diff --git a/internal/deployer/deployer.go b/internal/deployer/deployer.go
index 6dba55a..5518abe 100644
--- a/internal/deployer/deployer.go
+++ b/internal/deployer/deployer.go
@@ -286,6 +286,9 @@ func (d *Deployer) executeDeploy(
 	d.logDeploy(deployID, "Image pulled successfully", "info")
 
 	// Step 2: Ensure network exists.
+	if settings.Network == "" {
+		return containerID, proxyRouteID, instanceID, fmt.Errorf("docker network not configured in settings")
+	}
 	networkID, err := d.docker.EnsureNetwork(ctx, settings.Network)
 	if err != nil {
 		return containerID, proxyRouteID, instanceID, fmt.Errorf("ensure network: %w", err)
diff --git a/internal/store/store.go b/internal/store/store.go
index 47180ed..1482685 100644
--- a/internal/store/store.go
+++ b/internal/store/store.go
@@ -109,6 +109,8 @@ func (s *Store) runMigrations() error {
 		`ALTER TABLE settings ADD COLUMN traefik_cert_resolver TEXT NOT NULL DEFAULT 'letsencrypt'`,
 		`ALTER TABLE settings ADD COLUMN traefik_network TEXT NOT NULL DEFAULT ''`,
 		`ALTER TABLE settings ADD COLUMN traefik_api_url TEXT NOT NULL DEFAULT ''`,
+		// Set default network for existing databases with empty network.
+		`UPDATE settings SET network = 'docker-watcher' WHERE network = ''`,
 	}
 
 	for _, m := range migrations {
@@ -198,7 +200,7 @@ CREATE TABLE IF NOT EXISTS settings (
 	id                  INTEGER PRIMARY KEY CHECK (id = 1),
 	domain              TEXT NOT NULL DEFAULT '',
 	server_ip           TEXT NOT NULL DEFAULT '',
-	network             TEXT NOT NULL DEFAULT '',
+	network             TEXT NOT NULL DEFAULT 'docker-watcher',
 	subdomain_pattern   TEXT NOT NULL DEFAULT 'stage-{stage}-{project}',
 	notification_url    TEXT NOT NULL DEFAULT '',
 	npm_url             TEXT NOT NULL DEFAULT '',
diff --git a/web/src/lib/components/EventLogEntry.svelte b/web/src/lib/components/EventLogEntry.svelte
index d7aadf3..1475fad 100644
--- a/web/src/lib/components/EventLogEntry.svelte
+++ b/web/src/lib/components/EventLogEntry.svelte
@@ -5,13 +5,15 @@
 <script lang="ts">
 	import type { EventLogEntry } from '$lib/types';
 	import { t } from '$lib/i18n';
+	import { IconTrash } from '$lib/components/icons';
 
 	interface Props {
 		entry: EventLogEntry;
 		isNew?: boolean;
+		ondelete?: (id: number) => void;
 	}
 
-	const { entry, isNew = false }: Props = $props();
+	const { entry, isNew = false, ondelete }: Props = $props();
 
 	let expanded = $state(false);
 
@@ -82,6 +84,16 @@
 			<span class="ml-auto shrink-0 text-[var(--text-tertiary)] tabular-nums" title={formatFull(entry.created_at)}>
 				{timeAgo(entry.created_at)}
 			</span>
+			{#if ondelete}
+				<button
+					type="button"
+					title={$t('common.delete')}
+					onclick={() => ondelete(entry.id)}
+					class="shrink-0 rounded p-0.5 text-[var(--text-tertiary)] opacity-0 group-hover:opacity-100 hover:text-[var(--color-danger)] transition-all"
+				>
+					<IconTrash size={12} />
+				</button>
+			{/if}
 		</div>
 
 		<!-- Message -->
diff --git a/web/src/routes/events/+page.svelte b/web/src/routes/events/+page.svelte
index 217648a..540d507 100644
--- a/web/src/routes/events/+page.svelte
+++ b/web/src/routes/events/+page.svelte
@@ -5,7 +5,7 @@
 <script lang="ts">
 	import { onMount, onDestroy } from 'svelte';
 	import { t } from '$lib/i18n';
-	import { fetchEventLog, fetchEventLogStats, clearAllEvents } from '$lib/api';
+	import { fetchEventLog, fetchEventLogStats, clearAllEvents, deleteEvent } from '$lib/api';
 	import ConfirmDialog from '$lib/components/ConfirmDialog.svelte';
 	import { toasts } from '$lib/stores/toast';
 	import { connectGlobalEvents, type SSEConnection, type EventLogSSEPayload } from '$lib/sse';
@@ -275,6 +275,15 @@
 				<EventLogEntryComponent
 					{entry}
 					isNew={newEventIds.has(entry.id)}
+					ondelete={async (id) => {
+						try {
+							await deleteEvent(id);
+							events = events.filter(e => e.id !== id);
+							stats = { ...stats, total: Math.max(0, stats.total - 1) };
+						} catch (err) {
+							toasts.error(err instanceof Error ? err.message : 'Failed to delete event');
+						}
+					}}
 				/>
 			{/each}
 		</div>
diff --git a/web/src/routes/settings/+page.svelte b/web/src/routes/settings/+page.svelte
index 9cbc0b4..252ed0a 100644
--- a/web/src/routes/settings/+page.svelte
+++ b/web/src/routes/settings/+page.svelte
@@ -40,6 +40,28 @@
 
 	let errors = $state<Record<string, string>>({});
 
+	// Convert Go duration string (e.g., "5m", "300s", "1h") to seconds string.
+	function parseDurationToSeconds(dur: string): string {
+		if (!dur) return '60';
+		const m = dur.match(/^(\d+)(s|m|h)?$/);
+		if (!m) return dur;
+		const n = parseInt(m[1], 10);
+		switch (m[2]) {
+			case 'h': return String(n * 3600);
+			case 'm': return String(n * 60);
+			default: return String(n);
+		}
+	}
+
+	// Convert seconds to a Go duration string for the API.
+	function secondsToDuration(sec: string | number): string {
+		const n = parseInt(String(sec), 10);
+		if (isNaN(n) || n <= 0) return '60s';
+		if (n >= 3600 && n % 3600 === 0) return `${n / 3600}h`;
+		if (n >= 60 && n % 60 === 0) return `${n / 60}m`;
+		return `${n}s`;
+	}
+
 	function validateDomain(value: string): string {
 		if (!value.trim()) return '';
 		if (!/^[a-zA-Z0-9][a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}$/.test(value.trim())) return $t('validation.invalidDomain');
@@ -87,7 +109,7 @@
 			serverIp = settings.server_ip ?? '';
 			network = settings.network ?? '';
 			subdomainPattern = settings.subdomain_pattern ?? '';
-			pollingInterval = settings.polling_interval ?? '';
+			pollingInterval = parseDurationToSeconds(settings.polling_interval ?? '60');
 			baseVolumePath = settings.base_volume_path ?? '';
 			notificationUrl = settings.notification_url ?? '';
 			staleThresholdDays = String(settings.stale_threshold_days ?? 7);
@@ -116,7 +138,7 @@
 		try {
 			const payload: Record<string, unknown> = {
 				domain: domain.trim(), server_ip: serverIp.trim(), network: network.trim(),
-				subdomain_pattern: subdomainPattern.trim(), polling_interval: String(pollingInterval ?? '').trim(),
+				subdomain_pattern: subdomainPattern.trim(), polling_interval: secondsToDuration(pollingInterval),
 				base_volume_path: baseVolumePath.trim(), notification_url: notificationUrl.trim(),
 				proxy_provider: proxyProvider,
 				stale_threshold_days: Math.max(1, parseInt(staleThresholdDays, 10) || 7),