feat: rebrand AgendaPro -> AgendaMax + calendar fixes + current-week demo seed

- Rebrand all user-facing text to AgendaMax
- Fix sidebar scrolling: card container no longer overflows html (flex h-full min-h-0)
- Fix calendar toolbar hover: active buttons keep readable contrast
- Sticky calendar toolbar (month/week/day always visible on scroll)
- Seed guarantees 2-4 appointments per day for current week (Mon-Sat)

src/pages/DashboardPage.tsx

@@ -24,6 +24,7 @@ import {
   Flame,
   Trophy,
   Coins,
+  Wallet,
 } from "lucide-react";
 import { api } from "../lib/api";
 import { useAuth } from "../lib/auth";
@@ -50,8 +51,8 @@ export function DashboardPage() {
   const symbol = business?.currency_symbol ?? "$";
 
   const { data: overview, isLoading: ovLoading } = useQuery({
-    queryKey: ["dashboard", "overview"],
-    queryFn: () => api.dashboard.overview(),
+    queryKey: ["dashboard", "overview", range],
+    queryFn: () => api.dashboard.overview(Number(range)),
   });
   const { data: emp } = useQuery({
     queryKey: ["dashboard", "best-employees", range],
@@ -118,13 +119,20 @@ export function DashboardPage() {
 
       <div className="flex-1 space-y-5 px-5 py-5 sm:px-7">
         {/* KPIs */}
-        <div className="grid grid-cols-1 gap-3 sm:grid-cols-2 xl:grid-cols-4">
+        <div className="grid grid-cols-1 gap-3 sm:grid-cols-2 xl:grid-cols-5">
+          <KpiCard
+            title="Ingresos de hoy"
+            value={ovLoading ? "…" : formatCurrency(overview?.revenue_today ?? 0, symbol)}
+            sub="día de hoy"
+            icon={Wallet}
+            color="#10b981"
+          />
           <KpiCard
             title="Ingresos del período"
-            value={ovLoading ? "…" : formatCurrency(overview?.revenue_month ?? 0, symbol)}
-            sub="últimos 30 días"
+            value={ovLoading ? "…" : formatCurrency(overview?.revenue_range ?? 0, symbol)}
+            sub={`últimos ${range} días`}
             delta={overview?.revenue_change_pct}
-            deltaSuffix="% vs mes anterior"
+            deltaSuffix="% vs período anterior"
             icon={DollarSign}
             color="#3b66ff"
           />
@@ -133,7 +141,7 @@ export function DashboardPage() {
             value={ovLoading ? "…" : formatNumber(overview?.appts_upcoming ?? 0)}
             sub="próximas"
             icon={CalendarCheck}
-            color="#10b981"
+            color="#6366f1"
           />
           <KpiCard
             title="Ticket promedio"
@@ -143,8 +151,8 @@ export function DashboardPage() {
             color="#a855f7"
           />
           <KpiCard
-            title="Ocupación"
-            value={ovLoading ? "…" : `${overview?.occupancy_pct ?? 0}%`}
+            title="Finalización"
+            value={ovLoading ? "…" : `${overview?.completion_pct ?? 0}%`}
             sub={`${overview?.cancel_rate ?? 0}% cancelación`}
             icon={Flame}
             color="#f17616"