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/en.ts

@@ -55,6 +55,7 @@ export const en: Catalog = {
     users: "Users",
     roles: "Roles",
     shifts: "Shifts",
+    reports: "Reports",
     logs: "Logs",
   },
   status: {
@@ -677,6 +678,40 @@ export const en: Catalog = {
     cashRemoved: "Cash removed",
     loadFailed: "Failed to load shifts.",
   },
+  reports: {
+    title: "Reports",
+    groupBy: "Group by",
+    exportCsv: "Export CSV",
+    loadFailed: "Couldn't load the report: {{error}}",
+    noData: "No data in this range.",
+    footnote: "Counts and money are summed from the signed event log. Times shown in {{tz}}.",
+    preset: { today: "Today", "7d": "7 days", "30d": "30 days", "90d": "90 days" },
+    bucket: { hour: "Hour", day: "Day", month: "Month" },
+    kpi: {
+      entries: "Entries",
+      exits: "Exits",
+      revenue: "Revenue",
+      payments: "Payments",
+      avgStay: "Avg stay",
+      subscribers: "Subscribers",
+    },
+    chart: {
+      flow: "Entries & exits over time",
+      revenue: "Revenue ({{currency}})",
+      mix: "Revenue mix",
+      peakHours: "Entries by hour of day",
+      breakdown: "Breakdown",
+    },
+    mix: { ticket: "Transient", subSales: "Subscriptions", subWindow: "Out-of-window" },
+    row: {
+      cash: "Cash",
+      card: "Card",
+      closed: "Closed sessions",
+      medianStay: "Median stay",
+      subActive: "Active subscriptions",
+      subCars: "Cars covered",
+    },
+  },
   logs: {
     title: "System logs",
     refresh: "Refresh",