feat: test menu dropdown, split text/media messages, target settings, provider URL links

- Replace 3 test buttons with unified dropdown menu (basic/periodic/scheduled/memory)
- Send text message first, then assets as reply (not combined caption+media)
- Pass all target config settings to Telegram client (disable_url_preview, max_media, chunk_delay, etc.)
- Real data test notifications for periodic/scheduled/memory (fetch from Immich)
- Provider card URL is now a clickable hyperlink
- Localized test type labels (EN/RU)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -176,13 +176,23 @@
 		} catch (err: any) { error = err.message; snackError(err.message); }
 		confirmDelete = null;
 	}
+	let testMenuOpen = $state<string | null>(null);
+	let testMenuStyle = $state('');
+
+	const testTypes = [
+		{ key: 'basic', icon: 'mdiSend', labelKey: 'trackers.testBasic' },
+		{ key: 'periodic', icon: 'mdiCalendarClock', labelKey: 'trackers.testPeriodic' },
+		{ key: 'scheduled', icon: 'mdiImageMultiple', labelKey: 'trackers.testScheduled' },
+		{ key: 'memory', icon: 'mdiHistory', labelKey: 'trackers.testMemory' },
+	];
+
 	async function testTrackerTarget(trackerId: number, ttId: number, testType: string) {
+		testMenuOpen = null;
 		const key = `${ttId}_${testType}`;
 		if (ttTesting[key]) return;
 		ttTesting = { ...ttTesting, [key]: testType };
 		try {
-			const endpoint = testType === 'basic' ? 'test' : `test-${testType}`;
-			await api(`/trackers/${trackerId}/targets/${ttId}/${endpoint}?locale=${getLocale()}`, { method: 'POST' });
+			await api(`/trackers/${trackerId}/targets/${ttId}/test/${testType}?locale=${getLocale()}`, { method: 'POST' });
 			snackSuccess(t('snack.targetTestSent'));
 		} catch (err: any) {
 			snackError(err.message);
@@ -190,6 +200,13 @@
 			ttTesting = { ...ttTesting, [key]: '' };
 		}
 	}
+
+	function openTestMenu(ttId: number, event: MouseEvent) {
+		const btn = event.currentTarget as HTMLElement;
+		const rect = btn.getBoundingClientRect();
+		testMenuStyle = `position:fixed; z-index:9999; top:${rect.bottom + 4}px; right:${window.innerWidth - rect.right}px;`;
+		testMenuOpen = testMenuOpen === String(ttId) ? null : String(ttId);
+	}
 	function toggleCollection(collectionId: string) { form.collection_ids = form.collection_ids.includes(collectionId) ? form.collection_ids.filter(id => id !== collectionId) : [...form.collection_ids, collectionId]; }
 
 	function formatDate(dateStr: string): string {
@@ -390,15 +407,11 @@
 											<option value={0}>— {t('templateConfig.title')} —</option>
 											{#each templateConfigs as tc}<option value={tc.id}>{tc.name}</option>{/each}
 										</select>
-										<IconButton icon="mdiSend" size={14} title={t('common.test')}
-											onclick={() => testTrackerTarget(tracker.id, tt.id, 'basic')}
-											disabled={!!ttTesting[`${tt.id}_basic`]} />
-										<IconButton icon="mdiCalendarClock" size={14} title={t('trackingConfig.periodicSummary')}
-											onclick={() => testTrackerTarget(tracker.id, tt.id, 'periodic')}
-											disabled={!!ttTesting[`${tt.id}_periodic`]} />
-										<IconButton icon="mdiHistory" size={14} title={t('trackingConfig.memoryMode')}
-											onclick={() => testTrackerTarget(tracker.id, tt.id, 'memory')}
-											disabled={!!ttTesting[`${tt.id}_memory`]} />
+										<div class="relative">
+											<IconButton icon="mdiDotsVertical" size={14} title={t('common.test')}
+												onclick={(e: MouseEvent) => openTestMenu(tt.id, e)}
+												disabled={Object.keys(ttTesting).some(k => k.startsWith(`${tt.id}_`) && ttTesting[k])} />
+										</div>
 										<IconButton icon={tt.enabled ? 'mdiPause' : 'mdiPlay'} size={14}
 											title={tt.enabled ? t('trackers.pause') : t('trackers.resume')}
 											onclick={() => updateTargetLink(tracker.id, tt, 'enabled', !tt.enabled)} />
@@ -442,6 +455,29 @@
 {/if}
 {/if}
 
+{#if testMenuOpen}
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<div style="position:fixed; top:0; left:0; right:0; bottom:0; z-index:9998;"
+		onclick={() => testMenuOpen = null}
+		onkeydown={(e) => { if (e.key === 'Escape') testMenuOpen = null; }}>
+	</div>
+	<div style="{testMenuStyle} background:var(--color-card); border:1px solid var(--color-border); border-radius:0.5rem; box-shadow:0 10px 25px rgba(0,0,0,0.3); padding:0.25rem; min-width:10rem;">
+		{#each testTypes as tt}
+			{@const trackerId = trackers.find(t => t.tracker_targets?.some((x: any) => String(x.id) === testMenuOpen))?.id}
+			<button
+				onclick={() => trackerId && testTrackerTarget(trackerId, Number(testMenuOpen), tt.key)}
+				disabled={!!ttTesting[`${testMenuOpen}_${tt.key}`]}
+				class="flex items-center gap-2 w-full px-3 py-1.5 text-sm rounded hover:bg-[var(--color-muted)] transition-colors disabled:opacity-50 text-left">
+				<MdiIcon name={tt.icon} size={14} />
+				{t(tt.labelKey)}
+				{#if ttTesting[`${testMenuOpen}_${tt.key}`]}
+					<span class="ml-auto text-xs text-[var(--color-muted-foreground)]">...</span>
+				{/if}
+			</button>
+		{/each}
+	</div>
+{/if}
+
 {#if linkWarning}
 	<!-- svelte-ignore a11y_no_static_element_interactions -->
 	<div style="position:fixed; top:0; left:0; right:0; bottom:0; z-index:9998; background:rgba(0,0,0,0.5);"