From 29d0c33558ff2d6f165dadf6525fe6bbeabf8b85 Mon Sep 17 00:00:00 2001
From: SZCJW <792430652@qq.com>
Date: Sun, 27 Sep 2026 15:40:20 +0800
Subject: [PATCH] feat(frontend): merge top-bar search with the filter bar,
 expose kind/created filters

Unify the upstream top-bar search box and the local SearchFilterBar into
one filtering capability sharing a single state store, with the URL as
its projection:

- lib/stores/filter.svelte.ts: module-level $state store, the single
  source of truth; every surface mutates the same proxy in place
- lib/composables/useFilterUrlSync.svelte.ts: one $effect serves both
  directions (URL -> store adoption, store -> URL replaceState write)
  with echo suppression so the loop settles in one round-trip
- FilterFields.svelte: the five selects (type/size/modified/created/
  kind) + recursive switch; word lists and i18n labels live in one
  place; SearchFilterBar reuses it instead of its own copies
- TopBarFilterPanel.svelte: dropdown panel anchored inside the top-bar
  search input (in-field toggle button with active-count badge);
  Escape/outside-click close, no overlay stacking with suggestions
- FilterChips.svelte: dismissible chips on /search, which is now
  URL-driven and loses its three inline <select>s
- New dimensions the backend already supported: kind (file/folder,
  resource_types) and created (created_after); URL keys q/type/size/
  date/created/kind/recursive, non-defaults only, unknown values
  degrade to defaults
- /files keeps in-place filtering (no navigation); folderTarget
  carries filter params through folder entry; ?file= and in/scope
  survive filter writes
- topbar.css: input right padding reserves the three in-field controls

Backend unchanged.

Co-Authored-By: Claude Code <noreply@anthropic.com>
---
 frontend/src/lib/components/AppShell.svelte   | 145 +++++++++++--
 frontend/src/lib/components/AppShell.test.ts  |  46 ++++
 .../src/lib/components/FilterChips.svelte     | 130 +++++++++++
 .../src/lib/components/FilterFields.svelte    | 178 +++++++++++++++
 .../src/lib/components/SearchFilterBar.svelte | 128 ++---------
 .../lib/components/TopBarFilterPanel.svelte   | 122 +++++++++++
 .../composables/useFilterUrlSync.svelte.ts    |  60 ++++++
 frontend/src/lib/stores/filter.svelte.ts      |  36 ++++
 frontend/src/lib/styles/ported/topbar.css     |   4 +-
 frontend/src/lib/utils/searchFilters.test.ts  | 198 ++++++++++++++++-
 frontend/src/lib/utils/searchFilters.ts       | 203 +++++++++++++++++-
 .../src/routes/files/[...path]/+page.svelte   |  54 ++++-
 frontend/src/routes/files/page.test.ts        |  38 ++++
 frontend/src/routes/search/+page.svelte       | 170 +++++----------
 frontend/src/routes/search/page.test.ts       |  33 +++
 frontend/static/locales/ar.json               |  10 +-
 frontend/static/locales/de.json               |  10 +-
 frontend/static/locales/en.json               |  10 +-
 frontend/static/locales/es.json               |  10 +-
 frontend/static/locales/fa.json               |  10 +-
 frontend/static/locales/fr.json               |  10 +-
 frontend/static/locales/hi.json               |  10 +-
 frontend/static/locales/it.json               |  10 +-
 frontend/static/locales/ja.json               |  10 +-
 frontend/static/locales/ko.json               |  10 +-
 frontend/static/locales/nl.json               |  10 +-
 frontend/static/locales/pl.json               |  10 +-
 frontend/static/locales/pt.json               |  10 +-
 frontend/static/locales/ru.json               |  10 +-
 frontend/static/locales/zh-TW.json            |  10 +-
 frontend/static/locales/zh.json               |  10 +-
 status.md                                     |  24 +++
 32 files changed, 1445 insertions(+), 284 deletions(-)
 create mode 100644 frontend/src/lib/components/FilterChips.svelte
 create mode 100644 frontend/src/lib/components/FilterFields.svelte
 create mode 100644 frontend/src/lib/components/TopBarFilterPanel.svelte
 create mode 100644 frontend/src/lib/composables/useFilterUrlSync.svelte.ts
 create mode 100644 frontend/src/lib/stores/filter.svelte.ts

diff --git a/frontend/src/lib/components/AppShell.svelte b/frontend/src/lib/components/AppShell.svelte
index 3bd9a15d..60f7d4a6 100644
--- a/frontend/src/lib/components/AppShell.svelte
+++ b/frontend/src/lib/components/AppShell.svelte
@@ -13,15 +13,22 @@
 	import { lazyComponent } from '$lib/composables/lazyComponent.svelte';
 	import DrivePicker from '$lib/components/DrivePicker.svelte';
 	import ReadOnlyBanner from '$lib/components/ReadOnlyBanner.svelte';
+	import TopBarFilterPanel from '$lib/components/TopBarFilterPanel.svelte';
 	import Icon from '$lib/icons/Icon.svelte';
 	import { dateTimeFormatFor, iconNameFromClass } from '$lib/utils/display';
 	import { userInitials, avatarColorIndex } from '$lib/utils/avatar';
+	import {
+		activeFilterCount,
+		filterParamsToString,
+		filterToSearchOptions
+	} from '$lib/utils/searchFilters';
 	import { i18n, LANGUAGES, setLocale, t, type Locale } from '$lib/i18n/index.svelte';
 	import { serverConfig } from '$lib/stores/serverConfig.svelte';
 	import { serverStatus } from '$lib/stores/serverStatus.svelte';
 	import { apiFetch } from '$lib/api/client';
 	import { dialogs } from '$lib/stores/dialogs.svelte';
 	import { files as filesStore } from '$lib/stores/files.svelte';
+	import { resourceFilters } from '$lib/stores/filter.svelte';
 	import { preferences } from '$lib/stores/preferences.svelte';
 	import { session } from '$lib/stores/session.svelte';
 	import { theme, type Theme } from '$lib/stores/theme.svelte';
@@ -309,7 +316,9 @@
 	let menuOpen = $state(false);
 	let searchQuery = $state('');
 	/** Mobile collapsible-search overlay state (toggles .top-bar--search-active). */
-	let searchActive = $state(false);
+	let mobileSearchOpen = $state(false);
+	/** Top-bar filter dropdown (opens from the button inside the search input). */
+	let filterPanelOpen = $state(false);
 	let langOpen = $state(false);
 	let aboutOpen = $state(false);
 	let appVersion = $state('');
@@ -348,15 +357,26 @@
 	const totalUnreadBadge = $derived(totalUnread > 99 ? '99+' : String(totalUnread));
 
 	function openMobileSearch() {
-		searchActive = true;
+		mobileSearchOpen = true;
 		requestAnimationFrame(() => searchInputEl?.focus());
 	}
 
 	function closeMobileSearch() {
-		searchActive = false;
+		mobileSearchOpen = false;
+		filterPanelOpen = false;
 		clearSearch();
 	}
 
+	function toggleFilterPanel() {
+		filterPanelOpen = !filterPanelOpen;
+		if (filterPanelOpen) {
+			// The two overlays would stack (both anchor to .search-container's
+			// bottom) — the panel wins while it's open; suggestions resume on
+			// the next input event after it closes.
+			suggestOpen = false;
+		}
+	}
+
 	async function openAbout() {
 		menuOpen = false;
 		aboutOpen = true;
@@ -378,6 +398,10 @@
 	let suggestions = $state<Suggestion[]>([]);
 	let suggestOpen = $state(false);
 	let suggestBusy = $state(false);
+	// Live count of active filter presets — drives the toggle button's badge
+	// and its "filters applied" highlight. The shared store is also what the
+	// panel (below) and the files page's filter bar mutate.
+	const filterActiveCount = $derived(activeFilterCount(resourceFilters));
 	let suggestTimer: ReturnType<typeof setTimeout> | null = null;
 	// Stale-response guard (same family as the search page): the debounce
 	// spaces requests out but doesn't stop a SLOW earlier response from
@@ -389,16 +413,21 @@
 		const q = searchQuery.trim();
 		if (!q) return;
 		suggestOpen = false;
-		searchActive = false;
+		filterPanelOpen = false;
+		mobileSearchOpen = false;
+		// Built by hand instead of via `URLSearchParams` because the Svelte
+		// lint (svelte/prefer-svelte-reactivity) flags the mutable stdlib
+		// variant; these params don't need reactivity anyway.
+		const parts = [`q=${encodeURIComponent(q)}`];
+		// Active filter presets ride along (`type=image&kind=file&…`) — the
+		// shared store is what the top-bar panel and the files page's bar
+		// mutate, so submitting from here carries exactly what the user sees.
+		const filterQs = filterParamsToString(resourceFilters);
+		if (filterQs) parts.push(filterQs);
 		// Carry the currently-open folder into the search URL as `?in=<uuid>`
 		// so a hard refresh, a shared link, or a bookmark all restore the
 		// "This folder" scope. Trash section is always global — skip. See
 		// `/search/+page.svelte` for the receiver side.
-		//
-		// Built by hand instead of via `URLSearchParams` because the Svelte
-		// lint (svelte/prefer-svelte-reactivity) flags the mutable stdlib
-		// variant; the two params here don't need reactivity anyway.
-		const parts = [`q=${encodeURIComponent(q)}`];
 		if (filesStore.currentFolder && filesStore.section !== 'trash') {
 			parts.push(`in=${encodeURIComponent(filesStore.currentFolder)}`);
 		}
@@ -411,6 +440,8 @@
 	}
 
 	function onSearchInput() {
+		// The filter panel owns the dropdown area while open — don't fight it.
+		if (filterPanelOpen) return;
 		if (suggestTimer) clearTimeout(suggestTimer);
 		const q = searchQuery.trim();
 		if (q.length < 2) {
@@ -428,7 +459,13 @@
 			suggestInflight = ctl;
 			suggestBusy = true;
 			try {
-				const r = await searchResources(q, { recursive: true, limit: 9, signal: ctl.signal });
+				// Suggestions honor the active filter presets, mirroring what
+				// "See all results" will show on /search.
+				const r = await searchResources(q, {
+					...filterToSearchOptions(resourceFilters),
+					limit: 9,
+					signal: ctl.signal
+				});
 				if (seq !== suggestSeq) return; // superseded while awaiting
 				// The wire is ordered — folders first, then files — but slice
 				// per kind explicitly so the header preview stays a folder-heavy
@@ -491,6 +528,22 @@
 		langOpen = false;
 	}
 
+	/**
+	 * Window-level click: the existing close-outside-click for the menus,
+	 * plus the same treatment for the top-bar filter panel. Anything inside
+	 * the search container — the input, the toggle, the panel itself — keeps
+	 * the panel open (same `closest` guard as DisplayModeControls).
+	 */
+	function onGlobalClick(e: MouseEvent) {
+		closeMenus();
+		if (
+			filterPanelOpen &&
+			!(e.target instanceof Element && e.target.closest('.search-container'))
+		) {
+			filterPanelOpen = false;
+		}
+	}
+
 	/**
 	 * True when the shortcut target is a text-input surface — <input>,
 	 * <textarea>, or any `contenteditable` element. Used by the
@@ -563,7 +616,7 @@
 </script>
 
 <svelte:window
-	onclick={closeMenus}
+	onclick={onGlobalClick}
 	onkeydown={(e) => {
 		// First Cmd/Ctrl+K loads the palette and mounts it open; once mounted,
 		// the palette's own handler takes over toggling/closing.
@@ -597,7 +650,8 @@
 		}
 		if (e.key !== 'Escape') return;
 		if (aboutOpen) aboutOpen = false;
-		else if (searchActive) closeMobileSearch();
+		else if (filterPanelOpen) filterPanelOpen = false;
+		else if (mobileSearchOpen) closeMobileSearch();
 		else closeMenus();
 	}}
 />
@@ -702,7 +756,7 @@
 </div>
 
 <div class="main-content">
-	<div class="top-bar" class:top-bar--search-active={searchActive}>
+	<div class="top-bar" class:top-bar--search-active={mobileSearchOpen}>
 		<button
 			class="sidebar-toggle"
 			aria-label={t('nav.toggle', 'Toggle navigation menu')}
@@ -760,6 +814,24 @@
 						<Icon name="times" />
 					</button>
 				{/if}
+				<!-- Filter toggle sits inside the input's right edge (between the
+				     clear × and the submit button) and opens the shared filter
+				     panel — the same state the files page's filter bar edits. -->
+				<button
+					class="search-filter-btn"
+					class:search-filter-btn--active={filterPanelOpen || filterActiveCount > 0}
+					type="button"
+					aria-expanded={filterPanelOpen}
+					title={t('filter.advanced', 'Filters')}
+					aria-label={t('filter.advanced', 'Filters')}
+					data-testid="appshell-filter-toggle-btn"
+					onclick={toggleFilterPanel}
+				>
+					<Icon name="sliders-h" />
+					{#if filterActiveCount > 0}
+						<span class="search-filter-btn__badge">{filterActiveCount}</span>
+					{/if}
+				</button>
 				<button
 					class="search-button"
 					type="submit"
@@ -770,6 +842,10 @@
 					<Icon name="search" />
 				</button>
 
+				{#if filterPanelOpen}
+					<TopBarFilterPanel value={resourceFilters} onclose={() => (filterPanelOpen = false)} />
+				{/if}
+
 				{#if suggestOpen}
 					<ul class="suggest">
 						{#each suggestions as s (s.kind + s.item.id)}
@@ -1223,7 +1299,7 @@
 	/* Clear (×) button sits left of the submit button inside the search field. */
 	.search-clear {
 		position: absolute;
-		right: 44px;
+		right: 72px;
 		display: grid;
 		place-items: center;
 		width: 28px;
@@ -1240,6 +1316,47 @@
 		color: var(--color-text);
 	}
 
+	/* Filter toggle inside the input's right edge: submit button at 6px,
+	   clear × at 72px, this one between them at 44px. The badge counts the
+	   active presets, mirroring the files page's filter-bar toggle. */
+	.search-filter-btn {
+		position: absolute;
+		right: 44px;
+		display: grid;
+		place-items: center;
+		width: 28px;
+		height: 28px;
+		border: none;
+		border-radius: 50%;
+		background: none;
+		color: var(--color-text-muted);
+		cursor: pointer;
+	}
+
+	.search-filter-btn:hover {
+		background: var(--color-bg-hover);
+		color: var(--color-text);
+	}
+
+	.search-filter-btn--active {
+		color: var(--color-accent);
+	}
+
+	.search-filter-btn__badge {
+		position: absolute;
+		top: -2px;
+		right: -3px;
+		min-width: 13px;
+		height: 13px;
+		padding: 0 2px;
+		border-radius: var(--radius-sm);
+		background: var(--color-accent);
+		color: var(--color-on-accent);
+		font-size: 9px;
+		line-height: 13px;
+		text-align: center;
+	}
+
 	.suggest {
 		position: absolute;
 		top: calc(100% + 4px);
diff --git a/frontend/src/lib/components/AppShell.test.ts b/frontend/src/lib/components/AppShell.test.ts
index 04089694..149d90cb 100644
--- a/frontend/src/lib/components/AppShell.test.ts
+++ b/frontend/src/lib/components/AppShell.test.ts
@@ -88,3 +88,49 @@ it('submits a search and routes to /search', async () => {
 	await fireEvent.click(screen.getByTestId('appshell-search-submit-btn'));
 	await waitFor(() => expect(goto).toHaveBeenCalledWith('/search?q=report'));
 });
+
+it('opens the filter panel, and its presets ride along on submit', async () => {
+	render(AppShell, { props: { children } });
+	// Panel opens from the toggle inside the search input…
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	expect(screen.getByTestId('appshell-filter-panel')).toBeTruthy();
+	// …and picking a preset lights the toggle's badge (shared store).
+	await fireEvent.change(screen.getByTestId('filter-type-select'), {
+		target: { value: 'image' }
+	});
+	expect(screen.getByTestId('appshell-filter-toggle-btn').textContent).toContain('1');
+	// Submitting carries the preset into the search URL.
+	const input = screen.getByTestId('appshell-search-input');
+	await fireEvent.input(input, { target: { value: 'report' } });
+	await fireEvent.click(screen.getByTestId('appshell-search-submit-btn'));
+	await waitFor(() => expect(goto).toHaveBeenCalledWith('/search?q=report&type=image'));
+	// Submit closes the panel; reopen it and "Clear filters" resets the
+	// presets — the badge drops and the next submit is param-free.
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	await fireEvent.click(screen.getByTestId('appshell-filter-clear-btn'));
+	expect(screen.getByTestId('appshell-filter-toggle-btn').textContent!.includes('1')).toBe(false);
+	await fireEvent.input(input, { target: { value: 'again' } });
+	await fireEvent.click(screen.getByTestId('appshell-search-submit-btn'));
+	await waitFor(() => expect(goto).toHaveBeenCalledWith('/search?q=again'));
+	// Leave the shared store clean for the other tests in this file.
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	await fireEvent.click(screen.getByTestId('appshell-filter-clear-btn'));
+});
+
+it('closes the filter panel on Escape and on outside click', async () => {
+	render(AppShell, { props: { children } });
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	expect(screen.getByTestId('appshell-filter-panel')).toBeTruthy();
+	await fireEvent.click(screen.getByTestId('appshell-filter-done-btn'));
+	expect(screen.queryByTestId('appshell-filter-panel')).toBeNull();
+	// Outside click (window-level handler) reopens-then-closes too.
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	expect(screen.getByTestId('appshell-filter-panel')).toBeTruthy();
+	await fireEvent.click(screen.getByTestId('shell-child'));
+	expect(screen.queryByTestId('appshell-filter-panel')).toBeNull();
+	// Escape closes it as well.
+	await fireEvent.click(screen.getByTestId('appshell-filter-toggle-btn'));
+	expect(screen.getByTestId('appshell-filter-panel')).toBeTruthy();
+	await fireEvent.keyDown(window, { key: 'Escape' });
+	expect(screen.queryByTestId('appshell-filter-panel')).toBeNull();
+});
diff --git a/frontend/src/lib/components/FilterChips.svelte b/frontend/src/lib/components/FilterChips.svelte
new file mode 100644
index 00000000..983dec0e
--- /dev/null
+++ b/frontend/src/lib/components/FilterChips.svelte
@@ -0,0 +1,130 @@
+<!--
+  The active filter presets as dismissible chips, for surfaces whose filter
+  editing lives elsewhere (the top bar's panel) — /search after its in-page
+  selects were retired. Without these the page would show filtered results
+  with no visible way to see or undo why.
+
+  `value` is the shared state proxy, mutated in place — deliberately a plain
+  prop, not `$bindable`: there is exactly one state object (the store) and
+  nobody reassigns it, so a two-way binding contract would be noise.
+-->
+<script lang="ts">
+	import Icon from '$lib/icons/Icon.svelte';
+	import { t } from '$lib/i18n/index.svelte';
+	import {
+		activeFilters,
+		clearFilterDimension,
+		filterDimensionLabelKey,
+		filterValueLabelKey,
+		type ResourceFilterState
+	} from '$lib/utils/searchFilters';
+
+	interface Props {
+		value: ResourceFilterState;
+	}
+
+	let { value }: Props = $props();
+
+	const chips = $derived(activeFilters(value));
+
+	function clearAll() {
+		for (const { key } of activeFilters(value)) clearFilterDimension(value, key);
+		// A lingering recursive=0 would survive a "clear everything" otherwise.
+		value.recursive = true;
+	}
+</script>
+
+{#if chips.length > 0}
+	<div
+		class="fchips"
+		data-testid="filter-chips"
+		role="list"
+		aria-label={t('filter.advanced', 'Filters')}
+	>
+		{#each chips as chip (chip.key)}
+			<span class="fchips__chip" role="listitem" data-testid={`filter-chip-${chip.key}`}>
+				<span class="fchips__dim">{t(filterDimensionLabelKey(chip.key), chip.key)}</span>
+				<span class="fchips__val">{t(filterValueLabelKey(chip.key, chip.value), chip.value)}</span>
+				<button
+					class="fchips__dismiss"
+					type="button"
+					aria-label={t('common.clear', 'Clear')}
+					data-testid={`filter-chip-${chip.key}-dismiss-btn`}
+					onclick={() => clearFilterDimension(value, chip.key)}
+				>
+					<Icon name="times" />
+				</button>
+			</span>
+		{/each}
+		<button
+			class="fchips__clear-all"
+			type="button"
+			data-testid="filter-clear-all-btn"
+			onclick={clearAll}
+		>
+			{t('search.clear_filters', 'Clear filters')}
+		</button>
+	</div>
+{/if}
+
+<style>
+	.fchips {
+		display: flex;
+		flex-wrap: wrap;
+		align-items: center;
+		gap: var(--space-1);
+	}
+
+	.fchips__chip {
+		display: inline-flex;
+		align-items: center;
+		gap: 0.35rem;
+		padding: 0.15rem 0.3rem 0.15rem 0.55rem;
+		border: 1px solid var(--color-border);
+		border-radius: var(--radius-2xl, 999px);
+		background: var(--color-bg-surface);
+		font-size: var(--text-sm);
+	}
+
+	.fchips__dim {
+		color: var(--color-text-secondary);
+	}
+
+	.fchips__val {
+		color: var(--color-text);
+		font-weight: 500;
+	}
+
+	.fchips__dismiss {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		width: 1.2rem;
+		height: 1.2rem;
+		padding: 0;
+		border: none;
+		border-radius: var(--radius-sm);
+		background: none;
+		color: var(--color-text-secondary);
+		cursor: pointer;
+	}
+
+	.fchips__dismiss:hover {
+		background: var(--color-bg-hover);
+		color: var(--color-text);
+	}
+
+	.fchips__clear-all {
+		padding: 0.15rem 0.5rem;
+		border: none;
+		border-radius: var(--radius-sm);
+		background: none;
+		color: var(--color-accent);
+		font-size: var(--text-sm);
+		cursor: pointer;
+	}
+
+	.fchips__clear-all:hover {
+		text-decoration: underline;
+	}
+</style>
diff --git a/frontend/src/lib/components/FilterFields.svelte b/frontend/src/lib/components/FilterFields.svelte
new file mode 100644
index 00000000..09084548
--- /dev/null
+++ b/frontend/src/lib/components/FilterFields.svelte
@@ -0,0 +1,178 @@
+<!--
+  The filter dimensions themselves (type / size / modified / created / kind /
+  recursive), bound to the shared `ResourceFilterState`.
+
+  Extracted so the files page's filter bar and the top bar's filter panel
+  render the same fields off the same vocabulary — the option lists used to
+  live in two copies (SearchFilterBar and the /search page). The vocabularies
+  (extensions, byte bounds, date presets) stay in `$lib/utils/searchFilters`;
+  only the i18n labels live here.
+-->
+<script lang="ts">
+	import { t } from '$lib/i18n/index.svelte';
+	import {
+		type DateKey,
+		type KindKey,
+		type ResourceFilterState,
+		type SizeKey,
+		type TypeKey
+	} from '$lib/utils/searchFilters';
+
+	interface Props {
+		/** Bindable filter state — the caller owns it (usually the shared store). */
+		value: ResourceFilterState;
+		/** `inline` wraps in a row (files page); `panel` uses a grid (top bar). */
+		layout?: 'inline' | 'panel';
+		/** Hide the recursive toggle (a surface where scope is owned elsewhere). */
+		hideRecursive?: boolean;
+	}
+
+	let { value = $bindable(), layout = 'inline', hideRecursive = false }: Props = $props();
+
+	const TYPES: { v: TypeKey; l: string }[] = [
+		{ v: 'all', l: t('search.type.all', 'All types') },
+		{ v: 'image', l: t('search.type.image', 'Images') },
+		{ v: 'video', l: t('search.type.video', 'Videos') },
+		{ v: 'document', l: t('search.type.document', 'Documents') },
+		{ v: 'audio', l: t('search.type.audio', 'Audio') },
+		{ v: 'archive', l: t('search.type.archive', 'Archives') }
+	];
+	const SIZES: { v: SizeKey; l: string }[] = [
+		{ v: 'all', l: t('search.size.all', 'Any size') },
+		{ v: 'small', l: t('search.size.small', '< 1 MB') },
+		{ v: 'medium', l: t('search.size.medium', '1–100 MB') },
+		{ v: 'large', l: t('search.size.large', '> 100 MB') }
+	];
+	const DATES: { v: DateKey; l: string }[] = [
+		{ v: 'all', l: t('search.date.all', 'Any time') },
+		{ v: 'day', l: t('search.date.day', 'Past 24 hours') },
+		{ v: 'week', l: t('search.date.week', 'Past week') },
+		{ v: 'month', l: t('search.date.month', 'Past month') },
+		{ v: 'year', l: t('search.date.year', 'Past year') }
+	];
+	const KINDS: { v: KindKey; l: string }[] = [
+		{ v: 'all', l: t('filter.kind.all', 'Files and folders') },
+		{ v: 'file', l: t('filter.kind.file', 'Files only') },
+		{ v: 'folder', l: t('filter.kind.folder', 'Folders only') }
+	];
+</script>
+
+<div
+	class="filter-fields"
+	class:filter-fields--panel={layout === 'panel'}
+	data-testid="filter-fields"
+>
+	<label class="filter-fields__field">
+		<span class="filter-fields__label">{t('search.type_label', 'Type')}</span>
+		<select data-testid="filter-type-select" bind:value={value.type}>
+			{#each TYPES as opt (opt.v)}
+				<option value={opt.v}>{opt.l}</option>
+			{/each}
+		</select>
+	</label>
+
+	<label class="filter-fields__field">
+		<span class="filter-fields__label">{t('filter.kind_label', 'Items')}</span>
+		<select data-testid="filter-kind-select" bind:value={value.kind}>
+			{#each KINDS as opt (opt.v)}
+				<option value={opt.v}>{opt.l}</option>
+			{/each}
+		</select>
+	</label>
+
+	<label class="filter-fields__field">
+		<span class="filter-fields__label">{t('search.size_label', 'Size')}</span>
+		<select data-testid="filter-size-select" bind:value={value.size}>
+			{#each SIZES as opt (opt.v)}
+				<option value={opt.v}>{opt.l}</option>
+			{/each}
+		</select>
+	</label>
+
+	<label class="filter-fields__field">
+		<span class="filter-fields__label">{t('filter.modified_label', 'Modified')}</span>
+		<select data-testid="filter-date-select" bind:value={value.date}>
+			{#each DATES as opt (opt.v)}
+				<option value={opt.v}>{opt.l}</option>
+			{/each}
+		</select>
+	</label>
+
+	<label class="filter-fields__field">
+		<span class="filter-fields__label">{t('filter.created_label', 'Created')}</span>
+		<select data-testid="filter-created-select" bind:value={value.created}>
+			{#each DATES as opt (opt.v)}
+				<option value={opt.v}>{opt.l}</option>
+			{/each}
+		</select>
+	</label>
+
+	{#if !hideRecursive}
+		<label class="filter-fields__check">
+			<input
+				type="checkbox"
+				data-testid="filter-recursive-checkbox"
+				bind:checked={value.recursive}
+			/>
+			<span>{t('filter.recursive', 'Include subfolders')}</span>
+		</label>
+	{/if}
+</div>
+
+<style>
+	.filter-fields {
+		display: flex;
+		flex-wrap: wrap;
+		align-items: center;
+		gap: var(--space-2);
+	}
+
+	/* Panel shape: two even columns, so five selects plus the toggle do not
+	   run off the width of the top bar's search slot. */
+	.filter-fields--panel {
+		display: grid;
+		grid-template-columns: repeat(2, minmax(0, 1fr));
+		gap: var(--space-2);
+	}
+
+	.filter-fields__field {
+		display: flex;
+		align-items: center;
+		gap: 0.4rem;
+		min-width: 0;
+	}
+
+	.filter-fields__label {
+		color: var(--color-text-secondary);
+		font-size: var(--text-sm);
+		white-space: nowrap;
+	}
+
+	.filter-fields__field select {
+		flex: 1;
+		min-width: 0;
+		padding: 0.3rem 0.4rem;
+		border: 1px solid var(--color-border);
+		border-radius: var(--radius-sm);
+		background: var(--color-bg-surface);
+		color: var(--color-text);
+		font-size: var(--text-sm);
+		max-width: 9rem;
+	}
+
+	.filter-fields__check {
+		display: flex;
+		align-items: center;
+		gap: 0.4rem;
+		color: var(--color-text);
+		font-size: var(--text-sm);
+		cursor: pointer;
+		white-space: nowrap;
+	}
+
+	@media (width <= 768px) {
+		.filter-fields--panel {
+			grid-template-columns: minmax(0, 1fr);
+		}
+	}
+</style>
diff --git a/frontend/src/lib/components/SearchFilterBar.svelte b/frontend/src/lib/components/SearchFilterBar.svelte
index c3f6fb2d..bad5d44c 100644
--- a/frontend/src/lib/components/SearchFilterBar.svelte
+++ b/frontend/src/lib/components/SearchFilterBar.svelte
@@ -1,18 +1,22 @@
 <script lang="ts">
+	import FilterFields from '$lib/components/FilterFields.svelte';
 	import Icon from '$lib/icons/Icon.svelte';
 	import { t } from '$lib/i18n/index.svelte';
 	import {
+		activeFilterCount,
 		defaultFilterState,
-		type DateKey,
-		type ResourceFilterState,
-		type SizeKey,
-		type TypeKey
+		type ResourceFilterState
 	} from '$lib/utils/searchFilters';
 
 	interface Props {
-		/** Bindable full filter state (keyword + toggles + presets). */
+		/**
+		 * Full filter state (keyword + toggles + presets), mutated in place —
+		 * in practice the shared store proxy from `$lib/stores/filter.svelte`.
+		 * Deliberately NOT `$bindable`: there is exactly one state object and
+		 * nobody reassigns it, so a two-way binding contract would be noise.
+		 */
 		value?: ResourceFilterState;
-		/** Advanced section (type/size/date/recursive) expanded. */
+		/** Advanced section (presets + recursive) expanded. */
 		expanded?: boolean;
 		placeholder?: string;
 		/** Debounce for the keyword input (ms). */
@@ -22,44 +26,22 @@
 	}
 
 	let {
-		value = $bindable(defaultFilterState()),
+		value = defaultFilterState(),
 		expanded = $bindable(false),
 		placeholder = t('filter.placeholder', 'Search this folder and subfolders…'),
 		debounceMs = 300,
 		hideRecursive = false
 	}: Props = $props();
 
-	// Option label lists reuse the /search page's i18n keys — the vocabularies
-	// themselves (extensions, byte bounds) live in the shared searchFilters util.
-	const TYPES: { v: TypeKey; l: string }[] = [
-		{ v: 'all', l: t('search.type.all', 'All types') },
-		{ v: 'image', l: t('search.type.image', 'Images') },
-		{ v: 'video', l: t('search.type.video', 'Videos') },
-		{ v: 'document', l: t('search.type.document', 'Documents') },
-		{ v: 'audio', l: t('search.type.audio', 'Audio') },
-		{ v: 'archive', l: t('search.type.archive', 'Archives') }
-	];
-	const SIZES: { v: SizeKey; l: string }[] = [
-		{ v: 'all', l: t('search.size.all', 'Any size') },
-		{ v: 'small', l: t('search.size.small', '< 1 MB') },
-		{ v: 'medium', l: t('search.size.medium', '1–100 MB') },
-		{ v: 'large', l: t('search.size.large', '> 100 MB') }
-	];
-	const DATES: { v: DateKey; l: string }[] = [
-		{ v: 'all', l: t('search.date.all', 'Any time') },
-		{ v: 'day', l: t('search.date.day', 'Past 24 hours') },
-		{ v: 'week', l: t('search.date.week', 'Past week') },
-		{ v: 'month', l: t('search.date.month', 'Past month') },
-		{ v: 'year', l: t('search.date.year', 'Past year') }
-	];
-
 	// Keyword buffer: typing updates the buffer immediately (responsive input)
 	// and pushes into `value.query` debounced, so a keystroke doesn't fire a
 	// backend search per character. `lastPushed` disambiguates our own pushes
-	// from external writes (e.g. the page's clear-filter Escape path), which
-	// flow back into the buffer via the sync effect below.
-	let keyword = $state(value.query);
-	let lastPushed = value.query;
+	// from external writes (e.g. the page's clear-filter Escape path, or a
+	// URL hydration of a deep link like /files/…?q=abc), which flow back into
+	// the buffer via the sync effect below — including on first mount, which
+	// is why both start empty instead of capturing `value.query` here.
+	let keyword = $state('');
+	let lastPushed = '';
 	let timer: ReturnType<typeof setTimeout> | null = null;
 
 	$effect(() => {
@@ -119,9 +101,7 @@
 		pushKeyword('');
 	}
 
-	const activeCount = $derived(
-		(value.type !== 'all' ? 1 : 0) + (value.size !== 'all' ? 1 : 0) + (value.date !== 'all' ? 1 : 0)
-	);
+	const activeCount = $derived(activeFilterCount(value));
 </script>
 
 <div class="sfb" data-testid="search-filter-bar">
@@ -168,37 +148,8 @@
 	</div>
 
 	{#if expanded}
-		<div class="sfb__advanced" data-testid="filter-advanced-row">
-			<label class="sfb__field">
-				<span class="sfb__label">{t('search.type_label', 'Type')}</span>
-				<select bind:value={value.type}>
-					{#each TYPES as opt (opt.v)}
-						<option value={opt.v}>{opt.l}</option>
-					{/each}
-				</select>
-			</label>
-			<label class="sfb__field">
-				<span class="sfb__label">{t('search.size_label', 'Size')}</span>
-				<select bind:value={value.size}>
-					{#each SIZES as opt (opt.v)}
-						<option value={opt.v}>{opt.l}</option>
-					{/each}
-				</select>
-			</label>
-			<label class="sfb__field">
-				<span class="sfb__label">{t('search.date_label', 'Date')}</span>
-				<select bind:value={value.date}>
-					{#each DATES as opt (opt.v)}
-						<option value={opt.v}>{opt.l}</option>
-					{/each}
-				</select>
-			</label>
-			{#if !hideRecursive}
-				<label class="sfb__check">
-					<input type="checkbox" bind:checked={value.recursive} />
-					<span>{t('filter.recursive', 'Include subfolders')}</span>
-				</label>
-			{/if}
+		<div data-testid="filter-advanced-row">
+			<FilterFields bind:value {hideRecursive} />
 		</div>
 	{/if}
 </div>
@@ -312,43 +263,4 @@
 		line-height: 1rem;
 		text-align: center;
 	}
-
-	.sfb__advanced {
-		display: flex;
-		flex-wrap: wrap;
-		align-items: center;
-		gap: var(--space-2);
-	}
-
-	.sfb__field {
-		display: flex;
-		align-items: center;
-		gap: 0.4rem;
-	}
-
-	.sfb__label {
-		color: var(--color-text-secondary);
-		font-size: var(--text-sm);
-		white-space: nowrap;
-	}
-
-	.sfb__field select {
-		padding: 0.3rem 0.4rem;
-		border: 1px solid var(--color-border);
-		border-radius: var(--radius-sm);
-		background: var(--color-bg-surface);
-		color: var(--color-text);
-		font-size: var(--text-sm);
-		max-width: 9rem;
-	}
-
-	.sfb__check {
-		display: flex;
-		align-items: center;
-		gap: 0.4rem;
-		color: var(--color-text);
-		font-size: var(--text-sm);
-		cursor: pointer;
-		white-space: nowrap;
-	}
 </style>
diff --git a/frontend/src/lib/components/TopBarFilterPanel.svelte b/frontend/src/lib/components/TopBarFilterPanel.svelte
new file mode 100644
index 00000000..62aef490
--- /dev/null
+++ b/frontend/src/lib/components/TopBarFilterPanel.svelte
@@ -0,0 +1,122 @@
+<!--
+  The top bar's filter dropdown — the panel that opens from the button inside
+  the search input. A shell around the shared `FilterFields` plus a
+  clear-presets footer; positioning assumes it is rendered inside
+  `.search-container` (position: relative), same stacking trick as the
+  suggestions list.
+
+  Mutates the shared state proxy in place — plain prop, not `$bindable` (see
+  FilterChips for the rationale).
+-->
+<script lang="ts">
+	import FilterFields from '$lib/components/FilterFields.svelte';
+	import Icon from '$lib/icons/Icon.svelte';
+	import { t } from '$lib/i18n/index.svelte';
+	import { activeFilterCount, type ResourceFilterState } from '$lib/utils/searchFilters';
+
+	interface Props {
+		value: ResourceFilterState;
+		/** Dismisses the panel (the clear button keeps it open on the files page). */
+		onclose: () => void;
+	}
+
+	let { value, onclose }: Props = $props();
+
+	const activeCount = $derived(activeFilterCount(value));
+
+	function clearPresets() {
+		for (const dim of ['type', 'size', 'date', 'created', 'kind'] as const) {
+			value[dim] = 'all';
+		}
+		value.recursive = true;
+	}
+</script>
+
+<div
+	class="tfp"
+	data-testid="appshell-filter-panel"
+	role="group"
+	aria-label={t('filter.advanced', 'Filters')}
+>
+	<FilterFields layout="panel" {value} />
+	<div class="tfp__footer">
+		<button
+			class="tfp__clear"
+			type="button"
+			data-testid="appshell-filter-clear-btn"
+			disabled={activeCount === 0 && value.recursive}
+			onclick={clearPresets}
+		>
+			<Icon name="times" />
+			{t('search.clear_filters', 'Clear filters')}
+		</button>
+		<button
+			class="tfp__done"
+			type="button"
+			data-testid="appshell-filter-done-btn"
+			onclick={onclose}
+		>
+			{t('common.done', 'Done')}
+		</button>
+	</div>
+</div>
+
+<style>
+	.tfp {
+		position: absolute;
+		top: calc(100% + 4px);
+		left: 0;
+		right: 0;
+		z-index: var(--z-dropdown);
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-2);
+		padding: var(--space-3);
+		border: 1px solid var(--color-border);
+		border-radius: var(--radius-lg, var(--radius-md));
+		background: var(--color-bg-surface);
+		box-shadow: var(--shadow-lg, 0 10px 30px var(--color-overlay-shadow));
+	}
+
+	.tfp__footer {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		gap: var(--space-2);
+	}
+
+	.tfp__clear,
+	.tfp__done {
+		display: inline-flex;
+		align-items: center;
+		gap: 0.35rem;
+		padding: 0.3rem 0.6rem;
+		border: none;
+		border-radius: var(--radius-sm);
+		background: none;
+		font-size: var(--text-sm);
+		cursor: pointer;
+	}
+
+	.tfp__clear {
+		color: var(--color-accent);
+	}
+
+	.tfp__clear:disabled {
+		color: var(--color-text-secondary);
+		cursor: default;
+	}
+
+	.tfp__clear:not(:disabled):hover {
+		background: var(--color-bg-hover);
+	}
+
+	.tfp__done {
+		background: var(--color-accent);
+		color: var(--color-on-accent);
+	}
+
+	.tfp__done:hover {
+		filter: brightness(1.05);
+	}
+</style>
diff --git a/frontend/src/lib/composables/useFilterUrlSync.svelte.ts b/frontend/src/lib/composables/useFilterUrlSync.svelte.ts
new file mode 100644
index 00000000..a8f2e90a
--- /dev/null
+++ b/frontend/src/lib/composables/useFilterUrlSync.svelte.ts
@@ -0,0 +1,60 @@
+/**
+ * Two-way sync between the shared filter store and the current page's URL.
+ *
+ * The store is the single source of truth; the URL is its projection. One
+ * `$effect` serves both directions, disambiguated by tracking the last URL
+ * search string we processed:
+ *
+ * - URL changed (navigation, Back/Forward, a shared link) → the store adopts
+ *   the URL's filter params via `hydrateFilters`.
+ * - Store changed (a select moved, keyword debounced in) → the new state is
+ *   written back with `goto(..., { replaceState: true })` so refresh,
+ *   bookmarks and Back all see it — without adding a history entry per edit.
+ *
+ * Convergence: after a write, `page.url` catches up to what we wrote, the
+ * `lastSeenSearch` guard recognizes it as our own echo and the store is left
+ * alone — the loop settles in one round-trip instead of ping-ponging.
+ *
+ * `includeQuery` decides who owns `?q=`: true on the files page (the filter
+ * bar's keyword belongs in the URL there), false on /search (the top-bar
+ * search box writes `?q=` itself; a second writer would fight it).
+ */
+import { goto } from '$app/navigation';
+import { page } from '$app/state';
+import { untrack } from 'svelte';
+import { hydrateFilters, resourceFilters } from '$lib/stores/filter.svelte';
+import { filterSearchOver, filtersFromParams } from '$lib/utils/searchFilters';
+
+export function useFilterUrlSync(includeQuery: boolean): void {
+	let lastSeenSearch: string | null = null;
+
+	$effect(() => {
+		const current = page.url;
+
+		if (current.search !== lastSeenSearch) {
+			// External URL change → URL wins. `untrack` because `hydrateFilters`
+			// mutates the store we read below; the mutation schedules this
+			// effect's next run, where `lastSeenSearch` already matches and the
+			// adoption is skipped.
+			lastSeenSearch = current.search;
+			untrack(() => hydrateFilters(filtersFromParams(current.searchParams)));
+		}
+
+		// Store → URL: overwrite only the filter params so the surface's own
+		// params (`?file=`, `in`, `scope`) survive untouched. The desired
+		// search string is composed in `searchFilters` — a throwaway `new URL`
+		// copy here would trip svelte/prefer-svelte-reactivity.
+		const desired = filterSearchOver(current.searchParams, resourceFilters, includeQuery);
+		if (desired !== current.search) {
+			lastSeenSearch = desired;
+			// Same-origin path/search/hash built from page.url; resolve() only
+			// accepts a route string, so it can't type a dynamic URL.
+			// eslint-disable-next-line svelte/no-navigation-without-resolve
+			void goto(`${current.pathname}${desired}${current.hash}`, {
+				replaceState: true,
+				noScroll: true,
+				keepFocus: true
+			});
+		}
+	});
+}
diff --git a/frontend/src/lib/stores/filter.svelte.ts b/frontend/src/lib/stores/filter.svelte.ts
new file mode 100644
index 00000000..59e88236
--- /dev/null
+++ b/frontend/src/lib/stores/filter.svelte.ts
@@ -0,0 +1,36 @@
+/**
+ * Shared resource-filter state for the search-backed surfaces.
+ *
+ * One module-level `$state` object is THE filter state: the files page's
+ * `SearchFilterBar`, the top bar's filter panel, and the /search chips all
+ * read and mutate this same proxy, and each surface projects it into its URL
+ * (see `useFilterUrlSync`). Exported as a `const` — callers mutate fields,
+ * never reassign, which is also what keeps every holder looking at the same
+ * proxy.
+ */
+import {
+	clearFilterState,
+	defaultFilterState,
+	type ResourceFilterState
+} from '$lib/utils/searchFilters';
+
+export const resourceFilters: ResourceFilterState = $state(defaultFilterState());
+
+/**
+ * Adopt `next` field-by-field (never reassign — the proxy identity is the
+ * contract every surface binds to).
+ */
+export function hydrateFilters(next: ResourceFilterState): void {
+	resourceFilters.query = next.query;
+	resourceFilters.recursive = next.recursive;
+	resourceFilters.type = next.type;
+	resourceFilters.size = next.size;
+	resourceFilters.date = next.date;
+	resourceFilters.created = next.created;
+	resourceFilters.kind = next.kind;
+}
+
+/** Reset every dimension (keyword included) in place. */
+export function resetFilters(): void {
+	clearFilterState(resourceFilters);
+}
diff --git a/frontend/src/lib/styles/ported/topbar.css b/frontend/src/lib/styles/ported/topbar.css
index f05391da..c1a888d5 100644
--- a/frontend/src/lib/styles/ported/topbar.css
+++ b/frontend/src/lib/styles/ported/topbar.css
@@ -112,7 +112,9 @@
 
 .search-container input {
     width: 100%;
-    padding: var(--space-3) 50px var(--space-3) var(--space-11);
+    /* Right padding reserves the three in-field controls: submit (6px),
+       filter toggle (44px), clear × (72px). */
+    padding: var(--space-3) 104px var(--space-3) var(--space-11);
     border-radius: var(--radius-2xl);
     border: 2px solid var(--color-border);
     background-color: var(--color-bg-input);
diff --git a/frontend/src/lib/utils/searchFilters.test.ts b/frontend/src/lib/utils/searchFilters.test.ts
index 82f70dca..ad9c92dc 100644
--- a/frontend/src/lib/utils/searchFilters.test.ts
+++ b/frontend/src/lib/utils/searchFilters.test.ts
@@ -1,9 +1,18 @@
 import { describe, expect, it } from 'vitest';
 import {
+	activeFilterCount,
+	activeFilters,
+	applyFilterParams,
+	clearFilterDimension,
 	clearFilterState,
 	dateBound,
 	defaultFilterState,
+	filterParamEntries,
+	filterParamsToString,
+	filterSearchOver,
+	filtersFromParams,
 	filterToSearchOptions,
+	filterValueLabelKey,
 	isFilterActive,
 	sizeBounds,
 	TYPE_EXT
@@ -58,6 +67,8 @@ describe('isFilterActive', () => {
 		expect(isFilterActive({ ...defaultFilterState(), type: 'image' })).toBe(true);
 		expect(isFilterActive({ ...defaultFilterState(), size: 'small' })).toBe(true);
 		expect(isFilterActive({ ...defaultFilterState(), date: 'week' })).toBe(true);
+		expect(isFilterActive({ ...defaultFilterState(), created: 'week' })).toBe(true);
+		expect(isFilterActive({ ...defaultFilterState(), kind: 'folder' })).toBe(true);
 	});
 
 	it('ignores the recursive toggle', () => {
@@ -65,6 +76,51 @@ describe('isFilterActive', () => {
 	});
 });
 
+describe('activeFilters', () => {
+	it('is empty for the default state', () => {
+		expect(activeFilters(defaultFilterState())).toEqual([]);
+		expect(activeFilterCount(defaultFilterState())).toBe(0);
+	});
+
+	it('lists live dimensions in URL-key order', () => {
+		const f = {
+			...defaultFilterState(),
+			kind: 'file' as const,
+			type: 'image' as const,
+			date: 'week' as const
+		};
+		expect(activeFilters(f)).toEqual([
+			{ key: 'type', value: 'image' },
+			{ key: 'date', value: 'week' },
+			{ key: 'kind', value: 'file' }
+		]);
+		expect(activeFilterCount(f)).toBe(3);
+	});
+
+	it('does not count the keyword', () => {
+		expect(activeFilterCount({ ...defaultFilterState(), query: 'report' })).toBe(0);
+	});
+});
+
+describe('clearFilterDimension', () => {
+	it('resets only the named dimension', () => {
+		const f = { ...defaultFilterState(), type: 'image' as const, kind: 'folder' as const };
+		clearFilterDimension(f, 'kind');
+		expect(f.kind).toBe('all');
+		expect(f.type).toBe('image');
+	});
+});
+
+describe('filterValueLabelKey', () => {
+	it('names each dimension from its own i18n family', () => {
+		expect(filterValueLabelKey('type', 'image')).toBe('search.type.image');
+		expect(filterValueLabelKey('size', 'large')).toBe('search.size.large');
+		expect(filterValueLabelKey('date', 'week')).toBe('search.date.week');
+		expect(filterValueLabelKey('created', 'week')).toBe('search.date.week');
+		expect(filterValueLabelKey('kind', 'folder')).toBe('filter.kind.folder');
+	});
+});
+
 describe('clearFilterState', () => {
 	it('resets every field in place', () => {
 		const f = { ...defaultFilterState(), query: 'a', recursive: false, type: 'video' as const };
@@ -80,6 +136,8 @@ describe('filterToSearchOptions', () => {
 			minSize: undefined,
 			maxSize: undefined,
 			modifiedAfter: undefined,
+			createdAfter: undefined,
+			resourceTypes: undefined,
 			recursive: true
 		});
 	});
@@ -90,12 +148,150 @@ describe('filterToSearchOptions', () => {
 			recursive: false,
 			type: 'archive',
 			size: 'medium',
-			date: 'month'
+			date: 'month',
+			created: 'day',
+			kind: 'folder'
 		});
 		expect(opts.fileTypes).toEqual(TYPE_EXT.archive);
 		expect(opts.minSize).toBe(MB);
 		expect(opts.maxSize).toBe(100 * MB);
 		expect(opts.modifiedAfter).toBe(dateBound('month'));
+		expect(opts.createdAfter).toBe(dateBound('day'));
+		expect(opts.resourceTypes).toEqual(['folder']);
 		expect(opts.recursive).toBe(false);
 	});
 });
+
+describe('filtersFromParams', () => {
+	it('returns the defaults for an empty query string', () => {
+		expect(filtersFromParams(new URLSearchParams(''))).toEqual(defaultFilterState());
+	});
+
+	it('reads every dimension', () => {
+		const f = filtersFromParams(
+			new URLSearchParams('q=report&type=image&size=large&date=week&created=day&kind=folder')
+		);
+		expect(f).toEqual({
+			query: 'report',
+			recursive: true,
+			type: 'image',
+			size: 'large',
+			date: 'week',
+			created: 'day',
+			kind: 'folder'
+		});
+	});
+
+	it('falls back to the default for unknown values instead of erroring', () => {
+		const f = filtersFromParams(new URLSearchParams('type=pdf&size=huge&kind=folderz'));
+		expect(f.type).toBe('all');
+		expect(f.size).toBe('all');
+		expect(f.kind).toBe('all');
+	});
+
+	it('treats recursive=0 as off and anything else as on', () => {
+		expect(filtersFromParams(new URLSearchParams('recursive=0')).recursive).toBe(false);
+		expect(filtersFromParams(new URLSearchParams('recursive=1')).recursive).toBe(true);
+	});
+
+	it('ignores params that belong to the surface', () => {
+		const f = filtersFromParams(new URLSearchParams('in=abc&scope=all&file=xyz'));
+		expect(f).toEqual(defaultFilterState());
+	});
+});
+
+describe('applyFilterParams', () => {
+	it('writes only the non-default dimensions', () => {
+		const f = { ...defaultFilterState(), type: 'image' as const, kind: 'file' as const };
+		const p = new URLSearchParams('');
+		applyFilterParams(p, f);
+		expect(p.toString()).toBe('type=image&kind=file');
+	});
+
+	it('keeps the surface-owned params around it', () => {
+		const f = { ...defaultFilterState(), size: 'small' as const, recursive: false };
+		const p = new URLSearchParams('in=abc&scope=all');
+		applyFilterParams(p, f);
+		expect(p.get('in')).toBe('abc');
+		expect(p.get('scope')).toBe('all');
+		expect(p.get('size')).toBe('small');
+		expect(p.get('recursive')).toBe('0');
+	});
+
+	it('drops a dimension that went back to its default', () => {
+		const p = new URLSearchParams('type=image&kind=folder');
+		applyFilterParams(p, defaultFilterState());
+		expect(p.toString()).toBe('');
+	});
+
+	it('leaves the keyword alone unless asked', () => {
+		const p = new URLSearchParams('q=report');
+		applyFilterParams(p, defaultFilterState());
+		expect(p.get('q')).toBe('report');
+		const p2 = new URLSearchParams('q=report');
+		applyFilterParams(p2, { ...defaultFilterState(), query: 'plan' }, true);
+		expect(p2.get('q')).toBe('plan');
+	});
+
+	it('round-trips through filtersFromParams', () => {
+		const f = {
+			query: 'report',
+			recursive: false,
+			type: 'video' as const,
+			size: 'medium' as const,
+			date: 'month' as const,
+			created: 'year' as const,
+			kind: 'file' as const
+		};
+		const p = new URLSearchParams('');
+		applyFilterParams(p, f, true);
+		expect(filtersFromParams(p)).toEqual(f);
+	});
+});
+
+describe('filterParamsToString', () => {
+	it('omits the keyword by default and encodes values', () => {
+		expect(filterParamsToString({ ...defaultFilterState(), query: 'a b' })).toBe('');
+		expect(
+			filterParamsToString({ ...defaultFilterState(), query: 'a b', type: 'image' }, true)
+		).toBe('q=a%20b&type=image');
+	});
+});
+
+describe('filterParamEntries', () => {
+	it('lists every live dimension as a param pair', () => {
+		const f = {
+			...defaultFilterState(),
+			type: 'image' as const,
+			size: 'large' as const,
+			date: 'week' as const,
+			created: 'month' as const,
+			kind: 'folder' as const,
+			recursive: false
+		};
+		expect(filterParamEntries(f)).toEqual([
+			['type', 'image'],
+			['size', 'large'],
+			['date', 'week'],
+			['created', 'month'],
+			['kind', 'folder'],
+			['recursive', '0']
+		]);
+	});
+});
+
+describe('filterSearchOver', () => {
+	it('overwrites filter params onto a base and keeps foreign params', () => {
+		const base = new URLSearchParams('?file=abc&in=dir1&type=video');
+		expect(filterSearchOver(base, { ...defaultFilterState(), type: 'image' })).toBe(
+			'?file=abc&in=dir1&type=image'
+		);
+	});
+
+	it('collapses an all-defaults result to an empty search string', () => {
+		const base = new URLSearchParams('?type=video&q=x');
+		// includeQuery=true — with false, `?q=` belongs to the search box and
+		// survives the overwrite by design.
+		expect(filterSearchOver(base, defaultFilterState(), true)).toBe('');
+	});
+});
diff --git a/frontend/src/lib/utils/searchFilters.ts b/frontend/src/lib/utils/searchFilters.ts
index 5a4f7b0b..4f29e86b 100644
--- a/frontend/src/lib/utils/searchFilters.ts
+++ b/frontend/src/lib/utils/searchFilters.ts
@@ -1,15 +1,22 @@
 // Shared resource-filter model for search-backed list views.
 //
-// Extracted from the /search page so the files page's filter bar and
-// /search's filter selects share one source of truth for the preset
-// vocabularies (type / size / date) and their mapping onto
-// `SearchOptions`. Pure functions only — no runes here, so the module is
-// unit-testable without component scaffolding.
+// One source of truth for the preset vocabularies (type / size / date /
+// created / kind), their mapping onto `SearchOptions`, and their
+// serialization in and out of the URL. The files page's filter bar, the
+// top bar's filter panel and the /search page all bind the same state
+// object, and the URL is its projection — see `filtersFromParams` /
+// `filterParamsInto`. Pure functions only — no runes here, so the module
+// is unit-testable without component scaffolding.
 import type { SearchOptions } from '$lib/api/endpoints/search';
 
 export type TypeKey = 'all' | 'image' | 'video' | 'document' | 'audio' | 'archive';
 export type SizeKey = 'all' | 'small' | 'medium' | 'large';
 export type DateKey = 'all' | 'day' | 'week' | 'month' | 'year';
+/** Files, folders, or both — maps to the backend's `resource_types`. */
+export type KindKey = 'all' | 'file' | 'folder';
+
+/** The filter dimensions carried in the URL, in URL-key order. */
+export type FilterDimension = 'type' | 'size' | 'date' | 'created' | 'kind';
 
 /** Full filter state for a search-backed resource list. */
 export interface ResourceFilterState {
@@ -19,10 +26,21 @@ export interface ResourceFilterState {
 	type: TypeKey;
 	size: SizeKey;
 	date: DateKey;
+	/** Created-time preset, independent of the modified-time one. */
+	created: DateKey;
+	kind: KindKey;
 }
 
 export function defaultFilterState(): ResourceFilterState {
-	return { query: '', recursive: true, type: 'all', size: 'all', date: 'all' };
+	return {
+		query: '',
+		recursive: true,
+		type: 'all',
+		size: 'all',
+		date: 'all',
+		created: 'all',
+		kind: 'all'
+	};
 }
 
 export const TYPE_EXT: Record<Exclude<TypeKey, 'all'>, string[]> = {
@@ -66,7 +84,52 @@ export function dateBound(k: DateKey): number | undefined {
 
 /** True when any filter dimension would change the result set. */
 export function isFilterActive(f: ResourceFilterState): boolean {
-	return f.query.trim() !== '' || f.type !== 'all' || f.size !== 'all' || f.date !== 'all';
+	return f.query.trim() !== '' || activeFilterCount(f) > 0;
+}
+
+/**
+ * Number of active preset dimensions (the keyword is counted separately —
+ * it has its own clear affordance). Drives the filter button's badge.
+ */
+export function activeFilterCount(f: ResourceFilterState): number {
+	return activeFilters(f).length;
+}
+
+/** The dimensions currently differing from their default, URL-key ordered. */
+export function activeFilters(f: ResourceFilterState): { key: FilterDimension; value: string }[] {
+	const out: { key: FilterDimension; value: string }[] = [];
+	if (f.type !== 'all') out.push({ key: 'type', value: f.type });
+	if (f.size !== 'all') out.push({ key: 'size', value: f.size });
+	if (f.date !== 'all') out.push({ key: 'date', value: f.date });
+	if (f.created !== 'all') out.push({ key: 'created', value: f.created });
+	if (f.kind !== 'all') out.push({ key: 'kind', value: f.kind });
+	return out;
+}
+
+/**
+ * i18n key naming a dimension's current value, so chips and labels read
+ * from one vocabulary. `created` reuses the modified-time preset labels
+ * ("Past week" reads the same for either timestamp) and `kind` gets its
+ * own family.
+ */
+export function filterValueLabelKey(key: FilterDimension, value: string): string {
+	if (key === 'created') return `search.date.${value}`;
+	if (key === 'kind') return `filter.kind.${value}`;
+	return `search.${key}.${value}`;
+}
+
+/** i18n key naming a dimension itself (the chip's "Type:" prefix). */
+export function filterDimensionLabelKey(key: FilterDimension): string {
+	if (key === 'created') return 'filter.created_label';
+	if (key === 'kind') return 'filter.kind_label';
+	if (key === 'date') return 'filter.modified_label';
+	return `search.${key}_label`;
+}
+
+/** Reset one dimension to its default (the chip's dismiss action). */
+export function clearFilterDimension(f: ResourceFilterState, key: FilterDimension): void {
+	if (key === 'kind') f.kind = 'all';
+	else f[key] = 'all';
 }
 
 /** Reset every dimension in place (runes-friendly — mutates the $state proxy). */
@@ -76,21 +139,139 @@ export function clearFilterState(f: ResourceFilterState): void {
 	f.type = 'all';
 	f.size = 'all';
 	f.date = 'all';
+	f.created = 'all';
+	f.kind = 'all';
 }
 
 /**
  * Map the filter state onto the search-wire options. Scope (folderId) and
- * sorting stay the caller's concern — they differ per surface. The date
- * preset maps to `modifiedAfter` (its labels read "Past N", which matches
- * modified-time semantics); created-time bounds are a possible follow-up.
+ * sorting stay the caller's concern — they differ per surface.
  */
 export function filterToSearchOptions(
 	f: ResourceFilterState
-): Pick<SearchOptions, 'fileTypes' | 'minSize' | 'maxSize' | 'modifiedAfter' | 'recursive'> {
+): Pick<
+	SearchOptions,
+	| 'fileTypes'
+	| 'minSize'
+	| 'maxSize'
+	| 'modifiedAfter'
+	| 'createdAfter'
+	| 'resourceTypes'
+	| 'recursive'
+> {
 	return {
 		fileTypes: f.type === 'all' ? undefined : TYPE_EXT[f.type],
 		...sizeBounds(f.size),
 		modifiedAfter: dateBound(f.date),
+		createdAfter: dateBound(f.created),
+		resourceTypes: f.kind === 'all' ? undefined : [f.kind],
 		recursive: f.recursive
 	};
 }
+
+// ---------------------------------------------------------------------------
+// URL projection
+//
+// The URL carries the UI preset keys (`type=image`), never the expanded wire
+// values (extension lists, byte ranges) — the URL stays readable and keeps
+// working when a vocabulary grows. Only non-default dimensions are written,
+// and an unrecognized value degrades to the default rather than erroring.
+// ---------------------------------------------------------------------------
+
+const TYPE_KEYS: readonly TypeKey[] = ['all', 'image', 'video', 'document', 'audio', 'archive'];
+const SIZE_KEYS: readonly SizeKey[] = ['all', 'small', 'medium', 'large'];
+const DATE_KEYS: readonly DateKey[] = ['all', 'day', 'week', 'month', 'year'];
+const KIND_KEYS: readonly KindKey[] = ['all', 'file', 'folder'];
+
+/** Every param this module owns, so a write can clear the stale ones first. */
+const FILTER_PARAM_KEYS = ['q', 'type', 'size', 'date', 'created', 'kind', 'recursive'] as const;
+
+function pickOne<T extends string>(raw: string | null, allowed: readonly T[], fallback: T): T {
+	return raw !== null && (allowed as readonly string[]).includes(raw) ? (raw as T) : fallback;
+}
+
+/**
+ * Read the filter dimensions out of URL params. Every other param (`in`,
+ * `scope`, `file`, …) belongs to the surface and is left untouched; missing
+ * or unknown values fall back to the default for that dimension.
+ */
+export function filtersFromParams(params: URLSearchParams): ResourceFilterState {
+	return {
+		query: params.get('q')?.trim() ?? '',
+		recursive: params.get('recursive') !== '0',
+		type: pickOne(params.get('type'), TYPE_KEYS, 'all'),
+		size: pickOne(params.get('size'), SIZE_KEYS, 'all'),
+		date: pickOne(params.get('date'), DATE_KEYS, 'all'),
+		created: pickOne(params.get('created'), DATE_KEYS, 'all'),
+		kind: pickOne(params.get('kind'), KIND_KEYS, 'all')
+	};
+}
+
+/**
+ * The query-string entries for a filter state, defaults omitted.
+ *
+ * `q` is opt-in: on the files page the keyword belongs to the filter bar, but
+ * on /search the search box owns `?q=` and already writes it — emitting it
+ * from the state there would put two writers on one param.
+ */
+export function filterParamEntries(
+	f: ResourceFilterState,
+	includeQuery = false
+): [string, string][] {
+	const out: [string, string][] = [];
+	const q = f.query.trim();
+	if (includeQuery && q) out.push(['q', q]);
+	if (f.type !== 'all') out.push(['type', f.type]);
+	if (f.size !== 'all') out.push(['size', f.size]);
+	if (f.date !== 'all') out.push(['date', f.date]);
+	if (f.created !== 'all') out.push(['created', f.created]);
+	if (f.kind !== 'all') out.push(['kind', f.kind]);
+	// `recursive` defaults to true, so only the override is worth carrying.
+	if (!f.recursive) out.push(['recursive', '0']);
+	return out;
+}
+
+/** The entries as a query string (no leading `?`), for hand-built targets. */
+export function filterParamsToString(f: ResourceFilterState, includeQuery = false): string {
+	return filterParamEntries(f, includeQuery)
+		.map(([k, v]) => `${k}=${encodeURIComponent(v)}`)
+		.join('&');
+}
+
+/**
+ * Overwrite the filter params of `params` **in place** — the shape the pages
+ * need, since they write into a copy of `page.url` so the surface's own
+ * params (`?file=`, `in`, `scope`) survive untouched.
+ */
+export function applyFilterParams(
+	params: URLSearchParams,
+	f: ResourceFilterState,
+	includeQuery = false
+): void {
+	for (const key of FILTER_PARAM_KEYS) {
+		// `?q=` is the search box's when the state does not own it — deleting a
+		// param we do not write would wipe the query the page is showing.
+		if (key === 'q' && !includeQuery) continue;
+		params.delete(key);
+	}
+	for (const [k, v] of filterParamEntries(f, includeQuery)) params.set(k, v);
+}
+
+/**
+ * The `url.search` string `base` carries once the filter params of `f` are
+ * overwritten onto it — everything else (`?file=`, `in`, `scope`) survives.
+ * An all-defaults result collapses to `''` so callers can compare the value
+ * directly against `page.url.search`. Composed here rather than at the call
+ * site so reactive modules can build the string without holding a mutable
+ * `URL` copy (which `svelte/prefer-svelte-reactivity` treats as state).
+ */
+export function filterSearchOver(
+	base: URLSearchParams,
+	f: ResourceFilterState,
+	includeQuery = false
+): string {
+	const params = new URLSearchParams(base);
+	applyFilterParams(params, f, includeQuery);
+	const serialized = params.toString();
+	return serialized ? `?${serialized}` : '';
+}
diff --git a/frontend/src/routes/files/[...path]/+page.svelte b/frontend/src/routes/files/[...path]/+page.svelte
index f98f5ad4..4b3fb795 100644
--- a/frontend/src/routes/files/[...path]/+page.svelte
+++ b/frontend/src/routes/files/[...path]/+page.svelte
@@ -62,12 +62,13 @@
 	import { replaceSet } from '$lib/utils/sets';
 	import { mapLimit } from '$lib/utils/mapLimit';
 	import {
-		defaultFilterState,
 		clearFilterState,
+		filterParamsToString,
 		isFilterActive,
-		filterToSearchOptions,
-		type ResourceFilterState
+		filterToSearchOptions
 	} from '$lib/utils/searchFilters';
+	import { resourceFilters } from '$lib/stores/filter.svelte';
+	import { useFilterUrlSync } from '$lib/composables/useFilterUrlSync.svelte';
 	import { searchResources } from '$lib/api/endpoints/search';
 	import {
 		useResourceActions,
@@ -278,7 +279,11 @@
 					typeof localStorage !== 'undefined' ? localStorage.getItem('oxi-last-drive-root') : null;
 				const target = last ?? home;
 				if (target) {
-					await goto(resolve(`/files/${target}`), { replaceState: true });
+					// `folderTarget` keeps any deep-linked filter params
+					// (`/files?type=image`) alive through the canonicalization.
+					// folderTarget embeds resolve(); the rule can't see through it.
+					// eslint-disable-next-line svelte/no-navigation-without-resolve
+					await goto(folderTarget(target), { replaceState: true });
 					return;
 				}
 			}
@@ -458,8 +463,25 @@
 	// searches (type/size/date, no keyword) work; its Tantivy content index
 	// additionally requires ≥2 chars before it engages, so empty queries stay
 	// name/filter-driven.
-	let filter = $state<ResourceFilterState>(defaultFilterState());
+	//
+	// `filter` is the module-level shared store (`$lib/stores/filter.svelte`)
+	// — the same object the top bar's filter panel mutates, so both surfaces
+	// always agree. `useFilterUrlSync(true)` mirrors it to/from this page's
+	// URL (`?q=…&type=…&recursive=0`), which is what makes a filtered view
+	// refresh-proof and Back-button-restoreable. Local alias kept so the
+	// search-mode code below reads unchanged.
+	const filter = resourceFilters;
+	useFilterUrlSync(true);
 	const searchActive = $derived(isFilterActive(filter));
+
+	/** Folder-entry URL that carries the active filter params along (the
+	 * filter used to live in component state and survived folder navigation;
+	 * URL state needs the params forwarded explicitly). */
+	function folderTarget(id: string): string {
+		const base = resolve(`/files/${id}`);
+		const qs = filterParamsToString(filter, true);
+		return qs ? `${base}?${qs}` : base;
+	}
 	let searchItems = $state<Array<FileItem | FolderItem>>([]);
 	let searchCursor = $state<string | undefined>(undefined);
 	let searchSeq = 0;
@@ -606,8 +628,11 @@
 	function openFolder(folder: FolderItem) {
 		// Canonical single-id URL. Legacy `/files/A/B/C` still resolves
 		// (canonicalize-on-load rewrites it inside `load()`), but new
-		// navigation lands directly on `/files/{id}`.
-		goto(resolve(`/files/${folder.id}`));
+		// navigation lands directly on `/files/{id}`. Active filter params
+		// ride along (`folderTarget`) so filtering survives folder entry.
+		// folderTarget embeds resolve(); the rule can't see through it.
+		// eslint-disable-next-line svelte/no-navigation-without-resolve
+		goto(folderTarget(folder.id));
 	}
 
 	async function onNewFolder() {
@@ -1931,12 +1956,16 @@
 	// inputs change: any filter dimension, the folder it's scoped to
 	// (`currentId`, resolved by `load()` above), or the sort dimension.
 	// Inactive (plain folder listing) is the no-op fast path. `filter` is
-	// a `$state` proxy — the field reads are what register the deps.
+	// the shared store's `$state` proxy — the field reads are what register
+	// the deps (and `useFilterUrlSync` above runs first in the same flush,
+	// so URL hydration lands before this fires).
 	$effect(() => {
 		void filter.query;
 		void filter.type;
 		void filter.size;
 		void filter.date;
+		void filter.created;
+		void filter.kind;
 		void filter.recursive;
 		void currentId;
 		void sortField;
@@ -1986,9 +2015,11 @@
 	<!-- Fuzzy filter bar: scoped keyword + type/size/date presets over the
 	     current folder (recursive toggle inside). While any dimension is
 	     active the listing below switches from the folder page to the
-	     search results; clearing it returns to the plain folder view. -->
+	     search results; clearing it returns to the plain folder view. The
+	     bar mutates the shared store proxy in place — no bind, the state
+	     lives in `$lib/stores/filter.svelte`. -->
 	<div class="files-filter-row">
-		<SearchFilterBar bind:value={filter} />
+		<SearchFilterBar value={filter} />
 	</div>
 
 	<!-- Hidden upload inputs stay mounted even while the batch bar is shown.
@@ -2302,7 +2333,8 @@
 					const id = ctxTarget!.id;
 					closeContext();
 					// Canonical single-id URL — see `openFolder` above.
-					goto(resolve(`/files/${id}`));
+					// eslint-disable-next-line svelte/no-navigation-without-resolve
+					goto(folderTarget(id));
 				}}><Icon name="folder-open" /> {t('files.open', 'Open')}</button
 			>
 			<button
diff --git a/frontend/src/routes/files/page.test.ts b/frontend/src/routes/files/page.test.ts
index 3fe5645f..57885a81 100644
--- a/frontend/src/routes/files/page.test.ts
+++ b/frontend/src/routes/files/page.test.ts
@@ -321,3 +321,41 @@ it('shows the search result count while the filter is active', async () => {
 	const stat = await screen.findByTestId('files-folder-stat');
 	expect(stat.textContent).toContain('1 results');
 });
+
+it('hydrates filter presets from a deep-linked URL and runs the scoped search', async () => {
+	withListing();
+	pageState.url = new URL('http://localhost/files/home?type=image&kind=folder');
+	m(searchResources).mockResolvedValue({ items: [], query_time_ms: 1 });
+	render(FilesPage);
+	await waitFor(() => expect(fetchFolderPage).toHaveBeenCalled());
+	await waitFor(() => expect(searchResources).toHaveBeenCalled());
+	expect(m(searchResources).mock.calls[0][1]).toMatchObject({
+		folderId: 'home',
+		fileTypes: ['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg', 'bmp', 'heic', 'avif', 'tiff'],
+		resourceTypes: ['folder']
+	});
+	// The bar's own select reflects the hydrated state (expand the row first).
+	await fireEvent.click(screen.getByTestId('filter-advanced-toggle-btn'));
+	expect((screen.getByTestId('filter-type-select') as HTMLSelectElement).value).toBe('image');
+});
+
+it('writes an edited filter back to the URL exactly once (no sync loop)', async () => {
+	withListing();
+	m(searchResources).mockResolvedValue({ items: [], query_time_ms: 1 });
+	render(FilesPage);
+	await waitFor(() => expect(fetchFolderPage).toHaveBeenCalled());
+	m(goto).mockClear();
+	vi.useFakeTimers();
+	await fireEvent.input(screen.getByTestId('filter-keyword-input'), {
+		target: { value: 'hello' }
+	});
+	await vi.advanceTimersByTimeAsync(400);
+	vi.useRealTimers();
+	// One replaceState write for the debounced keyword — and nothing else:
+	// the effect must recognize its own write and settle, not ping-pong.
+	expect(goto).toHaveBeenCalledTimes(1);
+	// The sync composable passes a path/search/hash string (a URL instance
+	// would trip svelte/prefer-svelte-reactivity in the .svelte.ts module).
+	const written = m(goto).mock.calls[0][0] as string;
+	expect(written).toContain('q=hello');
+});
diff --git a/frontend/src/routes/search/+page.svelte b/frontend/src/routes/search/+page.svelte
index 010607c0..3a4ceaa3 100644
--- a/frontend/src/routes/search/+page.svelte
+++ b/frontend/src/routes/search/+page.svelte
@@ -22,17 +22,20 @@
 	import type { FileItem, FolderItem, SearchResourceItem, SortBy } from '$lib/api/types';
 	import { lazyComponent } from '$lib/composables/lazyComponent.svelte';
 	import { folderAccessCached, probeFolderAccess } from '$lib/utils/folderAccess';
-	import { TYPE_EXT, dateBound, sizeBounds } from '$lib/utils/searchFilters';
+	import { filterToSearchOptions } from '$lib/utils/searchFilters';
+	import { useFilterUrlSync } from '$lib/composables/useFilterUrlSync.svelte';
 	import { SvelteSet } from 'svelte/reactivity';
 	import { replaceSet } from '$lib/utils/sets';
 	import {
 		useResourceActions,
 		type ActionTarget
 	} from '$lib/composables/useResourceActions.svelte';
+	import FilterChips from '$lib/components/FilterChips.svelte';
 	import Icon from '$lib/icons/Icon.svelte';
 	import { t } from '$lib/i18n/index.svelte';
 	import { confirmDialog, promptDialog } from '$lib/stores/dialogs.svelte';
 	import { files as filesStore } from '$lib/stores/files.svelte';
+	import { resourceFilters } from '$lib/stores/filter.svelte';
 	import { session } from '$lib/stores/session.svelte';
 	import { ui } from '$lib/stores/ui.svelte';
 
@@ -125,72 +128,48 @@
 		scopeOverride === 'all' ? 'all' : effectiveFolder && scopeFolderId ? 'folder' : 'all'
 	);
 	function setScope(next: 'all' | 'folder') {
-		// Build the query string by hand — Svelte's lint flags mutating a
-		// stdlib `URLSearchParams`, and we don't need reactivity here.
+		// Copy the current URL and flip only the scope params — `q=` and the
+		// filter presets already in it survive untouched (they used to be
+		// dropped here when the query string was rebuilt by hand).
 		//
 		// Key point (Ed's 2026-07-26 UX ask): the `in=` param is preserved
 		// even when switching to "Everywhere" so "This folder" stays
 		// clickable and remembers WHICH folder. The active-scope flip
 		// rides on `scope=all` instead.
-		const parts: string[] = [];
-		if (query) parts.push(`q=${encodeURIComponent(query)}`);
+		const url = new URL(page.url);
 		// Sticky `in=`: keep whatever's already in the URL, or seed it
 		// from filesStore when the user first pins "This folder" from a
 		// fresh /search visit.
 		const stickyFolder = scopeFolderId ?? (next === 'folder' ? filesStore.currentFolder : null);
 		if (stickyFolder) {
-			parts.push(`in=${encodeURIComponent(stickyFolder)}`);
+			url.searchParams.set('in', stickyFolder);
+		} else {
+			url.searchParams.delete('in');
 		}
 		if (next === 'all' && stickyFolder) {
 			// Only meaningful when there's a folder to override — otherwise
 			// the URL is "everywhere by default" and the flag would be noise.
-			parts.push('scope=all');
+			url.searchParams.set('scope', 'all');
+		} else {
+			url.searchParams.delete('scope');
 		}
-		const target = resolve(parts.length ? `/search?${parts.join('&')}` : '/search');
 		// `replaceState: true` keeps the browser back-button meaningful —
 		// scope changes are UI state, not navigation. `keepFocus: true`
 		// keeps focus on whatever button the user just clicked.
-		void goto(target, { replaceState: true, keepFocus: true, noScroll: true });
+		// Same-origin URL object (see useFilterUrlSync); resolve() can't type it.
+		// eslint-disable-next-line svelte/no-navigation-without-resolve
+		void goto(url, { replaceState: true, keepFocus: true, noScroll: true });
 	}
 
-	// Filters — the preset vocabularies and their SearchOptions mapping live
-	// in the shared `searchFilters` util (also consumed by the files page's
-	// filter bar); only the i18n label lists stay local since they need `t()`.
-	type TypeKey = 'all' | 'image' | 'video' | 'document' | 'audio' | 'archive';
-	type SizeKey = 'all' | 'small' | 'medium' | 'large';
-	type DateKey = 'all' | 'day' | 'week' | 'month' | 'year';
-	let typeFilter = $state<TypeKey>('all');
-	let sizeFilter = $state<SizeKey>('all');
-	let dateFilter = $state<DateKey>('all');
-
-	const TYPES: { v: TypeKey; l: string }[] = [
-		{ v: 'all', l: t('search.type.all', 'All types') },
-		{ v: 'image', l: t('search.type.image', 'Images') },
-		{ v: 'video', l: t('search.type.video', 'Videos') },
-		{ v: 'document', l: t('search.type.document', 'Documents') },
-		{ v: 'audio', l: t('search.type.audio', 'Audio') },
-		{ v: 'archive', l: t('search.type.archive', 'Archives') }
-	];
-	const SIZES: { v: SizeKey; l: string }[] = [
-		{ v: 'all', l: t('search.size.all', 'Any size') },
-		{ v: 'small', l: t('search.size.small', '< 1 MB') },
-		{ v: 'medium', l: t('search.size.medium', '1–100 MB') },
-		{ v: 'large', l: t('search.size.large', '> 100 MB') }
-	];
-	const DATES: { v: DateKey; l: string }[] = [
-		{ v: 'all', l: t('search.date.all', 'Any time') },
-		{ v: 'day', l: t('search.date.day', 'Past 24 hours') },
-		{ v: 'week', l: t('search.date.week', 'Past week') },
-		{ v: 'month', l: t('search.date.month', 'Past month') },
-		{ v: 'year', l: t('search.date.year', 'Past year') }
-	];
-
-	const hasFilters = $derived(typeFilter !== 'all' || sizeFilter !== 'all' || dateFilter !== 'all');
-	function clearFilters() {
-		typeFilter = 'all';
-		sizeFilter = 'all';
-		dateFilter = 'all';
-	}
+	// Filters live in the shared store (`$lib/stores/filter.svelte`) and are
+	// mirrored to/from this page's URL — the top bar's filter panel and the
+	// files page's filter bar mutate the same object, so a filter set in
+	// either place is live here, and every dimension is URL-persisted
+	// (`?type=…&size=…&created=…&kind=…&recursive=0`) for refresh/bookmark/
+	// Back. The active presets render as dismissible chips in the header
+	// (`<FilterChips>` in the actions snippet) — the old in-page selects
+	// duplicated the vocabularies and lost state on every refresh.
+	useFilterUrlSync(false);
 
 	// ── Group / sort dimensions (shown in the DisplayModeControls dropdown) ──
 	// Ed's 2026-07-26 spec: 4 options total —
@@ -254,16 +233,14 @@
 			scope === 'folder' && filesStore.section !== 'trash'
 				? (effectiveFolder ?? undefined)
 				: undefined;
-		// TYPE_EXT / sizeBounds / dateBound come from `$lib/utils/searchFilters`
-		// (shared with the files-page filter bar).
+		// Filter presets come from the shared store (hydrated from this
+		// page's URL by `useFilterUrlSync`), mapped onto the wire by the
+		// util shared with the files page's filter bar.
 		return {
-			recursive: true,
+			...filterToSearchOptions(resourceFilters),
 			sortBy: orderByForGroup() as SortBy,
 			reverse: reversed,
-			folderId,
-			fileTypes: typeFilter === 'all' ? undefined : TYPE_EXT[typeFilter],
-			...sizeBounds(sizeFilter),
-			modifiedAfter: dateBound(dateFilter)
+			folderId
 		};
 	}
 
@@ -546,13 +523,19 @@
 	];
 
 	$effect(() => {
-		// re-run when query, sort/direction, scope, or any filter changes
+		// re-run when query, sort/direction, scope, or any filter changes.
+		// The filter store is hydrated from the URL by `useFilterUrlSync`
+		// (registered earlier, so it runs first in the same flush) — these
+		// field reads register the deps.
 		void groupBy;
 		void reversed;
 		void scope;
-		void typeFilter;
-		void sizeFilter;
-		void dateFilter;
+		void resourceFilters.type;
+		void resourceFilters.size;
+		void resourceFilters.date;
+		void resourceFilters.created;
+		void resourceFilters.kind;
+		void resourceFilters.recursive;
 		void run(query);
 	});
 
@@ -686,47 +669,14 @@
 					{t('search.this_folder', 'This folder')}
 				</button>
 			</div>
-			<select
-				class="sort-select"
-				bind:value={typeFilter}
-				aria-label={t('search.type_label', 'Type')}
-				data-testid="search-type-filter-select"
-			>
-				{#each TYPES as o (o.v)}<option value={o.v} data-testid={`search-type-${o.v}`}>{o.l}</option
-					>{/each}
-			</select>
-			<select
-				class="sort-select"
-				bind:value={sizeFilter}
-				aria-label={t('search.size_label', 'Size')}
-				data-testid="search-size-filter-select"
-			>
-				{#each SIZES as o (o.v)}<option value={o.v} data-testid={`search-size-${o.v}`}>{o.l}</option
-					>{/each}
-			</select>
-			<select
-				class="sort-select"
-				bind:value={dateFilter}
-				aria-label={t('search.date_label', 'Date')}
-				data-testid="search-date-filter-select"
-			>
-				{#each DATES as o (o.v)}<option value={o.v} data-testid={`search-date-${o.v}`}>{o.l}</option
-					>{/each}
-			</select>
 			<!--
-				NOTE: sort dimension + asc/desc live in ResourceList's
-				built-in DisplayModeControls now (fed by `groupBys` +
-				`bind:groupBy` + `bind:reversed` below), matching
-				/favorites / /recent / /trash. The old
-				`<select bind:value={sortBy}>` was removed with the
-				`SORTS` array.
+				Filter editing lives in the top bar's panel (the unified
+				entry); this page only SHOWS the active presets, as
+				dismissible chips. NOTE: sort dimension + asc/desc live in
+				ResourceList's built-in DisplayModeControls (fed by
+				`groupBys` + `bind:groupBy` + `bind:reversed` below).
 			-->
-			{#if hasFilters}
-				<button class="clear-filters" data-testid="search-clear-filters-btn" onclick={clearFilters}>
-					<Icon name="times" />
-					{t('search.clear_filters', 'Clear filters')}
-				</button>
-			{/if}
+			<FilterChips value={resourceFilters} />
 		{/snippet}
 		{#snippet breadcrumb()}
 			<!--
@@ -845,20 +795,12 @@
 {/if}
 
 <style>
-	/* Filter cluster lives inside ResourceList's action-bar snippet now,
+	/* Scope segment lives inside ResourceList's action-bar snippet now,
 	   but the actual DOM is scoped to THIS component's \3c style> block —
 	   Svelte's scoped selectors still apply because these are declared
 	   with the elements they style below.
 
 	   Every color/border here uses tokens; no raw values (Stylelint gate). */
-	.sort-select {
-		padding: var(--space-2) var(--space-2-5);
-		border: 1px solid var(--color-border);
-		border-radius: var(--radius-md);
-		background: var(--color-bg-input);
-		color: var(--color-text);
-	}
-
 	.seg {
 		display: flex;
 		border: 1px solid var(--color-border);
@@ -883,20 +825,4 @@
 		opacity: 0.5;
 		cursor: not-allowed;
 	}
-
-	.clear-filters {
-		display: inline-flex;
-		align-items: center;
-		gap: 0.35rem;
-		padding: var(--space-2) var(--space-3);
-		border: 1px solid var(--color-border);
-		border-radius: var(--radius-md);
-		background: var(--color-bg-surface);
-		color: var(--color-text-muted);
-		cursor: pointer;
-	}
-
-	.clear-filters:hover {
-		background: var(--color-bg-hover);
-	}
 </style>
diff --git a/frontend/src/routes/search/page.test.ts b/frontend/src/routes/search/page.test.ts
index f4a2f10e..a8b55a0b 100644
--- a/frontend/src/routes/search/page.test.ts
+++ b/frontend/src/routes/search/page.test.ts
@@ -126,6 +126,39 @@ it('surfaces a search error', async () => {
 	await waitFor(() => expect(screen.getByText('search boom')).toBeTruthy());
 });
 
+it('hydrates filter presets from the URL onto the wire options', async () => {
+	pageState.url = new URL(
+		'http://localhost/search?q=report&type=image&size=small&created=week&kind=file&recursive=0'
+	);
+	render(SearchPage);
+	await waitFor(() => expect(searchResources).toHaveBeenCalled());
+	expect(m(searchResources).mock.calls[0][1]).toMatchObject({
+		fileTypes: ['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg', 'bmp', 'heic', 'avif', 'tiff'],
+		maxSize: 1024 * 1024,
+		createdAfter: expect.any(Number),
+		resourceTypes: ['file'],
+		recursive: false
+	});
+	// The live presets are visible — and dismissible — as chips.
+	expect(screen.getByTestId('filter-chips')).toBeTruthy();
+	expect(screen.getByTestId('filter-chip-type')).toBeTruthy();
+	expect(screen.getByTestId('filter-chip-kind')).toBeTruthy();
+	expect(screen.getByTestId('filter-chip-size')).toBeTruthy();
+	expect(screen.getByTestId('filter-chip-created')).toBeTruthy();
+});
+
+it('an unknown filter value in the URL degrades to the default', async () => {
+	pageState.url = new URL('http://localhost/search?q=report&type=pdf&kind=aliens');
+	render(SearchPage);
+	await waitFor(() => expect(searchResources).toHaveBeenCalled());
+	expect(m(searchResources).mock.calls[0][1]).toMatchObject({
+		fileTypes: undefined,
+		resourceTypes: undefined
+	});
+	// No chips for dimensions that fell back to their defaults.
+	expect(screen.queryByTestId('filter-chip-type')).toBeNull();
+});
+
 it('batch-deletes the selected search results after confirmation', async () => {
 	m(searchResources).mockResolvedValue(searchHit());
 	confirmDialog.mockResolvedValue(true);
diff --git a/frontend/static/locales/ar.json b/frontend/static/locales/ar.json
index e2e9636d..d3909f45 100644
--- a/frontend/static/locales/ar.json
+++ b/frontend/static/locales/ar.json
@@ -422,7 +422,15 @@
     "advanced": "المرشحات",
     "recursive": "تضمين المجلدات الفرعية",
     "results_count": "{{n}} نتائج",
-    "clear_keyword": "مسح البحث"
+    "clear_keyword": "مسح البحث",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "الاسم",
diff --git a/frontend/static/locales/de.json b/frontend/static/locales/de.json
index 3bc726bb..cb6823ca 100644
--- a/frontend/static/locales/de.json
+++ b/frontend/static/locales/de.json
@@ -422,7 +422,15 @@
     "advanced": "Filter",
     "recursive": "Unterordner einbeziehen",
     "results_count": "{{n}} Ergebnisse",
-    "clear_keyword": "Suche löschen"
+    "clear_keyword": "Suche löschen",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Name",
diff --git a/frontend/static/locales/en.json b/frontend/static/locales/en.json
index 9597149d..e1a780df 100644
--- a/frontend/static/locales/en.json
+++ b/frontend/static/locales/en.json
@@ -457,7 +457,15 @@
     "advanced": "Filters",
     "recursive": "Include subfolders",
     "results_count": "{{n}} results",
-    "clear_keyword": "Clear search"
+    "clear_keyword": "Clear search",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Name",
diff --git a/frontend/static/locales/es.json b/frontend/static/locales/es.json
index b4174ff7..48796d22 100644
--- a/frontend/static/locales/es.json
+++ b/frontend/static/locales/es.json
@@ -422,7 +422,15 @@
     "advanced": "Filtros",
     "recursive": "Incluir subcarpetas",
     "results_count": "{{n}} resultados",
-    "clear_keyword": "Borrar búsqueda"
+    "clear_keyword": "Borrar búsqueda",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Nombre",
diff --git a/frontend/static/locales/fa.json b/frontend/static/locales/fa.json
index 5b7336ea..b49e1b36 100644
--- a/frontend/static/locales/fa.json
+++ b/frontend/static/locales/fa.json
@@ -422,7 +422,15 @@
     "advanced": "فیلترها",
     "recursive": "شامل زیرپوشه‌ها",
     "results_count": "{{n}} نتیجه",
-    "clear_keyword": "پاک کردن جستجو"
+    "clear_keyword": "پاک کردن جستجو",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "نام",
diff --git a/frontend/static/locales/fr.json b/frontend/static/locales/fr.json
index 9c9f138f..4cc65e4c 100644
--- a/frontend/static/locales/fr.json
+++ b/frontend/static/locales/fr.json
@@ -422,7 +422,15 @@
     "advanced": "Filtres",
     "recursive": "Inclure les sous-dossiers",
     "results_count": "{{n}} résultats",
-    "clear_keyword": "Effacer la recherche"
+    "clear_keyword": "Effacer la recherche",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Nom",
diff --git a/frontend/static/locales/hi.json b/frontend/static/locales/hi.json
index 28da4f49..a28e2f2d 100644
--- a/frontend/static/locales/hi.json
+++ b/frontend/static/locales/hi.json
@@ -422,7 +422,15 @@
     "advanced": "फ़िल्टर",
     "recursive": "सबफ़ोल्डर शामिल करें",
     "results_count": "{{n}} परिणाम",
-    "clear_keyword": "खोज साफ़ करें"
+    "clear_keyword": "खोज साफ़ करें",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "नाम",
diff --git a/frontend/static/locales/it.json b/frontend/static/locales/it.json
index 635110e8..66a12165 100644
--- a/frontend/static/locales/it.json
+++ b/frontend/static/locales/it.json
@@ -422,7 +422,15 @@
     "advanced": "Filtri",
     "recursive": "Includi sottocartelle",
     "results_count": "{{n}} risultati",
-    "clear_keyword": "Cancella ricerca"
+    "clear_keyword": "Cancella ricerca",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Nome",
diff --git a/frontend/static/locales/ja.json b/frontend/static/locales/ja.json
index 5db99457..fd70c4d1 100644
--- a/frontend/static/locales/ja.json
+++ b/frontend/static/locales/ja.json
@@ -422,7 +422,15 @@
     "advanced": "フィルター",
     "recursive": "サブフォルダを含める",
     "results_count": "{{n}} 件の結果",
-    "clear_keyword": "検索をクリア"
+    "clear_keyword": "検索をクリア",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "名前",
diff --git a/frontend/static/locales/ko.json b/frontend/static/locales/ko.json
index 53bc3cb7..da3e7107 100644
--- a/frontend/static/locales/ko.json
+++ b/frontend/static/locales/ko.json
@@ -422,7 +422,15 @@
     "advanced": "필터",
     "recursive": "하위 폴더 포함",
     "results_count": "{{n}}개 결과",
-    "clear_keyword": "검색 지우기"
+    "clear_keyword": "검색 지우기",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "이름",
diff --git a/frontend/static/locales/nl.json b/frontend/static/locales/nl.json
index 624773dd..8ab4e461 100644
--- a/frontend/static/locales/nl.json
+++ b/frontend/static/locales/nl.json
@@ -422,7 +422,15 @@
     "advanced": "Filters",
     "recursive": "Submappen opnemen",
     "results_count": "{{n}} resultaten",
-    "clear_keyword": "Zoekopdracht wissen"
+    "clear_keyword": "Zoekopdracht wissen",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Naam",
diff --git a/frontend/static/locales/pl.json b/frontend/static/locales/pl.json
index b8c9d239..aa99ad38 100644
--- a/frontend/static/locales/pl.json
+++ b/frontend/static/locales/pl.json
@@ -422,7 +422,15 @@
     "advanced": "Filtry",
     "recursive": "Uwzględnij podfoldery",
     "results_count": "Wyniki: {{n}}",
-    "clear_keyword": "Wyczyść wyszukiwanie"
+    "clear_keyword": "Wyczyść wyszukiwanie",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Nazwa",
diff --git a/frontend/static/locales/pt.json b/frontend/static/locales/pt.json
index 168cc517..f12fbaef 100644
--- a/frontend/static/locales/pt.json
+++ b/frontend/static/locales/pt.json
@@ -422,7 +422,15 @@
     "advanced": "Filtros",
     "recursive": "Incluir subpastas",
     "results_count": "{{n}} resultados",
-    "clear_keyword": "Limpar pesquisa"
+    "clear_keyword": "Limpar pesquisa",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Nome",
diff --git a/frontend/static/locales/ru.json b/frontend/static/locales/ru.json
index 00db58f6..32605c19 100644
--- a/frontend/static/locales/ru.json
+++ b/frontend/static/locales/ru.json
@@ -422,7 +422,15 @@
     "advanced": "Фильтры",
     "recursive": "Включая подпапки",
     "results_count": "Результатов: {{n}}",
-    "clear_keyword": "Очистить поиск"
+    "clear_keyword": "Очистить поиск",
+    "modified_label": "Modified",
+    "created_label": "Created",
+    "kind_label": "Items",
+    "kind": {
+      "all": "Files and folders",
+      "file": "Files only",
+      "folder": "Folders only"
+    }
   },
   "files": {
     "name": "Имя",
diff --git a/frontend/static/locales/zh-TW.json b/frontend/static/locales/zh-TW.json
index a800e388..f0105ddf 100644
--- a/frontend/static/locales/zh-TW.json
+++ b/frontend/static/locales/zh-TW.json
@@ -422,7 +422,15 @@
     "advanced": "篩選",
     "recursive": "包含子資料夾",
     "results_count": "{{n}} 個結果",
-    "clear_keyword": "清除搜尋"
+    "clear_keyword": "清除搜尋",
+    "modified_label": "修改時間",
+    "created_label": "建立時間",
+    "kind_label": "項目",
+    "kind": {
+      "all": "檔案與資料夾",
+      "file": "僅檔案",
+      "folder": "僅資料夾"
+    }
   },
   "files": {
     "name": "名稱",
diff --git a/frontend/static/locales/zh.json b/frontend/static/locales/zh.json
index 909cae55..bbc77fd1 100644
--- a/frontend/static/locales/zh.json
+++ b/frontend/static/locales/zh.json
@@ -422,7 +422,15 @@
     "advanced": "筛选",
     "recursive": "包含子文件夹",
     "results_count": "{{n}} 个结果",
-    "clear_keyword": "清除搜索"
+    "clear_keyword": "清除搜索",
+    "modified_label": "修改时间",
+    "created_label": "创建时间",
+    "kind_label": "条目",
+    "kind": {
+      "all": "文件和文件夹",
+      "file": "仅文件",
+      "folder": "仅文件夹"
+    }
   },
   "files": {
     "name": "名称",
diff --git a/status.md b/status.md
index e4c08f06..a8172097 100644
--- a/status.md
+++ b/status.md
@@ -9,6 +9,30 @@
 
 ## 已完成
 
+### [2026-09-21] 顶栏搜索框 × 筛选栏合并（并补齐筛选维度）
+- **状态**: 已完成（`npm run check` 全绿：svelte-check 0 错 0 警 + eslint + stylelint + prettier；`vitest run` 492 通过 0 失败，连续两轮稳定）
+- **计划**: 把上游顶栏搜索框与本地 `SearchFilterBar` 合并成一套筛选能力：顶栏搜索框内加筛选按钮 + 下拉面板（不动 70px 高度）；文件页筛选栏保留，两处共享同一份筛选状态并同步到 URL（就地筛选行为不丢）；`/search` 改为 URL 驱动、移除三个页内 select（改为可撤销 chips）；同时补上后端已支持但前端未暴露的 `resource_types`（仅文件/仅文件夹）与创建时间维度。后端零改动。
+- **改动文件**:
+  - 新增（仅本地）:
+    - `frontend/src/lib/stores/filter.svelte.ts` — 共享筛选 store（模块级 `$state`，唯一真值）
+    - `frontend/src/lib/composables/useFilterUrlSync.svelte.ts` — store↔URL 双向同步（单 `$effect` + `lastSeenSearch` 回声抑制，一轮收敛不成环）
+    - `frontend/src/lib/components/FilterFields.svelte` — 5 个 select（类型/大小/修改/创建/条目种类）+ 递归开关，词表与 i18n 标签集中于此（inline/panel 两种布局）
+    - `frontend/src/lib/components/TopBarFilterPanel.svelte` — 顶栏下拉面板壳（清除/完成按钮，激活计数驱动 badge）
+    - `frontend/src/lib/components/FilterChips.svelte` — `/search` 可撤销 chips（按维度撤销 + 清除全部）
+  - 仅本地改造:
+    - `frontend/src/lib/utils/searchFilters.ts` — 新维度 `kind`/`created` + URL 序列化（`filtersFromParams`/`filterParamEntries`/`filterParamsToString`/`applyFilterParams`/`filterSearchOver`）；测试 29 条
+    - `frontend/src/lib/components/SearchFilterBar.svelte` — 展开区改复用 `FilterFields`；`value` 为普通 prop（原地改共享代理，**故意不用 `$bindable`**，导入绑定不可再赋值）
+  - 上游文件:
+    - `frontend/src/lib/components/AppShell.svelte` — 搜索框内筛选按钮（右 44px，激活 badge）+ 面板接线；`searchActive`→`mobileSearchOpen`（CSS 类名不动）；提交/建议吃筛选（`filterToSearchOptions`）；Escape 链插入面板；全局点击关面板（`.search-container` 内不关）
+    - `frontend/src/lib/styles/ported/topbar.css` — 输入框右内边距 50→104px（预留 submit/筛选/清除三个控件）单行改动
+    - `frontend/src/routes/search/+page.svelte` — URL 驱动（`useFilterUrlSync(false)`）、删三个页内 select 与本地词表、接 `FilterChips`、`setScope` 只动 `in`/`scope`
+    - `frontend/src/routes/files/[...path]/+page.svelte` — 删本地 filter 状态改绑共享 store、`useFilterUrlSync(true)`、`folderTarget` 携带筛选参数（就地筛选/导航存活两不误）、驱动 effect 增加 `created`/`kind` 依赖
+    - `frontend/static/locales/*.json`（16 个）— `filter` 块新增 `modified_label`/`created_label`/`kind_label`/`kind.{all,file,folder}`（zh/zh-TW 真翻译，其余英文兜底；fr.json 按行拼接保持既有格式）
+    - 测试：`AppShell.test.ts`（+2：面板开关/预设随提交/清除）、`search/page.test.ts`（+2：URL 水合+chips、非法值回落）、`files/page.test.ts`（+2：深链水合+wire 参数、关键词写回恰好一次）、`searchFilters.test.ts`（扩到 31 条）
+- **仅本地文件**: 上述 5 个新增源文件 + `status.md`
+- **上游冲突风险**: 高 — `AppShell.svelte`、`topbar.css`、`routes/search/+page.svelte`、16 个 locale 均为上游活跃区。合并核对要点：① store 是唯一真值、URL 是投影（`lastSeenSearch` 回声抑制，勿改回双向各自 `goto`）；② `?q=` 归属——files 页 `includeQuery=true`、`/search` 与顶栏 `false`（`applyFilterParams` 删 `q` 前先看该开关）；③ `folderTarget` 三处 `goto` 带 `eslint-disable`（helper 内嵌 `resolve()`，规则看不穿）；④ `filterSearchOver` 下沉在普通 `.ts` 是为避开 `.svelte.ts` 的 `prefer-svelte-reactivity`（勿移回 composable）；⑤ 已知 dev-only 警告 `ownership_invalid_mutation`（共享代理按普通 prop 传入+原地改的既定设计，生产无影响）
+
+
 ### [2026-09-19] 缩略图路径 DB 点查缓存（find_attached_blob 进程内缓存）
 - **状态**: 已完成（commit `d33d1932`；cargo fmt --check ✓；clippy --all-features --all-targets -D warnings 0 警告 ✓；`cargo test --lib` 927 通过 0 失败，含新增 5 个缓存契约测试 ✓）
 - **计划**: 给缩略图热路径（ETag 计算 `thumbnail_content_id` + tier 2b）每次请求都要打的 `find_attached_blob` DB 点查加进程内缓存（moka::future + try_get_with，正+负缓存，Err 不入缓存；写路径成功后失效；删除经 `ThumbnailRefreshHook::on_file_deleted` 搭车失效 + 60s TTL 兜底）。缓解"每次进照片墙 = 每张可见图 1-2 次 DB 点查"的负载。