type { Id } from "@/convex/_generated/dataModel"
 import { useAuth } from "@/lib/auth-client"
 import { DEFAULT_TENANT_ID } from "@/lib/constants"
-import { cn, formatDateDM, formatDateDMY } from "@/lib/utils"
+import { cn, formatDateDM, formatDateDMY, formatMinutesHuman } from "@/lib/utils"
 import { Badge } from "@/components/ui/badge"
 import {
   Card,
@@ -205,7 +205,7 @@ export function DashboardHero() {
               <CardTitle className="text-3xl font-semibold text-neutral-900 tabular-nums">
                 {overview?.firstResponse ? (
                   overview.firstResponse.averageMinutes !== null ? (
-                    `${overview.firstResponse.averageMinutes.toFixed(1)} min`
+                    formatMinutesHuman(overview.firstResponse.averageMinutes)
                   ) : (
                     "—"
                   )

src/lib/utils.ts

@@ -17,6 +17,20 @@ export function formatHoursCompact(value: number, locale: string = "pt-BR"): str
   return `${nf.format(hours)} h`
 }
 
+// Format minutes to h/m when reaching the 1h mark; below that keep 1 decimal minute precision.
+// Examples: 45.3 -> "45,3 min"; 60 -> "1h"; 185 -> "3h5m"
+export function formatMinutesHuman(value: number, locale: string = "pt-BR"): string {
+  const minutes = Number.isFinite(value) ? Math.max(value, 0) : 0
+  if (minutes < 60) {
+    const nf = new Intl.NumberFormat(locale, { minimumFractionDigits: 1, maximumFractionDigits: 1 })
+    return `${nf.format(minutes)} min`
+  }
+  const rounded = Math.round(minutes)
+  const hours = Math.floor(rounded / 60)
+  const remainingMinutes = rounded % 60
+  return remainingMinutes === 0 ? `${hours}h` : `${hours}h${remainingMinutes}m`
+}
+
 // Format date to dd/MM or dd/MM/yyyy. Accepts Date or ISO-like string (YYYY-MM-DD).
 export function formatDateDM(value: Date | string | number): string {
   const d = typeof value === "string" || typeof value === "number" ? new Date(value) : value