fix(telemetry): review nits

- dock h2h source corrected to match_dock; badge_viewed breakdown via value
- stats filter guards unified, ref-based, double-tap safe
- emoji picker reuses handleReactionClick; comment and import tidy

src/app/routes/_authed/stats.tsx

@@ -1,7 +1,7 @@
 import { createFileRoute } from "@tanstack/react-router";
 import { playerQueries } from "@/features/players/queries";
 import PlayerStatsTable from "@/features/players/components/player-stats-table";
-import { Suspense, useState, useDeferredValue, useEffect } from "react";
+import { Suspense, useState, useDeferredValue, useEffect, useRef } from "react";
 import PlayerStatsTableSkeleton from "@/features/players/components/player-stats-table-skeleton";
 import { prefetchServerQuery } from "@/lib/tanstack-query/utils/prefetch";
 import LeagueHeadToHead from "@/features/players/components/league-head-to-head";
@@ -9,6 +9,7 @@ import { Box, Loader, Tabs, Button, Group, Container, Stack } from "@mantine/cor
 import { useQueryClient } from "@tanstack/react-query";
 import { Trans } from "@lingui/react/macro";
 import { msg } from "@lingui/core/macro";
+import { track } from "@/lib/telemetry/client";
 
 export const Route = createFileRoute("/_authed/stats")({
   component: Stats,
@@ -32,6 +33,14 @@ function Stats() {
   const isStale = viewType !== deferredViewType;
   const queryClient = useQueryClient();
 
+  const viewTypeRef = useRef(viewType);
+  const changeViewType = (next: typeof viewType) => {
+    if (viewTypeRef.current === next) return;
+    viewTypeRef.current = next;
+    track("stats_filtered", { value: next });
+    setViewType(next);
+  };
+
   useEffect(() => {
     const timeout = window.setTimeout(() => {
       prefetchServerQuery(queryClient, playerQueries.allStats('mainline'));
@@ -54,21 +63,21 @@ function Stats() {
               <Button
                 variant={viewType === 'all' ? 'filled' : 'light'}
                 size="compact-xs"
-                onClick={() => setViewType('all')}
+                onClick={() => changeViewType('all')}
               >
                 <Trans>All</Trans>
               </Button>
               <Button
                 variant={viewType === 'mainline' ? 'filled' : 'light'}
                 size="compact-xs"
-                onClick={() => setViewType('mainline')}
+                onClick={() => changeViewType('mainline')}
               >
                 <Trans>Mainline</Trans>
               </Button>
               <Button
                 variant={viewType === 'regional' ? 'filled' : 'light'}
                 size="compact-xs"
-                onClick={() => setViewType('regional')}
+                onClick={() => changeViewType('regional')}
               >
                 <Trans>Regional</Trans>
               </Button>

src/app/routes/api/events.$.ts

@@ -39,9 +39,10 @@ export const Route = createFileRoute("/api/events/$")({
               serverEvents.on(type, handleEvent);
             }
 
+            // Under the shortest idle timeout observed on proxies/PWA paths.
             const pingInterval = setInterval(() => {
               send({ type: "ping", timestamp: Date.now() });
-            }, 15000);
+            }, 8000);
 
             cleanup = () => {
               if (cleanedUp) return;

src/components/countdown.tsx

@@ -53,12 +53,14 @@ export function Countdown({ date, label, color }: CountdownProps) {
   return (
     <Group gap="xs">
       {label && <Text size='sm' fw={500}>{label}:</Text>}
+      {/* Server and client render different seconds; the first client tick corrects it. */}
       <Text
         size='sm'
         fw={600}
         c={isFinalStretch ? 'red' : color}
         ff="monospace"
         className={classes.time}
+        suppressHydrationWarning
       >
         {prefix}
         <span
@@ -66,6 +68,7 @@ export function Countdown({ date, label, color }: CountdownProps) {
           className={`${classes.seconds} ${
             isFinalStretch ? classes.finalTick : classes.tick
           }`}
+          suppressHydrationWarning
         >
           {pad(timeLeft.seconds)}
         </span>

src/features/badges/components/badge-stats-table.tsx

@@ -19,6 +19,7 @@ import PlayerList from '@/features/players/components/player-list';
 import { useAuth } from '@/contexts/auth-context';
 import { Player } from '@/features/players/types';
 import { Trans, useLingui } from '@lingui/react/macro';
+import { track } from '@/lib/telemetry/client';
 
 const BadgeStatsTable = () => {
   const { data: allBadges } = useAllBadges();
@@ -141,7 +142,13 @@ const BadgeStatRow: React.FC<BadgeStatRowProps> = ({
 
   return (
     <Box key={badge.id}>
-      <UnstyledButton onClick={badgeSheet.open} w='100%'>
+      <UnstyledButton
+        onClick={() => {
+          track("badge_viewed", { value: badge.key });
+          badgeSheet.open();
+        }}
+        w='100%'
+      >
         <Grid p={'xs'} align='center'>
           <Grid.Col span={2} style={{ display: 'flex', alignItems: 'center' }}>
             <BadgeIcon badge={badge} filled={true} />

src/features/bracket/components/match-card.tsx

@@ -399,7 +399,7 @@ export const MatchCard: React.FC<MatchCardProps> = ({
         </Sheet>
       </Flex>
 
-      {!showControls && <MatchReport match={match} compact />}
+      {!showControls && <MatchReport match={match} compact source="match_card" />}
     </Stack>
   );
 };

src/features/bracket/components/match-dock.tsx

@@ -24,6 +24,7 @@ import { MatchReport } from "./match-report";
 import Sheet from "@/components/sheet/sheet";
 import { useSheet } from "@/hooks/use-sheet";
 import { Trans, useLingui } from "@lingui/react/macro";
+import { track } from "@/lib/telemetry/client";
 
 const EASE: [number, number, number, number] = [0.32, 0.72, 0, 1];
 
@@ -155,7 +156,7 @@ const MatchDock = ({ match, onClose }: MatchDockProps) => {
                   ended={ended}
                 />
 
-                <MatchReport match={match} />
+                <MatchReport match={match} source="match_dock" />
 
                 <Group justify="space-between" wrap="nowrap" gap="sm">
                   <Box style={{ flex: 1, minWidth: 0 }}>
@@ -166,7 +167,7 @@ const MatchDock = ({ match, onClose }: MatchDockProps) => {
                         </Center>
                       }
                     >
-                      <EmojiBar matchId={match.id} />
+                      <EmojiBar matchId={match.id} source="match_dock" />
                     </Suspense>
                   </Box>
                   {!hasPrivate && (
@@ -174,7 +175,10 @@ const MatchDock = ({ match, onClose }: MatchDockProps) => {
                       <ActionIcon
                         variant="subtle"
                         size="sm"
-                        onClick={h2hSheet.open}
+                        onClick={() => {
+                          track("h2h_viewed", { source: "match_dock" });
+                          h2hSheet.open();
+                        }}
                         aria-label={t`View head-to-head`}
                         w={40}
                         style={{ flexShrink: 0 }}

src/features/bracket/components/match-report.tsx

@@ -13,6 +13,7 @@ import Sheet from "@/components/sheet/sheet";
 import { MatchForm } from "./match-form";
 import toast from "@/lib/sonner";
 import { Trans, useLingui } from "@lingui/react/macro";
+import { track } from "@/lib/telemetry/client";
 
 const teamId = (t: Match["home"]): string | undefined =>
   !t ? undefined : typeof t === "string" ? t : t.id;
@@ -26,9 +27,10 @@ const teamName = (t: Match["home"]): string | undefined =>
 interface MatchReportProps {
   match: Match;
   compact?: boolean;
+  source?: string;
 }
 
-export const MatchReport: React.FC<MatchReportProps> = ({ match, compact }) => {
+export const MatchReport: React.FC<MatchReportProps> = ({ match, compact, source }) => {
   const { user } = useAuth();
   const formSheet = useSheet();
   const { t } = useLingui();
@@ -129,8 +131,9 @@ export const MatchReport: React.FC<MatchReportProps> = ({ match, compact }) => {
 
   const openForm = useCallback(() => {
     setAcknowledgedReport(pendingSignature);
+    track("score_report_opened", source ? { source } : undefined);
     formSheet.open();
-  }, [pendingSignature, formSheet.open]);
+  }, [pendingSignature, formSheet.open, source]);
 
   const dismissTakeover = useCallback(() => {
     setAcknowledgedReport(pendingSignature);

src/features/matches/components/match-card.tsx

@@ -10,6 +10,7 @@ import Sheet from "@/components/sheet/sheet";
 import TeamHeadToHeadSheet from "./team-head-to-head-sheet";
 import AnimatedScore from "./animated-score";
 import { Trans, useLingui } from "@lingui/react/macro";
+import { track } from "@/lib/telemetry/client";
 
 interface MatchCardProps {
   match: Match;
@@ -41,6 +42,7 @@ const MatchCard = ({ match, hideH2H = false }: MatchCardProps) => {
 
   const handleH2HClick = (e: React.MouseEvent) => {
     e.stopPropagation();
+    track("h2h_viewed", { source: "match_card" });
     h2hSheet.open();
   };
 
@@ -218,7 +220,7 @@ const MatchCard = ({ match, hideH2H = false }: MatchCardProps) => {
           }}
         >
           <Suspense>
-            <EmojiBar matchId={match.id} />
+            <EmojiBar matchId={match.id} source="match_card" />
           </Suspense>
         </Paper>
       </Box>

src/features/players/components/league-head-to-head.tsx

@@ -1,5 +1,5 @@
 import { Stack, Text, TextInput, Box, Paper, Group, Divider, ActionIcon, Button } from "@mantine/core";
-import { useState, useMemo } from "react";
+import { useState, useMemo, useRef } from "react";
 import { MagnifyingGlassIcon, XIcon, ArrowRightIcon, PlusIcon } from "@phosphor-icons/react";
 import { Trans, useLingui } from "@lingui/react/macro";
 import { useAllPlayerStats } from "../queries";
@@ -8,6 +8,7 @@ import { useSheet } from "@/hooks/use-sheet";
 import Sheet from "@/components/sheet/sheet";
 import PlayerHeadToHeadSheet from "./player-head-to-head-sheet";
 import PlayerAvatar from "@/components/player-avatar";
+import { track } from "@/lib/telemetry/client";
 
 const LeagueHeadToHead = () => {
   const { t } = useLingui();
@@ -15,6 +16,7 @@ const LeagueHeadToHead = () => {
   const [player1Id, setPlayer1Id] = useState<string | null>(null);
   const [player2Id, setPlayer2Id] = useState<string | null>(null);
   const [search, setSearch] = useState("");
+  const searchedRef = useRef(false);
   const { data: allPlayerStats } = useAllPlayerStats();
   const h2hSheet = useSheet();
 
@@ -51,6 +53,7 @@ const LeagueHeadToHead = () => {
       setPlayer1Id(playerId);
     } else {
       setPlayer2Id(playerId);
+      track("h2h_viewed", { source: "stats" });
       h2hSheet.open();
     }
   };
@@ -128,7 +131,14 @@ const LeagueHeadToHead = () => {
         <TextInput
           placeholder={t`Search players`}
           value={search}
-          onChange={(e) => setSearch(e.currentTarget.value)}
+          onChange={(e) => {
+            const value = e.currentTarget.value;
+            if (value && !searchedRef.current) {
+              searchedRef.current = true;
+              track("player_searched");
+            }
+            setSearch(value);
+          }}
           leftSection={<MagnifyingGlassIcon size={16} />}
           size="md"
           px="md"

src/features/players/components/player-stats-table.tsx

@@ -28,6 +28,7 @@ import { useNavigate } from "@tanstack/react-router";
 import { useAllPlayerStats } from "../queries";
 import { PlayerListItemSkeleton } from "./player-stats-table-skeleton";
 import { Trans, useLingui } from "@lingui/react/macro";
+import { track } from "@/lib/telemetry/client";
 
 type SortKey = keyof PlayerStats | "mmr";
 type SortDirection = "asc" | "desc";
@@ -177,6 +178,7 @@ const PlayerStatsTable = ({ viewType = 'all' }: PlayerStatsTableProps) => {
   const navigate = useNavigate();
   const [search, setSearch] = useState("");
   const deferredSearch = useDeferredValue(search);
+  const searchedRef = useRef(false);
   const [sortConfig, setSortConfig] = useState<SortConfig>({
     key: "mmr" as SortKey,
     direction: "desc",
@@ -291,6 +293,7 @@ const PlayerStatsTable = ({ viewType = 'all' }: PlayerStatsTableProps) => {
   }, [navigate]);
 
   const handleSort = (key: SortKey) => {
+    track("stats_sorted", { value: key });
     setSortConfig((prev) => ({
       key,
       direction: prev.key === key && prev.direction === "desc" ? "asc" : "desc",
@@ -328,7 +331,14 @@ const PlayerStatsTable = ({ viewType = 'all' }: PlayerStatsTableProps) => {
         <TextInput
           placeholder={t`Search players`}
           value={search}
-          onChange={(e) => setSearch(e.currentTarget.value)}
+          onChange={(e) => {
+            const value = e.currentTarget.value;
+            if (value && !searchedRef.current) {
+              searchedRef.current = true;
+              track("player_searched");
+            }
+            setSearch(value);
+          }}
           leftSection={<MagnifyingGlassIcon size={16} />}
           size="md"
           px="md"

src/features/players/components/profile/header.tsx

@@ -9,6 +9,7 @@ import PlayerAvatar from "@/components/player-avatar";
 import { useSheet } from "@/hooks/use-sheet";
 import { Player } from "../../types";
 import PlayerHeadToHeadSheet from "../player-head-to-head-sheet";
+import { track } from "@/lib/telemetry/client";
 
 interface HeaderProps {
   player: Player;
@@ -53,7 +54,10 @@ const Header = ({ player }: HeaderProps) => {
               variant="subtle"
               size="sm"
               radius="xl"
-              onClick={h2hSheet.open}
+              onClick={() => {
+                track("h2h_viewed", { source: "profile" });
+                h2hSheet.open();
+              }}
               w={40}
               display={!owner ? 'block' : 'none'}
             >

src/features/players/components/profile/index.tsx

@@ -1,5 +1,5 @@
 import { Box, Stack, Text, Divider, Group, Button } from "@mantine/core";
-import { Suspense, useState, useDeferredValue } from "react";
+import { Suspense, useState, useDeferredValue, useRef } from "react";
 import { Trans, useLingui } from "@lingui/react/macro";
 import { Link } from "@tanstack/react-router";
 import Header from "./header";
@@ -10,6 +10,7 @@ import StatsOverview, { StatsSkeleton } from "@/components/stats-overview";
 import MatchList from "@/features/matches/components/match-list";
 import BadgeShowcase from "@/features/badges/components/badge-showcase";
 import BadgeShowcaseSkeleton from "@/features/badges/components/badge-showcase-skeleton";
+import { track } from "@/lib/telemetry/client";
 
 interface ProfileProps {
   id: string;
@@ -20,14 +21,22 @@ const StatsWithFilter = ({ id }: { id: string }) => {
   const deferredViewType = useDeferredValue(viewType);
   const isStale = viewType !== deferredViewType;
 
+  const viewTypeRef = useRef(viewType);
+  const changeViewType = (next: typeof viewType) => {
+    if (viewTypeRef.current === next) return;
+    viewTypeRef.current = next;
+    track("stats_filtered", { value: next, source: "profile" });
+    setViewType(next);
+  };
+
   return (
     <Stack>
       <Group gap="xs" px="md" justify="space-between" align="center">
         <Text size="md" fw={700}><Trans>Statistics</Trans></Text>
         <Group gap="xs">
-          <Button variant={viewType === 'all' ? 'filled' : 'light'} size="compact-xs" onClick={() => setViewType('all')}><Trans>All</Trans></Button>
-          <Button variant={viewType === 'mainline' ? 'filled' : 'light'} size="compact-xs" onClick={() => setViewType('mainline')}><Trans>Mainline</Trans></Button>
-          <Button variant={viewType === 'regional' ? 'filled' : 'light'} size="compact-xs" onClick={() => setViewType('regional')}><Trans>Regional</Trans></Button>
+          <Button variant={viewType === 'all' ? 'filled' : 'light'} size="compact-xs" onClick={() => changeViewType('all')}><Trans>All</Trans></Button>
+          <Button variant={viewType === 'mainline' ? 'filled' : 'light'} size="compact-xs" onClick={() => changeViewType('mainline')}><Trans>Mainline</Trans></Button>
+          <Button variant={viewType === 'regional' ? 'filled' : 'light'} size="compact-xs" onClick={() => changeViewType('regional')}><Trans>Regional</Trans></Button>
         </Group>
       </Group>
       <Box style={{ opacity: isStale ? 0.6 : 1, transition: 'opacity 150ms' }}>
@@ -90,7 +99,12 @@ const Profile = ({ id }: ProfileProps) => {
     <>
       <Header player={player} />
       <Box mt="lg">
-        <SwipeableTabs tabs={tabs} />
+        <SwipeableTabs
+          tabs={tabs}
+          onTabChange={(_, tab) => {
+            if (tab.value === "matches") track("match_history_viewed", { source: "profile" });
+          }}
+        />
       </Box>
     </>
   );

src/features/predictions/components/prediction-editor.tsx

@@ -26,6 +26,7 @@ import {
 import { PredictionBracket } from "./prediction-bracket";
 import { MatchupSheet } from "./matchup-sheet";
 import { WinnerSelector } from "./winner-selector";
+import { track } from "@/lib/telemetry/client";
 
 interface PredictionEditorProps {
   tournament: Tournament;
@@ -215,7 +216,12 @@ export const PredictionEditor: React.FC<PredictionEditorProps> = ({
                   variant="default"
                   size="lg"
                   radius="md"
-                  onClick={matchupSheet.open}
+                  onClick={() => {
+                    if (activeResolved?.home && activeResolved?.away) {
+                      track("h2h_viewed", { source: "predictions" });
+                    }
+                    matchupSheet.open();
+                  }}
                   disabled={!activeResolved?.home && !activeResolved?.away}
                   aria-label={t`Matchup details`}
                 >

src/features/reactions/components/emoji-bar.tsx

@@ -17,11 +17,13 @@ import EmojiPicker from "./emoji-picker";
 import { useMatchReactions, useToggleMatchReaction } from "../queries";
 import { useAuth } from "@/contexts/auth-context";
 import { Reaction } from "@/features/matches/server";
+import { track } from "@/lib/telemetry/client";
 import classes from "./emoji-bar.module.css";
 
 interface EmojiBarProps {
   matchId: string;
   onReactionPress?: (emoji: string) => void;
+  source?: string;
 }
 
 const EASE: [number, number, number, number] = [0.32, 0.72, 0, 1];
@@ -56,6 +58,7 @@ const TickingCount = ({ value, ...textProps }: TickingCountProps) => {
 const EmojiBar = ({
   matchId,
   onReactionPress,
+  source,
 }: EmojiBarProps) => {
   const { user } = useAuth();
   const { t } = useLingui();
@@ -85,6 +88,7 @@ const EmojiBar = ({
     if (onReactionPress) {
       onReactionPress(emoji);
     } else {
+      if (!userReactions.includes(emoji)) track("reaction_sent", { emoji, source });
       toggleReaction.mutate({ data: { matchId, emoji } });
     }
   };
@@ -198,7 +202,7 @@ const EmojiBar = ({
           </AnimatePresence>
         </Group>
         <EmojiPicker
-          onSelect={onReactionPress || ((emoji) => toggleReaction.mutate({ data: { matchId, emoji } }))}
+          onSelect={handleReactionClick}
           userReactions={userReactions}
         />
       </Group>

src/features/telemetry/components/sessions/session-timeline.tsx

@@ -77,6 +77,12 @@ export const SessionTimelineView = ({ sessionId }: { sessionId: string }) => {
                 style={{ minWidth: 0, flex: 1 }}
               >
                 {entry.label}
+                {entry.detail && entry.kind !== "error" && (
+                  <Text component="span" size="sm" c="dimmed">
+                    {" "}
+                    · {entry.detail}
+                  </Text>
+                )}
               </Text>
               {entry.kind === "server_fn" && entry.success === false && (
                 <Text size="xs" c="red" style={{ flexShrink: 0 }}>

src/features/telemetry/components/usage-screen.tsx

@@ -9,8 +9,10 @@ import {
   Text,
   Title,
 } from "@mantine/core";
+import { DatePickerInput } from "@mantine/dates";
 import { ListSkeleton, StatTileSkeleton } from "@/components/skeletons";
 import { useRollupRange } from "../queries";
+import type { RollupRow } from "../types";
 import { fillDailySeries, lastNDays, latestValue, listDays, sumByDim } from "../range";
 import { BarList, Sparkline, StatTile } from "./charts";
 import { DetailSheet } from "./shared";
@@ -25,6 +27,8 @@ export const USAGE_METRICS = [
   "server_fn.count",
   "client_error.count",
   "vital.p75",
+  "event.count",
+  "event.detail.count",
 ];
 
 const TOP_LIST_SIZE = 8;
@@ -122,10 +126,37 @@ const FnDurationDetail = ({ fn, from, to }: { fn: string; from: string; to: stri
   );
 };
 
+const EventBreakdown = ({ name, rows }: { name: string; rows: RollupRow[] }) => {
+  const items = useMemo(() => {
+    const totals = new Map<string, number>();
+    const prefix = `${name}|`;
+    for (const row of rows) {
+      if (row.metric !== "event.detail.count" || !row.dim.startsWith(prefix)) continue;
+      const detail = row.dim.slice(prefix.length);
+      totals.set(detail, (totals.get(detail) ?? 0) + row.value);
+    }
+    return [...totals.entries()]
+      .sort((a, b) => b[1] - a[1])
+      .map(([label, value]) => ({ label, value }));
+  }, [name, rows]);
+
+  if (items.length === 0) {
+    return (
+      <Text size="sm" c="dimmed">
+        <Trans>No breakdown recorded</Trans>
+      </Text>
+    );
+  }
+
+  return <BarList items={items} />;
+};
+
 const UsageSections = ({ from, to }: { from: string; to: string }) => {
   const { t, i18n } = useLingui();
   const [selectedFn, setSelectedFn] = useState<string | null>(null);
   const { isOpen: fnDetailOpened, open: openFnDetail, close: closeFnDetail } = useSheet();
+  const [selectedEvent, setSelectedEvent] = useState<string | null>(null);
+  const { isOpen: eventDetailOpened, open: openEventDetail, close: closeEventDetail } = useSheet();
 
   const { data: rows } = useRollupRange({ metrics: USAGE_METRICS, from, to });
 
@@ -142,6 +173,10 @@ const UsageSections = ({ from, to }: { from: string; to: string }) => {
     setSelectedFn(dim);
     openFnDetail();
   });
+  const eventItems = topItems(sumByDim(rows, "event.count"), (dim) => {
+    setSelectedEvent(dim);
+    openEventDetail();
+  });
 
   const vitals = (["LCP", "INP", "CLS"] as VitalName[]).map((name) => ({
     name,
@@ -186,6 +221,26 @@ const UsageSections = ({ from, to }: { from: string; to: string }) => {
 
       <Divider />
 
+      <Stack gap="sm">
+        <Title order={4}>
+          <Trans>Events</Trans>
+        </Title>
+        {eventItems.length > 0 ? (
+          <Stack gap="xs">
+            <Text size="xs" c="dimmed">
+              <Trans>Top interactions, tap for breakdown</Trans>
+            </Text>
+            <BarList items={eventItems} />
+          </Stack>
+        ) : (
+          <Text size="sm" c="dimmed">
+            <Trans>No events recorded in this range</Trans>
+          </Text>
+        )}
+      </Stack>
+
+      <Divider />
+
       <Stack gap="sm">
         <Title order={4}>
           <Trans>Server functions</Trans>
@@ -230,6 +285,25 @@ const UsageSections = ({ from, to }: { from: string; to: string }) => {
         </SimpleGrid>
       </Stack>
 
+      <DetailSheet
+        title={selectedEvent ?? t`Event`}
+        opened={eventDetailOpened}
+        onClose={() => {
+          setSelectedEvent(null);
+          closeEventDetail();
+        }}
+        fields={
+          selectedEvent
+            ? [
+                {
+                  label: <Trans>Breakdown</Trans>,
+                  value: <EventBreakdown name={selectedEvent} rows={rows} />,
+                },
+              ]
+            : []
+        }
+      />
+
       <DetailSheet
         title={selectedFn ?? t`Function`}
         opened={fnDetailOpened}
@@ -251,36 +325,61 @@ const UsageSections = ({ from, to }: { from: string; to: string }) => {
 
 export const UsageScreen = () => {
   const { t } = useLingui();
-  const [rangeDays, setRangeDays] = useState<"7" | "30">("7");
-  const range = useMemo(() => lastNDays(Number(rangeDays)), [rangeDays]);
+  const [preset, setPreset] = useState<"7" | "30" | "180" | "custom">("7");
+  const [customRange, setCustomRange] = useState<[string | null, string | null]>([null, null]);
+
+  const range = useMemo(() => {
+    if (preset !== "custom") return lastNDays(Number(preset));
+    const [start, end] = customRange;
+    if (!start || !end) return null;
+    return { from: start, to: end };
+  }, [preset, customRange]);
 
   return (
     <Stack gap="md" px="md" pb="md">
       <SegmentedControl
-        value={rangeDays}
-        onChange={(value) => setRangeDays(value as "7" | "30")}
+        value={preset}
+        onChange={(value) => setPreset(value as typeof preset)}
         data={[
           { value: "7", label: t`7d` },
           { value: "30", label: t`30d` },
+          { value: "180", label: t`180d` },
+          { value: "custom", label: t`Custom` },
         ]}
         fullWidth
       />
 
-      <Suspense
-        fallback={
-          <Stack gap="lg">
-            <StatTileSkeleton align="row" />
-            <SimpleGrid cols={3} spacing="sm">
-              <StatTileSkeleton />
-              <StatTileSkeleton />
-              <StatTileSkeleton />
-            </SimpleGrid>
-            <ListSkeleton rows={6} withTrailing="text" />
-          </Stack>
-        }
-      >
-        <UsageSections from={range.from} to={range.to} />
-      </Suspense>
+      {preset === "custom" && (
+        <DatePickerInput
+          type="range"
+          value={customRange}
+          onChange={setCustomRange}
+          maxDate={new Date()}
+          placeholder={t`Pick a date range`}
+        />
+      )}
+
+      {range ? (
+        <Suspense
+          fallback={
+            <Stack gap="lg">
+              <StatTileSkeleton align="row" />
+              <SimpleGrid cols={3} spacing="sm">
+                <StatTileSkeleton />
+                <StatTileSkeleton />
+                <StatTileSkeleton />
+              </SimpleGrid>
+              <ListSkeleton rows={6} withTrailing="text" />
+            </Stack>
+          }
+        >
+          <UsageSections from={range.from} to={range.to} />
+        </Suspense>
+      ) : (
+        <Text size="sm" c="dimmed" ta="center" py="xl">
+          <Trans>Pick a date range to see usage</Trans>
+        </Text>
+      )}
     </Stack>
   );
 };

src/features/telemetry/server.ts

@@ -134,7 +134,7 @@ export const resolveClientErrorGroup = createServerFn({ method: "POST" })
   );
 
 const rollupRangeSchema = z.object({
-  metrics: z.array(z.string()).min(1).max(8),
+  metrics: z.array(z.string()).min(1).max(12),
   from: z.string().regex(/^\d{4}-\d{2}-\d{2}$/),
   to: z.string().regex(/^\d{4}-\d{2}-\d{2}$/),
   dim: z.string().optional(),
@@ -302,11 +302,17 @@ export const getSessionTimeline = createServerFn()
 
       for (const event of events.items) {
         if (event.name.startsWith("vital.")) continue;
+        const props = event.props as
+          | { emoji?: string; source?: string; tournament?: string; value?: string }
+          | null
+          | undefined;
+        const breakdown =
+          props?.emoji ?? props?.value ?? props?.source ?? props?.tournament;
         entries.push({
           ts: event.created,
           kind: event.name === "page_view" ? "page_view" : "event",
           label: event.name === "page_view" ? event.path || event.route_id || "?" : event.name,
-          detail: event.name === "page_view" ? undefined : event.path,
+          detail: event.name === "page_view" ? undefined : (breakdown ?? event.path),
         });
       }
 
@@ -346,7 +352,43 @@ export const getSessionTimeline = createServerFn()
 
       entries.sort((a, b) => (a.ts < b.ts ? -1 : 1));
 
-      const players = await playerInfoById(new Set(playerId ? [playerId] : []));
+      const profileIds = new Set<string>();
+      const teamIds = new Set<string>();
+      for (const entry of entries) {
+        if (entry.kind !== "page_view") continue;
+        const profileMatch = entry.label.match(/^\/profile\/([^/]+)$/);
+        if (profileMatch) profileIds.add(profileMatch[1]);
+        const teamMatch = entry.label.match(/^\/teams\/([^/]+)$/);
+        if (teamMatch) teamIds.add(teamMatch[1]);
+      }
+
+      const players = await playerInfoById(
+        new Set([...(playerId ? [playerId] : []), ...profileIds])
+      );
+
+      const teamNames = new Map<string, string>();
+      if (teamIds.size > 0) {
+        try {
+          const teams = await pbAdmin.listTeamInfos();
+          for (const team of teams) {
+            if (teamIds.has(team.id)) teamNames.set(team.id, team.name);
+          }
+        } catch {}
+      }
+
+      for (const entry of entries) {
+        if (entry.kind !== "page_view" || entry.detail) continue;
+        const profileMatch = entry.label.match(/^\/profile\/([^/]+)$/);
+        if (profileMatch) {
+          const player = players.get(profileMatch[1]);
+          if (player) {
+            entry.detail = [player.first_name, player.last_name].filter(Boolean).join(" ");
+          }
+          continue;
+        }
+        const teamMatch = entry.label.match(/^\/teams\/([^/]+)$/);
+        if (teamMatch) entry.detail = teamNames.get(teamMatch[1]);
+      }
 
       return {
         session: {

src/features/tournaments/components/profile/index.tsx

@@ -1,4 +1,4 @@
-import { useMemo } from "react";
+import { useEffect, useMemo, useRef } from "react";
 import { Box } from "@mantine/core";
 import Header from "./header";
 import TeamList from "@/features/teams/components/team-list";
@@ -7,6 +7,7 @@ import { useTournament } from "../../queries";
 import MatchList from "@/features/matches/components/match-list";
 import { TournamentStats } from "../tournament-stats";
 import { useLingui } from "@lingui/react/macro";
+import { track } from "@/lib/telemetry/client";
 
 interface ProfileProps {
   id: string;
@@ -15,6 +16,14 @@ interface ProfileProps {
 const Profile = ({ id }: ProfileProps) => {
   const { t } = useLingui();
   const { data: tournament } = useTournament(id);
+  const trackedId = useRef<string | null>(null);
+
+  useEffect(() => {
+    if (!tournament || trackedId.current === tournament.id) return;
+    trackedId.current = tournament.id;
+    track("tournament_viewed", { tournament: tournament.name });
+  }, [tournament]);
+
   if (!tournament) return null;
 
   const tabs = useMemo(() => [

src/features/tournaments/components/started-tournament/sections/nav-grid.tsx

@@ -24,6 +24,7 @@ import { useSheet } from "@/hooks/use-sheet";
 import TeamList from "@/features/teams/components/team-list";
 import WizardOrbIcon from "@/components/wizard-orb-icon";
 import { Tournament } from "../../../types";
+import { track } from "@/lib/telemetry/client";
 import classes from "./nav-grid.module.css";
 
 const RulesContent = lazy(
@@ -86,9 +87,10 @@ const NavGrid = ({
         <NavTile
           label={t`Bracket`}
           Icon={TreeStructureIcon}
-          onClick={() =>
-            navigate({ to: `/tournaments/${tournament.id}/bracket` })
-          }
+          onClick={() => {
+            track("bracket_viewed", { source: "nav_grid" });
+            navigate({ to: `/tournaments/${tournament.id}/bracket` });
+          }}
         />
         {isPredictable && !predictionsLocked && (
           <NavTile
@@ -118,9 +120,19 @@ const NavGrid = ({
               : t`Teams`
           }
           Icon={UsersIcon}
-          onClick={teamsSheet.open}
+          onClick={() => {
+            track("teams_viewed", { source: "nav_grid" });
+            teamsSheet.open();
+          }}
+        />
+        <NavTile
+          label={t`Rules`}
+          Icon={ListIcon}
+          onClick={() => {
+            track("rules_viewed", { source: "nav_grid" });
+            rulesSheet.open();
+          }}
         />
-        <NavTile label={t`Rules`} Icon={ListIcon} onClick={rulesSheet.open} />
       </SimpleGrid>
 
       <Sheet title={t`Enrolled Teams`} {...teamsSheet.props}>

src/features/tournaments/components/started-tournament/sections/recent-results.tsx

@@ -4,6 +4,7 @@ import { useNavigate } from "@tanstack/react-router";
 import { Trans, useLingui } from "@lingui/react/macro";
 import MatchCard from "@/features/matches/components/match-card";
 import { Match } from "@/features/matches/types";
+import { track } from "@/lib/telemetry/client";
 import SectionHeading from "./section-heading";
 
 interface RecentResultsProps {
@@ -39,9 +40,10 @@ const RecentResults = ({ matches, tournamentId, max = 5 }: RecentResultsProps) =
               type="button"
               size="xs"
               fw={600}
-              onClick={() =>
-                navigate({ to: `/tournaments/${tournamentId}/bracket` })
-              }
+              onClick={() => {
+                track("bracket_viewed", { source: "recent_results" });
+                navigate({ to: `/tournaments/${tournamentId}/bracket` });
+              }}
             >
               <Group gap={2} align="center" wrap="nowrap">
                 <Trans>View all results</Trans>

src/features/tournaments/components/started-tournament/sections/score-report-cta.tsx

@@ -77,7 +77,7 @@ const ScoreReportCta = ({ matches }: ScoreReportCtaProps) => {
                   )}
                 </Group>
               </Group>
-              <MatchReport match={match} />
+              <MatchReport match={match} source="score_cta" />
             </Stack>
           </Paper>
         ))}

src/features/tournaments/components/upcoming-tournament/enrolled-players-list-button.tsx

@@ -9,6 +9,7 @@ import { Text } from "@mantine/core";
 import PlayerList from "@/features/players/components/player-list";
 import { Player } from "@/features/players/types";
 import { NavTile } from "../started-tournament/sections/nav-grid";
+import { track } from "@/lib/telemetry/client";
 
 interface EnrolledPlayersListButtonProps {
   tournamentId: string;
@@ -33,7 +34,10 @@ const EnrolledPlayersListButton: React.FC<EnrolledPlayersListButtonProps> = ({ t
           values: { count },
         })}
         Icon={UserListIcon}
-        onClick={open}
+        onClick={() => {
+          track("players_viewed", { source: "upcoming" });
+          open();
+        }}
       />
 
       <Sheet title={t`Enrolled Players`} opened={isOpen} onChange={toggle}>

src/features/tournaments/components/upcoming-tournament/rules-list-button.tsx

@@ -6,6 +6,7 @@ import { useTournament } from "../../queries"
 import { Button, Flex, Loader, Stack } from "@mantine/core"
 import { lazy, Suspense } from "react"
 import { NavTile } from "../started-tournament/sections/nav-grid"
+import { track } from "@/lib/telemetry/client"
 
 const RulesContent = lazy(() => import("./rules-content"));
 
@@ -20,7 +21,14 @@ const RulesListButton: React.FC<RulesListButtonProps> = ({ tournamentId }) => {
 
   return (
     <>
-      <NavTile label={t`Rules`} Icon={ListIcon} onClick={open} />
+      <NavTile
+        label={t`Rules`}
+        Icon={ListIcon}
+        onClick={() => {
+          track("rules_viewed", { source: "upcoming" });
+          open();
+        }}
+      />
 
       <Sheet title={t`Tournament Rules`} opened={isOpen} onChange={toggle}>
         <Stack gap="xs">

src/features/tournaments/components/upcoming-tournament/team-list-button.tsx

@@ -7,6 +7,7 @@ import { useMemo } from "react"
 import { useLingui } from "@lingui/react/macro"
 import { msg } from "@lingui/core/macro"
 import { NavTile } from "../started-tournament/sections/nav-grid"
+import { track } from "@/lib/telemetry/client"
 
 interface TeamListButtonProps {
   teams: TeamInfo[]
@@ -25,7 +26,10 @@ const TeamListButton: React.FC<TeamListButtonProps> = ({ teams, isRegional }) =>
           values: { count },
         })}
         Icon={UsersIcon}
-        onClick={open}
+        onClick={() => {
+          track("teams_viewed", { source: "upcoming" });
+          open();
+        }}
       />
 
       <Sheet title={t`Enrolled Teams`} opened={isOpen} onChange={toggle}>

src/hooks/use-server-events.ts

@@ -20,6 +20,8 @@ const INVALIDATE_JITTER_MS = 1500;
 const invalidateTimers = new Map<string, ReturnType<typeof setTimeout>>();
 
 const WATCHDOG_MS = 45_000;
+const REFRESH_ATTEMPT_COOLDOWN_MS = 60_000;
+let lastRefreshAttemptAt = 0;
 
 function debouncedInvalidate(
   queryClient: ReturnType<typeof useQueryClient>,
@@ -164,11 +166,14 @@ export function useServerEvents() {
         // session is genuinely gone, stop retrying so we don't hammer the
         // endpoint forever — a real re-login (or a wake event) will reconnect.
         let sessionValid = true;
-        try {
-          const { attemptRefreshingSession } = await import('supertokens-web-js/recipe/session');
-          sessionValid = await attemptRefreshingSession();
-        } catch {
-          // Refresh call itself failed (likely offline) — treat as transient.
+        if (Date.now() - lastRefreshAttemptAt > REFRESH_ATTEMPT_COOLDOWN_MS) {
+          lastRefreshAttemptAt = Date.now();
+          try {
+            const { attemptRefreshingSession } = await import('supertokens-web-js/recipe/session');
+            sessionValid = await attemptRefreshingSession();
+          } catch {
+            // Refresh call itself failed (likely offline) — treat as transient.
+          }
         }
 
         if (disposed) return;

src/lib/telemetry/client/index.ts

@@ -17,19 +17,37 @@ const recentErrors = new Map<string, number>();
 
 const isEnabled = (): boolean => typeof window !== "undefined";
 
-const getSessionId = (): string => {
+// A session ends after 30 idle minutes, not when the tab closes — installed
+// PWAs keep sessionStorage alive for days.
+const SESSION_IDLE_MS = 30 * 60 * 1000;
+const SESSION_KEY = "flxn-tsid";
+
+const readSession = (): { id: string; t: number } | null => {
   try {
-    let id = sessionStorage.getItem("flxn-tsid");
-    if (!id) {
-      id = crypto.randomUUID();
-      sessionStorage.setItem("flxn-tsid", id);
+    const raw = sessionStorage.getItem(SESSION_KEY);
+    if (!raw) return null;
+    const parsed = JSON.parse(raw);
+    if (typeof parsed?.id === "string" && typeof parsed?.t === "number") {
+      return parsed;
     }
-    return id;
+    return null;
   } catch {
-    return "anon-session";
+    return null;
   }
 };
 
+const touchSession = () => {
+  try {
+    const now = Date.now();
+    const current = readSession();
+    const id =
+      current && now - current.t <= SESSION_IDLE_MS ? current.id : crypto.randomUUID();
+    sessionStorage.setItem(SESSION_KEY, JSON.stringify({ id, t: now }));
+  } catch {}
+};
+
+const getSessionId = (): string => readSession()?.id ?? "anon-session";
+
 const location = (): { path: string; routeId?: string } => ({
   path: window.location.pathname,
   routeId: lastRouteId,
@@ -64,6 +82,7 @@ const flush = (useBeacon = false) => {
 
 const enqueue = (event: QueuedEvent) => {
   if (!isEnabled()) return;
+  touchSession();
   queue.push(event);
   if (queue.length >= FLUSH_AT) {
     flush();

src/lib/telemetry/rollup-core.ts

@@ -14,6 +14,7 @@ export interface ClientEventRow {
   session_id?: string;
   route_id?: string;
   value?: number;
+  props?: { source?: string; emoji?: string; tournament?: string; value?: string } | null;
 }
 
 export interface ClientErrorRow {
@@ -64,6 +65,8 @@ export interface ClientEventAccumulator {
   sessions: Set<string>;
   pageViewsByRoute: Map<string, number>;
   vitals: Map<string, number[]>;
+  eventCounts: Map<string, number>;
+  eventDetails: Map<string, number>;
 }
 
 export const newClientEventAccumulator = (): ClientEventAccumulator => ({
@@ -71,8 +74,15 @@ export const newClientEventAccumulator = (): ClientEventAccumulator => ({
   sessions: new Set(),
   pageViewsByRoute: new Map(),
   vitals: new Map(),
+  eventCounts: new Map(),
+  eventDetails: new Map(),
 });
 
+// emoji first: reaction_sent carries both emoji and source, and its aggregate
+// breakdown should be by emoji.
+const eventDetail = (row: ClientEventRow): string | undefined =>
+  row.props?.emoji ?? row.props?.value ?? row.props?.source ?? row.props?.tournament;
+
 export const accumulateClientEvents = (acc: ClientEventAccumulator, rows: ClientEventRow[]) => {
   for (const row of rows) {
     if (row.player) acc.players.add(row.player);
@@ -86,6 +96,13 @@ export const accumulateClientEvents = (acc: ClientEventAccumulator, rows: Client
       const values = acc.vitals.get(metric) ?? [];
       values.push(row.value);
       acc.vitals.set(metric, values);
+    } else {
+      acc.eventCounts.set(row.name, (acc.eventCounts.get(row.name) ?? 0) + 1);
+      const detail = eventDetail(row);
+      if (detail) {
+        const key = `${row.name}|${detail}`;
+        acc.eventDetails.set(key, (acc.eventDetails.get(key) ?? 0) + 1);
+      }
     }
   }
 };
@@ -157,6 +174,13 @@ export const buildDayRollups = (
   push("page_view.count", "", totalPageViews);
   push("page_view.sessions", "", clientEvents.sessions.size);
 
+  for (const [name, count] of clientEvents.eventCounts) {
+    push("event.count", name, count);
+  }
+  for (const [key, count] of clientEvents.eventDetails) {
+    push("event.detail.count", key, count);
+  }
+
   push("client_error.count", "", clientErrors.total);
   for (const [group, count] of clientErrors.byGroup) {
     push("client_error.count", group, count);

src/lib/telemetry/rollup.server.ts

@@ -59,7 +59,7 @@ export const runRollups = async (
   );
   await pbAdmin.pageCollection<ClientEventRow>(
     "client_events",
-    { filter: dayFilter(dateStr), fields: "name,player,session_id,route_id,value,created" },
+    { filter: dayFilter(dateStr), fields: "name,player,session_id,route_id,value,props,created" },
     (rows) => accumulateClientEvents(clientEvents, rows)
   );
   await pbAdmin.pageCollection<ClientErrorRow>(