feat(reports): admin Reports dashboard — ledger-first charts

Adds an admin Reports screen (/setup/reports, gated report:read) — an
on-demand dashboard over the signed event log.

Server (ledger-first): GET /api/reports/summary?from&to&bucket aggregates
in one call — entry/exit counts + all money summed straight from
ledger_events (same source the shift Z-report reconciles, so totals tie
out to the drawer); revenue split into ticket / subscription-sale /
out-of-window mirrors the Z-report. Duration stats come from the sessions
cache (flagged). All bucketing is in the SITE timezone (siteTz). A .csv
export of the per-bucket series. reports.ts + routes/reports.ts.

Web: Reports.tsx — date-range presets (today/7d/30d/90d), hour/day/month
grain, KPI cards, entry/exit line, revenue bar + cash/card split,
revenue-mix pie, peak-hours histogram, numeric breakdown, subscription
stats. Charts via Recharts (MIT), lazy-loaded into its own chunk
(~111KB gz) so the booth bundle is untouched. New Setup tab + nav + i18n
(sq + en parity). asc() exported from @parking/db; formatMinutes helper.

Tests: reports.test.ts (10) pin the sums, tz bucketing, money split,
duration stats, subscription counts. server 90/90; build+lint 14/14.

Wiki: reporting-analytics.md "Built v1" section + log entry.

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

apps/web/src/lib/i18n/sq.ts

@@ -57,6 +57,7 @@ export const sq = {
     users: "Përdoruesit",
     roles: "Rolet",
     shifts: "Turnet",
+    reports: "Raportet",
     logs: "Loget",
   },
   status: {
@@ -691,6 +692,40 @@ export const sq = {
     cashRemoved: "Para të hequra",
     loadFailed: "Ngarkimi i turneve dështoi.",
   },
+  reports: {
+    title: "Raportet",
+    groupBy: "Grupo sipas",
+    exportCsv: "Eksporto CSV",
+    loadFailed: "Raporti nuk u ngarkua dot: {{error}}",
+    noData: "Nuk ka të dhëna në këtë interval.",
+    footnote: "Numërimet dhe paratë mblidhen nga regjistri i nënshkruar. Oraret në {{tz}}.",
+    preset: { today: "Sot", "7d": "7 ditë", "30d": "30 ditë", "90d": "90 ditë" },
+    bucket: { hour: "Orë", day: "Ditë", month: "Muaj" },
+    kpi: {
+      entries: "Hyrje",
+      exits: "Dalje",
+      revenue: "Të ardhura",
+      payments: "Pagesa",
+      avgStay: "Qëndrim mes.",
+      subscribers: "Abonentë",
+    },
+    chart: {
+      flow: "Hyrjet & daljet me kalimin e kohës",
+      revenue: "Të ardhurat ({{currency}})",
+      mix: "Përbërja e të ardhurave",
+      peakHours: "Hyrjet sipas orës së ditës",
+      breakdown: "Ndarja",
+    },
+    mix: { ticket: "Tranzit", subSales: "Abonime", subWindow: "Jashtë orarit" },
+    row: {
+      cash: "Para në dorë",
+      card: "Kartë",
+      closed: "Sesione të mbyllura",
+      medianStay: "Qëndrim mesatar (median)",
+      subActive: "Abonime aktive",
+      subCars: "Makina të mbuluara",
+    },
+  },
   logs: {
     title: "Loget e sistemit",
     refresh: "Rifresko",