web: deep-link from RightSidebar to folder/map + anchor-mode timeline + fix root count

RightSidebar:
- Folder + Location rows gain a small ArrowUpRight icon button that
  deep-links into the timeline / map view focused on the photo. OSM
  external link removed; the in-app map nav covers the same job.

Folder navigation:
- New navigateToFolder(path, { focusUid, focusTakenAt }) helper in the
  filters store; LeftSidebar's pickFolder collapses to a one-liner that
  reuses it.
- One-shot pending-focus stash carries both UID and TakenAt across the
  goto. URL-watch effect on the timeline consumes the stash so even
  same-folder navigations (where the filter doesn't change) get
  picked up.

Anchor-mode timeline query:
- listPhotosAround(q, takenAt, after, before) issues two parallel
  PhotoPrism calls (`after:<day-1>` oldest-first + `before:<day+1>`
  newest-first), merges + dedupes newest-first. Uses PhotoPrism's
  existing date-only DSL clauses — no server changes.
- When a deep-link stashes a TakenAt, page 0 of the photosQuery uses
  the merged window so the target photo is loaded even for photos
  buried past the standard newest-first cursor. Pages 1+ are disabled
  in anchor mode (PhotoPrism's day-precision cursor would infinite-loop
  on dense days; users see 120 around the target, refresh to drop the
  anchor).
- After page 0 lands, the existing scrollToIndex(targetIdx) expands the
  windowed render set + scrolls the tile into view.

Map view:
- /map honors `?lat=&lng=&zoom=&focus=` URL params, jumping to the
  photo's coordinates at zoom 17 instead of fitBounds-ing the full
  library. Params are stripped after first apply so a manual zoom-out
  + reload doesn't snap back.

LeftSidebar root count badge:
- Now matches what Cmd+A selects in the timeline. Old code used
  /config.count.all (library aggregate, includes archived/hidden/
  review). Switched to countPhotos('', { merged: true }) which counts
  the actual photo entries the timeline lists.
- countPhotos gains a `merged` option; with merged=true it returns the
  response body length instead of the X-Count header — PhotoPrism's
  X-Count is always the file-row count regardless of merged, so a
  HEIC + JPG companion pair inflated the badge to 2.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/src/lib/components/layout/LeftSidebar.svelte

@@ -41,6 +41,7 @@
 	} from '$lib/services/adapters/review';
 	import {
 		filters,
+		navigateToFolder,
 		setFolderPath,
 		setSection,
 		TAG_CATEGORIES,
@@ -223,23 +224,40 @@
 	}));
 	const folderCounts = $derived(folderCountsQuery.data ?? {});
 
-	// Root entry shows "the user's library" — for admins without a
-	// BasePath that's still the whole library, served cheaply from
-	// /api/v1/config's `count.all`. For any user with a non-empty
-	// BasePath the precomputed total is wrong (it's library-wide), so we
-	// ask the sidecar for a recursive count rooted at the user's
-	// BasePath — listFolderCounts maps `""` through toOriginalsPath, which
-	// resolves to the BasePath itself, and the sidecar fan-out recurses.
+	// Root entry shows "the user's library" using the same filter the
+	// timeline applies at folderPath=='/' — empty q, which PhotoPrism
+	// resolves to the visible listing (no archived / hidden / review).
+	// Earlier this used /config's `count.all`, but that aggregate
+	// includes those buckets and didn't match what the user can actually
+	// click "select all" on; the discrepancy was confusing
+	// (LeftSidebar said 357, the action bar said ~329).
+	//
+	// `scopedRootCountQuery` retains the sidecar fan-out for users with
+	// a BasePath — `listFolderCounts(['''])` resolves `''` through
+	// `toOriginalsPath` to the user's BasePath and recurses, so it picks
+	// up the same subset PhotoPrism would. Empty BasePath admins use the
+	// PhotoPrism count-via-X-Count path so both surfaces agree.
 	const scopedRootCountQuery = createQuery<Record<string, number>>(() => ({
 		queryKey: ['photos', 'root-count', userBasePath()],
 		queryFn: () => listFolderCounts(['']),
 		enabled: isAuthenticated() && userBasePath() !== '',
 		staleTime: 60_000
 	}));
+	const visibleRootCountQuery = createQuery<number>(() => ({
+		queryKey: ['photos', 'visible-root-count', userBasePath()],
+		// `merged: true` so the count matches the timeline's photo entries
+		// (one per logical photo) rather than its file-row total. Without
+		// it, sidecar/companion files inflate the badge — e.g. a HEIC + JPG
+		// pair counts twice — and "select all" in the timeline never
+		// reaches the badge's number.
+		queryFn: () => countPhotos(scoped(''), { merged: true }),
+		enabled: isAuthenticated() && userBasePath() === '' && isAdminUser,
+		staleTime: 60_000
+	}));
 	const rootCount = $derived(
 		userBasePath() === ''
 			? isAdminUser
-				? (configQuery.data?.count?.all ?? 0)
+				? (visibleRootCountQuery.data ?? 0)
 				: 0
 			: (scopedRootCountQuery.data?.[''] ?? 0)
 	);
@@ -490,14 +508,7 @@
 	}
 
 	async function pickFolder(folderPath: string) {
-		// Folder selection works on top of the All Photos section; clearing
-		// the heap/section context mirrors mule-image's "drill into folder"
-		// behaviour. The URL sync $effect on the timeline picks this up.
-		setSection('all-photos');
-		setFolderPath(folderPath);
-		const params = new URLSearchParams();
-		params.set('folder', folderPath);
-		await goto(`/?${params.toString()}`, { keepFocus: true, noScroll: true });
+		await navigateToFolder(folderPath);
 	}
 
 	function onCreateHeap() {

web/src/lib/components/sidebar/RightSidebar.svelte

@@ -6,18 +6,20 @@
 	PUT (Details fields need the full body).
 -->
 <script lang="ts">
+	import { goto } from '$app/navigation';
 	import { page } from '$app/state';
 	import { createMutation, createQuery, useQueryClient } from '@tanstack/svelte-query';
 	import { toast } from 'svelte-sonner';
 	import {
 		Aperture,
+		ArrowUpRight,
 		Calendar,
-		ExternalLink,
 		File,
 		Folder,
 		HardDrive,
 		ImageIcon,
 		Loader2,
+		Map as MapIcon,
 		MapPin,
 		Star,
 		Tag,
@@ -39,6 +41,7 @@
 	import { push as pushUndo } from '$lib/stores/undo.svelte';
 	import { getMetadataSectionOpen, setMetadataSection } from '$lib/stores/view.svelte';
 	import { photoNameAndDir, primaryFile, type PpPhoto } from '$lib/types/photoprism';
+	import { navigateToFolder } from '$lib/stores/filters.svelte';
 	import { COLOR_SWATCHES } from '$lib/utils/tagGroups';
 	import { suggestDateFromPath } from '$lib/utils/suggestDateFromPath';
 
@@ -282,12 +285,6 @@
 				? photo.Country.toUpperCase()
 				: ''
 	);
-	const mapsHref = $derived(
-		photo.Lat && photo.Lng
-			? `https://www.openstreetmap.org/?mlat=${photo.Lat}&mlon=${photo.Lng}&zoom=15`
-			: ''
-	);
-
 	function formatCameraLens(c?: { Make?: string; Model?: string; Name?: string }): string {
 		if (!c) return '';
 		const make = c.Make ?? '';
@@ -377,16 +374,31 @@
 			</div>
 		{/if}
 
-		<!-- Folder (read-only). The `px-1 py-0.5` mirrors the input
-		     padding on filename / date so the read-only text starts at the
-		     same x-offset as the editable rows above — otherwise spans
-		     hug the icon while inputs sit 4px in. Root-level files render
-		     as `/` so the row never disappears and the layout stays stable. -->
+		<!-- Folder (read-only label + open-in-timeline icon). The `px-1 py-0.5`
+		     mirrors the input padding on filename / date so the read-only
+		     text starts at the same x-offset as the editable rows above —
+		     otherwise spans hug the icon while inputs sit 4px in. Root-level
+		     files render as `/` so the row never disappears. The arrow-up-
+		     right icon navigates to the timeline filtered by this folder
+		     with the photo pre-focused. -->
 		<div class="flex items-center gap-2">
 			<Folder class="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
 			<span class="min-w-0 flex-1 truncate px-1 py-0.5 text-muted-foreground" title={folderLabel}>
 				{folderLabel}
 			</span>
+			<button
+				type="button"
+				class="text-muted-foreground hover:text-foreground"
+				onclick={() =>
+					void navigateToFolder(dirPath || '/', {
+						focusUid: photo.UID,
+						focusTakenAt: photo.TakenAt ?? null
+					})}
+				title="Open folder in timeline"
+				aria-label="Open folder in timeline"
+			>
+				<ArrowUpRight class="h-3 w-3" />
+			</button>
 		</div>
 
 		<!-- Dimensions -->
@@ -405,22 +417,29 @@
 			</span>
 		</div>
 
-		<!-- Location -->
+		<!-- Location (read-only label + open-on-map icon). The arrow-up-
+		     right icon flies the in-app map to the photo's coordinates at
+		     zoom 17 (close enough for the photo's marker to be its own,
+		     out of any cluster). Hidden when the photo has no
+		     coordinates. -->
 		<div class="flex items-center gap-2">
 			<MapPin class="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
 			<span class="min-w-0 flex-1 truncate px-1 py-0.5 text-muted-foreground">
 				{placeLabel || 'No location'}
 			</span>
-			{#if mapsHref}
-				<a
-					href={mapsHref}
-					target="_blank"
-					rel="noopener"
+			{#if photo.Lat && photo.Lng}
+				<button
+					type="button"
 					class="text-muted-foreground hover:text-foreground"
-					title="Open in OpenStreetMap"
+					onclick={() =>
+						void goto(
+							`/map?lat=${photo.Lat}&lng=${photo.Lng}&zoom=17&focus=${photo.UID}`
+						)}
+					title="Open on map"
+					aria-label="Open on map"
 				>
-					<ExternalLink class="h-3 w-3" />
-				</a>
+					<MapIcon class="h-3 w-3" />
+				</button>
 			{/if}
 		</div>
 	</dl>

web/src/lib/components/timeline/BulkActionBar.svelte

@@ -54,6 +54,14 @@
 		selection.ids.size > 0 ? selection.ids.size : selection.focused ? 1 : 0
 	);
 	const isBulk = $derived(selection.ids.size > 0);
+	// Filename for the single-focus label. Re-derives whenever
+	// selection.focused flips — cachedPhoto reads from the same query
+	// cache that drives the visible tiles, so the name resolves on the
+	// same tick the tile renders.
+	const focusedPhoto = $derived(selection.focused ? cachedPhoto(selection.focused) : undefined);
+	const focusedName = $derived(
+		focusedPhoto ? photoNameAndDir(focusedPhoto).fileName : ''
+	);
 	// Review section uses a two-button decision flow (Keep / Archive) —
 	// every other action is hidden so the choice can't be confused with
 	// heap-adding / restoring. The S keybinding is rerouted to approve
@@ -248,13 +256,19 @@
 	<div
 		class="flex min-h-9 shrink-0 items-center gap-2 border-t border-border bg-background px-3 py-1"
 	>
-		<span class="shrink-0 text-[11px] font-medium text-foreground">
-			{#if isBulk}
+		{#if isBulk}
+			<span class="shrink-0 text-[11px] font-medium text-foreground">
 				{targetCount} selected
-			{:else}
-				Focused photo
-			{/if}
-		</span>
+			</span>
+		{:else}
+			<span class="shrink-0 text-[11px] font-medium text-muted-foreground">Focused</span>
+			<span
+				class="min-w-0 truncate text-[11px] font-medium text-foreground"
+				title={focusedName || undefined}
+			>
+				{focusedName || 'photo'}
+			</span>
+		{/if}
 
 		<!--
 			`overflow-x-auto` would clip the heap-picker dropdown — CSS