feat: large polish pass — UX fixes, per-chat scope, restore/backup, action events

Backend
- Per-chat album scope for Immich commands (search/latest/memory/...): new
  allowed_album_ids on CommandTrackerListener, threaded listener/page kwargs
  through ProviderCommandHandler.handle; PATCH listener-scope endpoint.
- /search and /find accept a trailing page number; Immich client search_smart
  / search_metadata take a page param.
- Immich person-asset lookup switched from removed GET /api/people/{id}/assets
  to POST /api/search/metadata with personIds (fixes /person command and
  auto_organize rules silently returning zero candidates on Immich 1.106+).
- Auto_organize rule now sets the target album's thumbnail to the first added
  image when missing (falls back to any asset type); failures do not fail the
  rule. add_assets_to_album surfaces the Immich error body on non-2xx.
- EventLog.user_id / action_id / action_name columns with defensive migration
  + backfill. Status query filters by user_id directly; Immich/webhook paths
  emit user_id explicitly. action_runner writes an action_success/partial/
  failed event on each non-dry-run.
- Dashboard DELETE /api/status/events (scoped to user_id) + rendering live
  tracker/provider/action names via FK join with snapshot fallback.
- PATCH /api/users/{id} for username/role change with last-admin guard.
- Deletion protection returns structured {message, entity, blocked_by}
  (ApiError carries .blockedBy; frontend opens BlockedByModal).
- Backup prepare-restore → AppSetting markers + atomic write of
  pending_restore.json; lifespan hook applies on next startup and archives
  under data/applied_restores/. apply-restart sends SIGTERM so the lifespan
  shutdown runs; NOTIFY_BRIDGE_SUPERVISED env override gates the button.
  Manual POST /api/backup/files (same format as scheduled).
- New periodic-summary test path reuses shared collect_scheduled_assets
  (limit=0) so test and future production code go through one primitive.
- Per-receiver locale for Telegram test messages (resolves
  TelegramChat.language_override per chat instead of applying the first
  receiver's locale to everyone).
- Bounded concurrency (semaphores) in NotificationDispatcher._preload_asset_data
  and _refresh_telegram_chat_titles; chat title sweep extended to 24h since
  save_chat_from_webhook covers active chats opportunistically.
- Telegram poller detects the \"webhook is active\" 409 and auto-calls
  deleteWebhook for bots whose DB update_mode is polling (throttled per bot).
- TelegramClient.get_chat added (CLAUDE.md rule 6); set_album_thumbnail added.
- Seeds: rename \"Default Commands\" → \"Default Immich Commands\";
  track_assets_removed default False.

Frontend
- Global provider selector visible when there is only one provider.
- Clear-events button + i18n + ConfirmModal on the dashboard; new icons/
  labels/filters/colors for action_success / action_partial / action_failed.
- Auto-select first available tracking/template/command/config + bot on
  create forms (trackers, command-trackers, targets, template/command
  configs).
- Telegram target disable_url_preview defaults to true.
- BlockedByModal wired into 8 deletion flows; fetchAuth helper for
  multipart/binary calls (reuses api()'s refresh + ApiError mapping).
- Immich tracker 'Checking links' parallelised (concurrency cap 6).
- Backup page: pending-restore banner + Apply-now / Apply-later modal,
  restarting overlay polling /api/health, manual 'Create backup' button.
- Command-trackers listener row gets an 'Edit album scope' modal with
  inherit/explicit multiselect.
- Users page: Edit user modal (username + role).
- parseDate helper for consistent UTC date rendering.

Migrations / schema
- event_log: + user_id, action_id, action_name (+ backfill user_id from
  notification_tracker).
- command_tracker_listener: + allowed_album_ids.

frontend/src/routes/command-trackers/+page.svelte

@@ -11,6 +11,7 @@
 	import MdiIcon from '$lib/components/MdiIcon.svelte';
 	import EmptyState from '$lib/components/EmptyState.svelte';
 	import ConfirmModal from '$lib/components/ConfirmModal.svelte';
+	import Modal from '$lib/components/Modal.svelte';
 	import IconButton from '$lib/components/IconButton.svelte';
 	import CrossLink from '$lib/components/CrossLink.svelte';
 	import EntitySelect from '$lib/components/EntitySelect.svelte';
@@ -83,7 +84,17 @@
 		finally { loaded = true; highlightFromUrl(); }
 	}
 
-	function openNew() { form = defaultForm(); editing = null; showForm = true; }
+	function openNew() {
+		form = defaultForm();
+		if (providers.length > 0) form.provider_id = providers[0].id;
+		const ptype = providers.find(p => p.id === form.provider_id)?.type || '';
+		if (ptype) {
+			const firstCfg = commandConfigs.find(c => c.provider_type === ptype);
+			if (firstCfg) form.command_config_id = firstCfg.id;
+		}
+		editing = null;
+		showForm = true;
+	}
 	function editTracker(trk: any) {
 		form = {
 			name: trk.name,
@@ -178,6 +189,35 @@
 		} catch (err: any) { snackError(err.message); }
 	}
 
+	// Per-listener album scope editing
+	let scopeEditor = $state<{ trkId: number; listener: any; providerId: number; collections: any[]; selectedIds: string[]; inherit: boolean } | null>(null);
+	async function openScopeEditor(trkId: number, listener: any) {
+		const trk = allCmdTrackers.find((t: any) => t.id === trkId);
+		if (!trk) return;
+		let collections: any[] = [];
+		try { collections = await api(`/providers/${trk.provider_id}/collections`); } catch { /* ignore */ }
+		scopeEditor = {
+			trkId,
+			listener,
+			providerId: trk.provider_id,
+			collections,
+			selectedIds: [...(listener.allowed_album_ids || [])],
+			inherit: listener.allowed_album_ids === null || listener.allowed_album_ids === undefined,
+		};
+	}
+	async function saveScope() {
+		if (!scopeEditor) return;
+		const body = { allowed_album_ids: scopeEditor.inherit ? null : scopeEditor.selectedIds };
+		try {
+			await api(`/command-trackers/${scopeEditor.trkId}/listeners/${scopeEditor.listener.id}`, {
+				method: 'PATCH', body: JSON.stringify(body),
+			});
+			snackSuccess(t('snack.listenerScopeSaved'));
+			await loadListeners(scopeEditor.trkId);
+			scopeEditor = null;
+		} catch (err: any) { snackError(err.message); }
+	}
+
 	function providerName(id: number): string {
 		return providers.find(p => p.id === id)?.name || '?';
 	}
@@ -289,10 +329,18 @@
 							<div class="space-y-1">
 								{#each listeners[trk.id] as listener}
 									<div class="flex items-center justify-between text-sm px-2 py-1 rounded hover:bg-[var(--color-muted)]">
-										<div class="flex items-center gap-2">
+										<div class="flex items-center gap-2 min-w-0">
 											<MdiIcon name="mdiRobot" size={14} />
 											<CrossLink href="/bots?tab=telegram" icon="mdiRobot" label={listener.name || listener.listener_type} entityId={listener.listener_id} />
 											<span class="text-xs px-1.5 py-0.5 rounded bg-[var(--color-primary)]/10 text-[var(--color-primary)] font-mono">{listener.listener_type}</span>
+											<button type="button" onclick={() => openScopeEditor(trk.id, listener)}
+												class="flex items-center gap-1 text-xs px-1.5 py-0.5 rounded border border-[var(--color-border)] text-[var(--color-muted-foreground)] hover:bg-[var(--color-muted)]"
+												title={t('commandTracker.editScope')}>
+												<MdiIcon name="mdiImageMultiple" size={12} />
+												{listener.allowed_album_ids === null || listener.allowed_album_ids === undefined
+													? t('commandTracker.scopeAll')
+													: `${(listener.allowed_album_ids || []).length} ${t('commandTracker.albumsShort')}`}
+											</button>
 										</div>
 										<IconButton icon="mdiClose" title={t('commandTracker.removeListener')} size={14}
 											onclick={() => removeListener(trk.id, listener.id)} variant="danger" />
@@ -321,3 +369,59 @@
 
 <ConfirmModal open={confirmDelete !== null} message={t('commandTracker.confirmDelete')}
 	onconfirm={() => confirmDelete?.onconfirm()} oncancel={() => confirmDelete = null} />
+
+<!-- Per-listener album scope editor -->
+<Modal open={scopeEditor !== null} title={t('commandTracker.scopeTitle')} onclose={() => scopeEditor = null}>
+	{#if scopeEditor}
+		<p class="text-xs text-[var(--color-muted-foreground)] mb-3">{t('commandTracker.scopeDescription')}</p>
+		<label class="flex items-center gap-2 text-sm mb-3">
+			<input type="checkbox" bind:checked={scopeEditor.inherit} />
+			{t('commandTracker.scopeInherit')}
+		</label>
+		{#if !scopeEditor.inherit}
+			{#if scopeEditor.collections.length > 0}
+				<div class="flex items-center justify-between mb-1.5 text-xs" style="color: var(--color-muted-foreground);">
+					<span>{scopeEditor.selectedIds.length} / {scopeEditor.collections.length}</span>
+					<div class="flex items-center gap-2">
+						<button type="button" class="underline hover:text-[var(--color-primary)]"
+							onclick={() => { if (scopeEditor) scopeEditor.selectedIds = scopeEditor.collections.map((c: any) => c.id); }}>
+							{t('backup.selectAll')}
+						</button>
+						<span aria-hidden="true">·</span>
+						<button type="button" class="underline hover:text-[var(--color-primary)]"
+							onclick={() => { if (scopeEditor) scopeEditor.selectedIds = []; }}>
+							{t('backup.deselectAll')}
+						</button>
+					</div>
+				</div>
+			{/if}
+			<div class="space-y-1 max-h-72 overflow-y-auto border border-[var(--color-border)] rounded-md p-2">
+				{#if scopeEditor.collections.length === 0}
+					<p class="text-xs text-[var(--color-muted-foreground)] py-3 text-center">{t('commandTracker.noCollections')}</p>
+				{:else}
+					{#each scopeEditor.collections as col}
+						{@const cid = col.id}
+						<label class="flex items-center gap-2 text-sm px-2 py-1 rounded hover:bg-[var(--color-muted)] cursor-pointer">
+							<input type="checkbox" checked={scopeEditor.selectedIds.includes(cid)}
+								onchange={(e) => {
+									if (!scopeEditor) return;
+									const target = e.target as HTMLInputElement;
+									scopeEditor.selectedIds = target.checked
+										? [...scopeEditor.selectedIds, cid]
+										: scopeEditor.selectedIds.filter((i) => i !== cid);
+								}} />
+							<span class="truncate min-w-0 flex-1" title={col.albumName || col.name || cid}>{col.albumName || col.name || cid}</span>
+						</label>
+					{/each}
+				{/if}
+			</div>
+		{/if}
+		<div class="flex gap-2 justify-end mt-4">
+			<button onclick={() => scopeEditor = null}
+				class="px-3 py-1.5 text-sm rounded-md border border-[var(--color-border)] hover:bg-[var(--color-muted)] transition-colors">
+				{t('common.cancel')}
+			</button>
+			<Button size="sm" onclick={saveScope}>{t('common.save')}</Button>
+		</div>
+	{/if}
+</Modal>