feat(team): add team analytics dashboard

Add a team document-usage dashboard at /t/:teamUrl/analytics for team admins and managers,
behind the NEXT_PUBLIC_FEATURE_TEAM_ANALYTICS_ENABLED rollout flag (enabled by default, set to
"false" to gate it off).

Backend:
- getTeamAnalytics Kysely query over team-produced documents across all folders, with exact
  COUNT(*) (no STATS_COUNT_CAP). Each metric uses its own date axis: Sent/Draft/Pending by
  createdAt, Completed by Envelope.completedAt, Declined by the DOCUMENT_RECIPIENT_REJECTED
  audit-log timestamp.
- resolveAnalyticsPeriod turns calendar presets into half-open [start, end) ranges in the
  viewer's timezone, falling back to UTC.
- team.getAnalytics tRPC route gated to ADMIN/MANAGER.

Frontend:
- Standalone /t/:teamUrl/analytics route whose loader gates the flag and role, silently
  redirecting members to documents.
- Headline metrics and compact stat tiles, a member multiselect filter, a calendar-preset
  period selector, and an empty state.
- Role- and flag-gated nav entries in the desktop and mobile navigation.

Tests:
- Unit tests for the period resolver (timezone and preset boundaries).
- Integration/E2E tests for the query semantics (date axes, audit-log decline, all-folders
  aggregation, sender attribution), access control, filters and the empty state.

apps/remix/app/components/general/analytics-period-selector.tsx

@@ -0,0 +1,65 @@
+import { ZAnalyticsPeriodSchema } from '@documenso/trpc/server/team-router/get-team-analytics.types';
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@documenso/ui/primitives/select';
+import { msg } from '@lingui/core/macro';
+import { useLingui } from '@lingui/react';
+import { useMemo } from 'react';
+import { useLocation, useNavigate, useSearchParams } from 'react-router';
+
+const DEFAULT_PERIOD = 'month';
+
+const PERIOD_OPTIONS = [
+  { value: 'week', label: msg`This week` },
+  { value: 'month', label: msg`This month` },
+  { value: 'quarter', label: msg`This quarter` },
+  { value: 'year', label: msg`This year` },
+  { value: 'lastMonth', label: msg`Last month` },
+  { value: 'last7Days', label: msg`Last 7 days` },
+  { value: 'last30Days', label: msg`Last 30 days` },
+] as const;
+
+export const AnalyticsPeriodSelector = () => {
+  const { _ } = useLingui();
+
+  const { pathname } = useLocation();
+  const [searchParams] = useSearchParams();
+
+  const navigate = useNavigate();
+
+  const period = useMemo(() => {
+    const parsed = ZAnalyticsPeriodSchema.safeParse(searchParams?.get('period') ?? DEFAULT_PERIOD);
+
+    return parsed.success ? parsed.data : DEFAULT_PERIOD;
+  }, [searchParams]);
+
+  const onPeriodChange = (newPeriod: string) => {
+    if (!pathname) {
+      return;
+    }
+
+    const params = new URLSearchParams(searchParams?.toString());
+
+    params.set('period', newPeriod);
+
+    if (newPeriod === DEFAULT_PERIOD) {
+      params.delete('period');
+    }
+
+    void navigate(`${pathname}?${params.toString()}`, { preventScrollReset: true });
+  };
+
+  return (
+    <Select value={period} onValueChange={onPeriodChange}>
+      <SelectTrigger className="max-w-[200px] text-muted-foreground">
+        <SelectValue />
+      </SelectTrigger>
+
+      <SelectContent position="popper">
+        {PERIOD_OPTIONS.map((option) => (
+          <SelectItem key={option.value} value={option.value}>
+            {_(option.label)}
+          </SelectItem>
+        ))}
+      </SelectContent>
+    </Select>
+  );
+};