fix(web): the charts stop lying about time, and logging out logs you out

The stats charts drew every sample as an evenly-spaced slot, because recharts
defaults to a category axis. A capture that idled for two minutes rendered that
gap as a single step — so the one view you open specifically to find where the
time went was the view least able to show it. All three charts use a numeric time
axis now, so the spacing is the elapsed time.

They also joined samples across a session boundary into one continuous line,
implying a continuity that never existed: the stream stopped and somebody else
started a new one. A capture is split at each `session_id` change now. And the
live card plotted the whole capture-so-far every 2 s, re-serialising and
re-plotting an unbounded series for a capture left running all evening; it plots
a bounded tail and says so, with the full series still in the saved recording.

Logging out only deleted the browser's copy of the cookie. The session is
stateless, so a value captured beforehand — a shared machine, a shell history, a
TLS-inspecting proxy — stayed valid for its full 7-day TTL and there was nothing
the operator could do about it. Sessions carry an epoch now and logging out bumps
it, which invalidates every cookie issued so far. Verified end to end: a captured
cookie works, survives nothing across a logout, and a fresh login still works.

The rest:

- The update card could not show its own timeout warning. It was suppressed by a
  `job` field read from the last snapshot — which, when the host has gone away
  mid-job, is exactly the case the warning exists for. Nothing ever cleared the
  applying state either, so the card waited forever with no way out; there is a
  button now. "Check now" also surfaces the host's 429 instead of looking dead.
- A running install survives a reload: the job id lived only in component state,
  so refreshing lost sight of an install that was still running while the Install
  buttons stayed armed against a host that answers 409. The host keeps the list —
  ask it.
- An all-sources-failed catalog said "no plugins available". That is a successful
  request carrying nothing, not an empty store; it names the sources that failed.
- The Installed tab rendered "vundefined" for a plugin with no recorded version
  (nullable in the contract, typed required here).
- The Displays "In effect" badges were computed from the local draft, so they
  restated the operator's unsaved edits back to them as though the host had
  adopted them. They read the API's `effective` now. A failed background poll no
  longer replaces a form someone is editing, and leaving the page with unsaved
  edits prompts — the old `beforeunload` guard never fired for in-app navigation,
  which is how you actually leave.
- Enter or Space on a preset's rename/update/delete icon applied the preset
  instead of running the action: keydown bubbled to the card.
- Dates follow the console's locale, not the browser's. The dashboard's
  PIN-pending tile says "Waiting"/"None" instead of "●"/"—".
- The Bun entry warns when TLS is half-configured, or when PUNKTFUNK_UI_SECURE
  is set without it — both of which silently break login.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

web/src/sections/Displays/DisplayCard.tsx

@@ -1,4 +1,5 @@
 import { useQueryClient } from "@tanstack/react-query";
+import { useBlocker } from "@tanstack/react-router";
 import { Button } from "@unom/ui/button";
 import { toast } from "@unom/ui/toast";
 import { Pencil, Plus, RefreshCw, Trash2 } from "lucide-react";
@@ -150,14 +151,17 @@ export const DisplaySection: FC = () => {
 		if (seeded.current) setDraft(seeded.current);
 	};
 
-	// Last line of defence: a reload/close with pending edits loses them silently otherwise. The
-	// browser shows its own generic wording — the text is ignored, only returning a value counts.
-	useEffect(() => {
-		if (!dirty) return;
-		const warn = (e: BeforeUnloadEvent) => e.preventDefault();
-		window.addEventListener("beforeunload", warn);
-		return () => window.removeEventListener("beforeunload", warn);
-	}, [dirty]);
+	// Don't lose pending edits, whichever way the operator leaves.
+	//
+	// This used to be a bare `beforeunload` listener, which only covers a reload or a tab close —
+	// clicking "Host" in the sidebar is a client-side route change the browser never hears about,
+	// so the draft vanished with no prompt at all. The router's blocker covers in-app navigation
+	// AND still arms `beforeunload` for the reload case, so it replaces the listener outright.
+	useBlocker({
+		shouldBlockFn: () => !confirm(m.display_discard_confirm()),
+		enableBeforeUnload: () => dirty,
+		disabled: !dirty,
+	});
 
 	return (
 		<div className="flex flex-col gap-card">
@@ -174,17 +178,30 @@ export const DisplaySection: FC = () => {
 					<p className="max-w-prose text-sm text-muted-foreground">
 						{m.host_displays_help()}
 					</p>
+					{/* Once the form is on screen, a FAILED BACKGROUND POLL must not replace it — the
+					    operator may be mid-edit, and swapping the card for an error box throws the
+					    draft away to report a refetch we could simply retry. Only a failure with
+					    nothing to show is worth the error state. */}
 					<QueryState
 						isLoading={q.isLoading}
-						error={q.error}
+						error={draft ? undefined : q.error}
 						refetch={q.refetch}
 					>
+						{draft && q.error && (
+							<p
+								role="status"
+								className="rounded-md border border-amber-500/40 bg-amber-500/10 px-3 py-2 text-sm"
+							>
+								{m.display_refresh_failed()}
+							</p>
+						)}
 						{q.data && draft && (
 							<DisplayForm
 								draft={draft}
 								setDraft={setDraft}
 								presets={q.data.presets}
 								customPresets={q.data.custom_presets}
+								serverEffective={q.data.effective}
 								apply={apply}
 								applyAxis={applyAxis}
 								saveDraft={saveDraft}
@@ -224,6 +241,8 @@ const DisplayForm: FC<{
 	setDraft: (p: DisplayPolicy) => void;
 	presets: { id: string; summary: string; fields: EffectivePolicy }[];
 	customPresets: CustomPreset[];
+	/** What the host reports as IN FORCE right now — not derived from the local draft. */
+	serverEffective: EffectivePolicy;
 	apply: (p: DisplayPolicy) => void;
 	/** Apply one orthogonal axis on top of the SAVED policy — never the unsaved draft. */
 	applyAxis: (patch: Partial<DisplayPolicy>) => void;
@@ -240,6 +259,7 @@ const DisplayForm: FC<{
 	setDraft,
 	presets,
 	customPresets,
+	serverEffective,
 	apply,
 	applyAxis,
 	saveDraft,
@@ -736,25 +756,29 @@ const DisplayForm: FC<{
 				onSet={(on) => applyAxis({ pnp_disable_monitors: on })}
 			/>
 
-			{/* What's in force right now */}
+			{/* What's in force right now — read from the API's `effective`, not from the local draft.
+			    Deriving it from the draft meant the row restated the operator's unsaved edits back to
+			    them as though the host had already adopted them. */}
 			<div className="flex flex-wrap items-center gap-2 border-t pt-3">
 				<span className="text-sm text-muted-foreground">
 					{m.display_effective()}:
 				</span>
-				<Badge variant="secondary">{fmtKeepAlive(effective.keep_alive)}</Badge>
 				<Badge variant="secondary">
-					{tr(TOPOLOGY_LABEL, effective.topology)}
+					{fmtKeepAlive(serverEffective.keep_alive)}
+				</Badge>
+				<Badge variant="secondary">
+					{tr(TOPOLOGY_LABEL, serverEffective.topology)}
 				</Badge>
 				<Badge variant="outline">
-					{tr(CONFLICT_LABEL, effective.mode_conflict)}
+					{tr(CONFLICT_LABEL, serverEffective.mode_conflict)}
 				</Badge>
 				<Badge variant="outline">
-					{tr(IDENTITY_LABEL, effective.identity)}
+					{tr(IDENTITY_LABEL, serverEffective.identity)}
 				</Badge>
 				<Badge variant="outline">
-					{tr(LAYOUT_LABEL, effective.layout.mode)}
+					{tr(LAYOUT_LABEL, serverEffective.layout.mode)}
 				</Badge>
-				<Badge variant="outline">{`${effective.max_displays}×`}</Badge>
+				<Badge variant="outline">{`${serverEffective.max_displays}×`}</Badge>
 				{(draft.game_session ?? "auto") === "dedicated" && (
 					<Badge variant="secondary">
 						{m.display_game_session_dedicated()}
@@ -920,8 +944,13 @@ const CustomPresetCard: FC<{
 			tabIndex={busy ? -1 : 0}
 			aria-pressed={selected}
 			aria-disabled={busy || undefined}
+			aria-label={m.display_preset_apply_named({ name: preset.name })}
 			onClick={() => !busy && onApply()}
 			onKeyDown={(e) => {
+				// Only when the CARD itself has focus. Keydown bubbles, so Enter/Space on the
+				// rename/update/delete icons inside it also reached here and applied the preset
+				// instead of running the icon's action — a keyboard user could not delete a preset.
+				if (e.target !== e.currentTarget) return;
 				if (e.key === "Enter" || e.key === " ") {
 					e.preventDefault();
 					if (!busy) onApply();

web/src/sections/Host/UpdateCard.tsx

@@ -1,12 +1,14 @@
 import { useQueryClient } from "@tanstack/react-query";
 import { Button } from "@unom/ui/button";
+import { toast } from "@unom/ui/toast";
 import { type FC, type ReactNode, useState } from "react";
+import { ApiError } from "@/api/fetcher";
+import type { UpdateStatus } from "@/api/gen/model";
 import {
 	getGetUpdateStatusQueryKey,
 	useForceUpdateCheck,
 	useGetUpdateStatus,
 } from "@/api/gen/update/update";
-import type { UpdateStatus } from "@/api/gen/model";
 import { QueryState } from "@/components/query-state";
 import { Badge } from "@/components/ui/badge";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
@@ -21,6 +23,8 @@ import {
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Spinner } from "@/components/ui/spinner";
+import { apiErrorMessage } from "@/lib/errors";
+import { fmtDateTimeSecs } from "@/lib/format";
 import type { Loadable } from "@/lib/query";
 import { m } from "@/paraglide/messages";
 
@@ -67,6 +71,14 @@ export const UpdateSection: FC = () => {
 			onSuccess: (fresh) => {
 				qc.setQueryData(getGetUpdateStatusQueryKey(), fresh);
 			},
+			// The host throttles repeat checks (429). Swallowing it made a second click within the
+			// window look like a dead button; say the check was skipped and why.
+			onError: (e) =>
+				toast.error(
+					e instanceof ApiError && e.status === 429
+						? m.update_apply_throttled()
+						: (apiErrorMessage(e) ?? m.update_error()),
+				),
 		});
 
 	return (
@@ -75,9 +87,8 @@ export const UpdateSection: FC = () => {
 			onCheck={checkNow}
 			checkBusy={check.isPending}
 			applying={applying}
-			onApplied={(target) =>
-				setApplying({ target, startedAt: Date.now() })
-			}
+			onApplied={(target) => setApplying({ target, startedAt: Date.now() })}
+			onGiveUp={() => setApplying(null)}
 		/>
 	);
 };
@@ -88,11 +99,18 @@ export const UpdateCard: FC<{
 	checkBusy: boolean;
 	applying: { target: string; startedAt: number } | null;
 	onApplied: (target: string) => void;
-}> = ({ state, onCheck, checkBusy, applying, onApplied }) => {
+	/** Leave the applying state after a timeout — otherwise the card waits forever. */
+	onGiveUp: () => void;
+}> = ({ state, onCheck, checkBusy, applying, onApplied, onGiveUp }) => {
 	const s = state.data;
 	const inFlight = Boolean(applying) || Boolean(s?.job);
 	const timedOut =
 		applying !== null && Date.now() - applying.startedAt > APPLY_TIMEOUT_MS;
+	// Is the snapshot we are rendering still being refreshed? While the host is gone the query
+	// keeps its LAST payload — including a `job` that was in progress when it went away — so the
+	// timeout warning, gated on `!job`, could never fire in the one case it exists for. A failing
+	// poll means the job field describes a host we can no longer see.
+	const snapshotStale = Boolean(state.error);
 	return (
 		<Card>
 			<CardHeader className="flex flex-row items-center justify-between">
@@ -156,6 +174,8 @@ export const UpdateCard: FC<{
 									status={s}
 									reconnecting={Boolean(state.error)}
 									timedOut={timedOut}
+									snapshotStale={snapshotStale}
+									onGiveUp={onGiveUp}
 								/>
 							) : s.available ? (
 								s.apply === "full" || s.apply === "staged" ? (
@@ -214,7 +234,7 @@ export const UpdateCard: FC<{
 										{s.last_checked_unix != null && (
 											<span className="text-xs text-muted-foreground">
 												{m.update_last_checked()}{" "}
-												{new Date(s.last_checked_unix * 1000).toLocaleString()}
+												{fmtDateTimeSecs(s.last_checked_unix)}
 											</span>
 										)}
 									</div>
@@ -356,7 +376,10 @@ const ApplyProgress: FC<{
 	status: UpdateStatus;
 	reconnecting: boolean;
 	timedOut: boolean;
-}> = ({ status, reconnecting, timedOut }) => {
+	/** The rendered snapshot can no longer be refreshed — its `job` may describe a vanished host. */
+	snapshotStale: boolean;
+	onGiveUp: () => void;
+}> = ({ status, reconnecting, timedOut, snapshotStale, onGiveUp }) => {
 	const job = status.job;
 	const pct =
 		job?.total_bytes && job.total_bytes > 0
@@ -396,12 +419,18 @@ const ApplyProgress: FC<{
 					/>
 				</div>
 			)}
-			{/* A live job (e.g. the Deck's tens-of-minutes source rebuild) is not "timed out" —
-			    the warning is for the host being GONE longer than a restart explains. */}
-			{timedOut && !job && (
-				<p className="rounded-md border border-amber-500/40 bg-amber-500/10 p-3 text-sm">
-					{m.update_apply_timeout()}
-				</p>
+			{/* A job we can still SEE progressing (e.g. the Deck's tens-of-minutes source rebuild) is
+			    not "timed out" — the warning is for the host being GONE longer than a restart
+			    explains. A stale snapshot's job does not count as seeing one. */}
+			{timedOut && (!job || snapshotStale) && (
+				<div className="space-y-2 rounded-md border border-amber-500/40 bg-amber-500/10 p-3 text-sm">
+					<p>{m.update_apply_timeout()}</p>
+					{/* Without this the card sits in "applying" forever and the operator cannot even
+					    re-check — the state was only ever cleared by a status that never arrives. */}
+					<Button variant="outline" size="sm" onClick={onGiveUp}>
+						{m.update_apply_give_up()}
+					</Button>
+				</div>
 			)}
 		</div>
 	);

web/src/sections/Stats/LiveCard.tsx

@@ -1,4 +1,4 @@
-import type { FC } from "react";
+import { type FC, useMemo } from "react";
 import { ApiError } from "@/api/fetcher";
 import type { Capture } from "@/api/gen/model/capture";
 import {
@@ -27,9 +27,27 @@ export const LiveSection: FC = () => {
 	return <LiveCard live={live} />;
 };
 
+/**
+ * How many samples the live charts plot.
+ *
+ * The live endpoint returns the capture SO FAR, which grows without bound — a capture left running
+ * over an evening is tens of thousands of samples, re-serialised and re-plotted every 2 s. The tail
+ * is also the only part anyone watches live (the full series is what the saved recording is for),
+ * so plot a bounded window and leave the rest to the detail view.
+ */
+const LIVE_WINDOW = 600;
+
 /** Live graphs while a capture is armed: latency stack + throughput. */
 export const LiveCard: FC<{ live: Loadable<Capture> }> = ({ live }) => {
-	const samples = live.data?.samples ?? [];
+	const all = live.data?.samples;
+	// Memoised on the array identity: React Query keeps it stable when a poll changed nothing, so
+	// an unchanged poll costs no re-slice and — because `samples` keeps its identity — no chart
+	// rebuild either (the charts memoise on exactly this).
+	const samples = useMemo(
+		() =>
+			all && all.length > LIVE_WINDOW ? all.slice(-LIVE_WINDOW) : (all ?? []),
+		[all],
+	);
 	// A 404 is the expected transient right after arming (the capture isn't there yet) — treat it as
 	// "waiting". Surface any OTHER error (500, network drop) instead of silently showing "waiting".
 	const error =
@@ -58,6 +76,11 @@ export const LiveCard: FC<{ live: Loadable<Capture> }> = ({ live }) => {
 							<ChartBlock title={m.stats_throughput_title()}>
 								<ThroughputChart samples={samples} />
 							</ChartBlock>
+							{(live.data?.samples?.length ?? 0) > LIVE_WINDOW && (
+								<p className="text-xs text-muted-foreground">
+									{m.stats_live_window({ count: LIVE_WINDOW })}
+								</p>
+							)}
 						</>
 					)}
 				</QueryState>

web/src/sections/Stats/charts.tsx

@@ -4,7 +4,7 @@
 // otherwise render a 0×0 (or warn). The charts adapt to whatever stages a sample
 // carries — native (queue/capture/submit/encode/send) and gamestream
 // (capture/encode/packetize/send) both stack sensibly.
-import { type ReactElement, useEffect, useState } from "react";
+import { type ReactElement, useEffect, useMemo, useState } from "react";
 import {
 	Area,
 	AreaChart,
@@ -85,6 +85,55 @@ function colorFor(name: string, i: number): string {
 	return STAGE_COLORS[name] ?? PALETTE[i % PALETTE.length] ?? "#6c5bf3";
 }
 
+/**
+ * Shared X-axis config for every chart here.
+ *
+ * `type="number"` + an explicit domain, NOT recharts' default category axis. As a category axis
+ * every sample is one evenly-spaced slot, so a capture that idled for two minutes drew that gap as
+ * a single step and the timeline was a lie — precisely the thing you are reading these charts to
+ * find. As a number axis the spacing is the actual elapsed time.
+ */
+const timeAxis = {
+	dataKey: "t",
+	type: "number",
+	domain: ["dataMin", "dataMax"],
+	scale: "time",
+	tick: axisTick,
+	stroke: gridStroke,
+	unit: "s",
+	allowDecimals: false,
+} as const;
+
+/**
+ * Split a capture at every session boundary and insert a gap between the pieces.
+ *
+ * A capture can span more than one session (`StatsSample.session_id`), and joining those samples
+ * into one continuous line implies a continuity that never existed — the stream stopped and a
+ * different client started a new one. Recharts breaks a line wherever a value is `null`, so one
+ * spacer row between sessions renders the discontinuity without any per-chart special-casing.
+ */
+function withSessionBreaks<T extends { t: number }>(
+	samples: StatsSample[],
+	rows: T[],
+): (T | { t: number })[] {
+	const out: (T | { t: number })[] = [];
+	for (let i = 0; i < rows.length; i++) {
+		const row = rows[i];
+		if (!row) continue;
+		const prev = samples[i - 1];
+		const cur = samples[i];
+		if (prev && cur && prev.session_id !== cur.session_id) {
+			// A bare `t` row: every series key is absent ⇒ null ⇒ recharts lifts the pen.
+			out.push({ t: row.t - 0.001 });
+		}
+		out.push(row);
+	}
+	return out;
+}
+
+/** Seconds since the capture began, as a number (see `timeAxis`). */
+const tSeconds = (s: StatsSample): number => s.t_ms / 1000;
+
 /** Latency stacked-area (µs) — the "where does the time go" view. With `toggle`, a
  *  p50/p99 switch flips every stage band between its median and tail. */
 export function LatencyChart({
@@ -95,24 +144,42 @@ export function LatencyChart({
 	toggle?: boolean;
 }) {
 	const [p99, setP99] = useState(false);
-	const names = stageNames(samples);
-	const rows = samples.map((s) => {
-		const row: Record<string, number> = { t: Math.round(s.t_ms / 1000) };
-		const byName = new Map(s.stages.map((st) => [st.name, st] as const));
-		for (const n of names) {
-			const st = byName.get(n);
-			row[n] = st ? (p99 ? st.p99_us : st.p50_us) : 0;
-		}
-		return row;
-	});
+	const names = useMemo(() => stageNames(samples), [samples]);
+	// Memoised: this walks every sample × every stage, and the live card re-renders it on a 2 s
+	// poll. Without this the whole series was rebuilt on every unrelated render too.
+	const rows = useMemo(() => {
+		const built = samples.map((s) => {
+			// `t` is declared on the type so the row satisfies `withSessionBreaks`' constraint;
+			// the stage columns are added by name below.
+			const row: Record<string, number> & { t: number } = { t: tSeconds(s) };
+			const byName = new Map(s.stages.map((st) => [st.name, st] as const));
+			for (const n of names) {
+				const st = byName.get(n);
+				row[n] = st ? (p99 ? st.p99_us : st.p50_us) : 0;
+			}
+			return row;
+		});
+		return withSessionBreaks(samples, built);
+	}, [samples, names, p99]);
 
 	return (
 		<div className="space-y-2">
 			{toggle && (
-				<div className="flex justify-end">
-					<Button variant="outline" size="sm" onClick={() => setP99((v) => !v)}>
-						{p99 ? m.stats_p99() : m.stats_p50()}
-					</Button>
+				// The button used to be labelled with the percentile currently PLOTTED while looking
+				// like an action, so it read as "click to show p99" when p99 was already showing.
+				// Two explicit options, with the active one pressed, says which is which.
+				<div className="flex justify-end gap-1">
+					{([false, true] as const).map((wantP99) => (
+						<Button
+							key={String(wantP99)}
+							variant={p99 === wantP99 ? "default" : "outline"}
+							size="sm"
+							aria-pressed={p99 === wantP99}
+							onClick={() => setP99(wantP99)}
+						>
+							{wantP99 ? m.stats_p99() : m.stats_p50()}
+						</Button>
+					))}
 				</div>
 			)}
 			<ChartFrame>
@@ -121,7 +188,7 @@ export function LatencyChart({
 					margin={{ top: 6, right: 8, left: 0, bottom: 0 }}
 				>
 					<CartesianGrid strokeDasharray="3 3" stroke={gridStroke} />
-					<XAxis dataKey="t" tick={axisTick} stroke={gridStroke} unit="s" />
+					<XAxis {...timeAxis} />
 					<YAxis
 						tick={axisTick}
 						stroke={gridStroke}
@@ -151,19 +218,26 @@ export function LatencyChart({
 
 /** New vs repeat fps (left axis) + tx goodput Mb/s vs the configured target (right axis). */
 export function ThroughputChart({ samples }: { samples: StatsSample[] }) {
-	const rows = samples.map((s) => ({
-		t: Math.round(s.t_ms / 1000),
-		fps: s.fps,
-		repeat: s.repeat_fps,
-		mbps: s.mbps,
-		// The configured encoder target (kbps → Mb/s) so goodput can be read against it.
-		target: s.bitrate_kbps / 1000,
-	}));
+	const rows = useMemo(
+		() =>
+			withSessionBreaks(
+				samples,
+				samples.map((s) => ({
+					t: tSeconds(s),
+					fps: s.fps,
+					repeat: s.repeat_fps,
+					mbps: s.mbps,
+					// The configured encoder target (kbps → Mb/s) so goodput reads against it.
+					target: s.bitrate_kbps / 1000,
+				})),
+			),
+		[samples],
+	);
 	return (
 		<ChartFrame>
 			<LineChart data={rows} margin={{ top: 6, right: 8, left: 0, bottom: 0 }}>
 				<CartesianGrid strokeDasharray="3 3" stroke={gridStroke} />
-				<XAxis dataKey="t" tick={axisTick} stroke={gridStroke} unit="s" />
+				<XAxis {...timeAxis} />
 				<YAxis
 					yAxisId="fps"
 					tick={axisTick}
@@ -233,13 +307,20 @@ export function HealthChart({
 	samples: StatsSample[];
 	kind?: string;
 }) {
-	const rows = samples.map((s) => ({
-		t: Math.round(s.t_ms / 1000),
-		frames: s.frames_dropped,
-		packets: s.packets_dropped,
-		send: s.send_dropped,
-		fec: s.fec_recovered,
-	}));
+	const rows = useMemo(
+		() =>
+			withSessionBreaks(
+				samples,
+				samples.map((s) => ({
+					t: tSeconds(s),
+					frames: s.frames_dropped,
+					packets: s.packets_dropped,
+					send: s.send_dropped,
+					fec: s.fec_recovered,
+				})),
+			),
+		[samples],
+	);
 	return (
 		<>
 			{kind === "gamestream" && (
@@ -253,7 +334,7 @@ export function HealthChart({
 					margin={{ top: 6, right: 8, left: 0, bottom: 0 }}
 				>
 					<CartesianGrid strokeDasharray="3 3" stroke={gridStroke} />
-					<XAxis dataKey="t" tick={axisTick} stroke={gridStroke} unit="s" />
+					<XAxis {...timeAxis} />
 					<YAxis
 						tick={axisTick}
 						stroke={gridStroke}

web/src/sections/Stats/helpers.tsx

@@ -1,4 +1,5 @@
 import type { FC, ReactNode } from "react";
+import { fmtDateTime } from "@/lib/format";
 import { m } from "@/paraglide/messages";
 
 /** ms → `m:ss`. */
@@ -7,9 +8,9 @@ export function fmtDuration(ms: number): string {
 	return `${Math.floor(s / 60)}:${(s % 60).toString().padStart(2, "0")}`;
 }
 
+/** Locale-aware (see lib/format.ts) — a bare `toLocaleString` follows the BROWSER, not the app. */
 export function fmtTimestamp(unixMs: number): string {
-	if (!unixMs) return "—";
-	return new Date(unixMs).toLocaleString();
+	return fmtDateTime(unixMs);
 }
 
 export function kindLabel(kind: string): string {

web/src/sections/Store/Browse.tsx

@@ -31,6 +31,11 @@ export const BrowseTab: FC<{
 	onInstallSpec: () => void;
 }> = ({ onInstall, onInstallSpec }) => {
 	const catalog = useStoreCatalog();
+	// Sources that could not be fetched — the difference between "this host has no plugins" and
+	// "the console could not find out".
+	const failedSources = (catalog.data?.sources ?? []).filter(
+		(src) => src.error || src.stale,
+	);
 	const [query, setQuery] = useState("");
 	const [source, setSource] = useState<string | null>(null);
 
@@ -97,7 +102,16 @@ export const BrowseTab: FC<{
 							flush
 							className="p-8 text-center text-sm text-muted-foreground"
 						>
-							{entries.length === 0 ? m.store_empty() : m.store_no_match()}
+							{entries.length > 0
+								? m.store_no_match()
+								: failedSources.length > 0
+									? // An all-sources-failed catalog is a SUCCESSFUL request that happens to
+										// carry nothing, so "no plugins available" was the console reporting a
+										// broken fetch as an empty store. Name the sources that failed.
+										m.store_all_sources_failed({
+											sources: failedSources.map((f) => f.name).join(", "),
+										})
+									: m.store_empty()}
 						</CardContent>
 					</Card>
 				) : (

web/src/sections/Store/Installed.tsx

@@ -89,7 +89,7 @@ export const InstalledList: FC<{
 											</div>
 										</TableCell>
 										<TableCell className="py-4 text-sm tabular-nums text-muted-foreground">
-											v{p.version}
+											{p.version ? `v${p.version}` : m.store_version_unknown()}
 										</TableCell>
 										<TableCell className="py-4">
 											<span className="inline-flex items-center gap-1.5 text-xs text-muted-foreground">

web/src/sections/Store/Sources.tsx

@@ -31,15 +31,17 @@ import {
 } from "@/components/ui/dialog";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
+import { fmtDateTimeSecs } from "@/lib/format";
 import { m } from "@/paraglide/messages";
 
 /** A source the operator has filled in but not yet agreed to trust. The console password is NOT
  * part of the draft — it is collected by the trust dialog, at the moment the decision is made. */
 type SourceDraft = Omit<SourceBody, "password"> & { name: string };
 
-/** Unix seconds → a locale date-time, or "never" for a source that has never fetched. */
+/** Unix seconds → a locale date-time, or "never" for a source that has never fetched.
+ * Locale-aware via lib/format.ts — `toLocaleString` follows the browser, not the console. */
 const fmtFetched = (secs: number): string =>
-	secs > 0 ? new Date(secs * 1000).toLocaleString() : m.store_source_never();
+	secs > 0 ? fmtDateTimeSecs(secs) : m.store_source_never();
 
 /**
  * Container: the catalog sources. Owns the source listing, the refresh-all action, and add/remove.

web/src/sections/Store/index.tsx

@@ -1,13 +1,15 @@
 import Section from "@unom/ui/section";
 import { toast } from "@unom/ui/toast";
-import { type FC, useState } from "react";
+import { type FC, useEffect, useState } from "react";
 import { ApiError } from "@/api/fetcher";
 import {
 	type InstallBody,
 	type InstalledPlugin,
+	runningJob,
 	type StoreEntry,
 	useInstallPlugin,
 	useStoreCatalog,
+	useStoreJobs,
 	useUninstallPlugin,
 } from "@/api/store";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
@@ -39,6 +41,14 @@ export const SectionStore: FC = () => {
 	const [jobId, setJobId] = useState<string | null>(null);
 
 	const catalog = useStoreCatalog();
+	// Re-attach to a job that was already running when this page loaded — an install survives a
+	// reload on the host side, and losing sight of it left the Install buttons armed against a host
+	// that answers 409.
+	const jobs = useStoreJobs();
+	const orphan = runningJob(jobs.data);
+	useEffect(() => {
+		if (orphan && !jobId) setJobId(orphan.id);
+	}, [orphan, jobId]);
 	const install = useInstallPlugin();
 	const uninstall = useUninstallPlugin();