diff --git a/apps/mana/apps/web/src/lib/content/help/index.ts b/apps/mana/apps/web/src/lib/content/help/index.ts
index 8e1f26dda..8f53af6f4 100644
--- a/apps/mana/apps/web/src/lib/content/help/index.ts
+++ b/apps/mana/apps/web/src/lib/content/help/index.ts
@@ -2,7 +2,7 @@
  * Help content for Mana app — reads from i18n locale files.
  */
 
-import type { HelpContent } from '@mana/help';
+import type { HelpContent, SupportedLanguage } from '@mana/help';
 import { getPrivacyFAQs } from '@mana/help';
 import { get } from 'svelte/store';
 import { _, locale } from 'svelte-i18n';
@@ -11,8 +11,17 @@ function t(key: string): string {
 	return get(_)(key) || key;
 }
 
+const SUPPORTED: readonly SupportedLanguage[] = ['en', 'de', 'fr', 'it', 'es'];
+
+function asSupportedLanguage(loc: string | null | undefined): SupportedLanguage {
+	if (loc && (SUPPORTED as readonly string[]).includes(loc)) {
+		return loc as SupportedLanguage;
+	}
+	return 'de';
+}
+
 export function getManaHelpContent(loc?: string): HelpContent {
-	const currentLocale = loc || get(locale) || 'de';
+	const currentLocale = asSupportedLanguage(loc || get(locale));
 
 	return {
 		faq: [
diff --git a/packages/help/src/components/ChangelogEntry.svelte b/packages/help/src/components/ChangelogEntry.svelte
index 642faf8f7..7ed80a684 100644
--- a/packages/help/src/components/ChangelogEntry.svelte
+++ b/packages/help/src/components/ChangelogEntry.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { ChangelogEntryProps } from '../types.js';
+	import type { ChangelogEntryProps } from '../ui-types';
 
 	let { item, translations }: ChangelogEntryProps = $props();
 
diff --git a/packages/help/src/components/ChangelogSection.svelte b/packages/help/src/components/ChangelogSection.svelte
index 2bd921053..34b180095 100644
--- a/packages/help/src/components/ChangelogSection.svelte
+++ b/packages/help/src/components/ChangelogSection.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { ChangelogSectionProps } from '../types.js';
+	import type { ChangelogSectionProps } from '../ui-types';
 	import ChangelogEntry from './ChangelogEntry.svelte';
 
 	let { items, translations, maxItems = 10 }: ChangelogSectionProps = $props();
diff --git a/packages/help/src/components/ContactSection.svelte b/packages/help/src/components/ContactSection.svelte
index d22bbf656..cf4e51f31 100644
--- a/packages/help/src/components/ContactSection.svelte
+++ b/packages/help/src/components/ContactSection.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { ContactSectionProps } from '../types.js';
+	import type { ContactSectionProps } from '../ui-types';
 
 	let { contact, translations }: ContactSectionProps = $props();
 </script>
diff --git a/packages/help/src/components/FAQItem.svelte b/packages/help/src/components/FAQItem.svelte
index 7bc782688..7e40820e5 100644
--- a/packages/help/src/components/FAQItem.svelte
+++ b/packages/help/src/components/FAQItem.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { FAQItem } from './content';
+	import type { FAQItem } from '../content';
 
 	interface Props {
 		item: FAQItem;
diff --git a/packages/help/src/components/FAQSection.svelte b/packages/help/src/components/FAQSection.svelte
index 8124a4074..e21c46a93 100644
--- a/packages/help/src/components/FAQSection.svelte
+++ b/packages/help/src/components/FAQSection.svelte
@@ -1,6 +1,6 @@
 <script lang="ts">
-	import type { FAQItem, FAQCategory } from './content';
-	import type { FAQSectionProps } from '../types.js';
+	import type { FAQItem, FAQCategory } from '../content';
+	import type { FAQSectionProps } from '../ui-types';
 	import FAQItemComponent from './FAQItem.svelte';
 
 	let {
diff --git a/packages/help/src/components/FeatureCard.svelte b/packages/help/src/components/FeatureCard.svelte
index 91010bf72..8ff6041ac 100644
--- a/packages/help/src/components/FeatureCard.svelte
+++ b/packages/help/src/components/FeatureCard.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { FeatureItem } from './content';
+	import type { FeatureItem } from '../content';
 
 	interface Props {
 		item: FeatureItem;
diff --git a/packages/help/src/components/FeaturesOverview.svelte b/packages/help/src/components/FeaturesOverview.svelte
index c45d4570a..29c9ba9ab 100644
--- a/packages/help/src/components/FeaturesOverview.svelte
+++ b/packages/help/src/components/FeaturesOverview.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { FeaturesOverviewProps } from '../types.js';
+	import type { FeaturesOverviewProps } from '../ui-types';
 	import FeatureCard from './FeatureCard.svelte';
 
 	let { items, translations }: FeaturesOverviewProps = $props();
diff --git a/packages/help/src/components/GettingStartedGuide.svelte b/packages/help/src/components/GettingStartedGuide.svelte
index f4a046071..bb14cfbff 100644
--- a/packages/help/src/components/GettingStartedGuide.svelte
+++ b/packages/help/src/components/GettingStartedGuide.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { GettingStartedGuideProps } from '../types.js';
+	import type { GettingStartedGuideProps } from '../ui-types';
 
 	let { items, translations }: GettingStartedGuideProps = $props();
 
diff --git a/packages/help/src/components/HelpSearch.svelte b/packages/help/src/components/HelpSearch.svelte
index e56c9f58e..e387eaf10 100644
--- a/packages/help/src/components/HelpSearch.svelte
+++ b/packages/help/src/components/HelpSearch.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { HelpSearchProps } from '../types.js';
+	import type { HelpSearchProps } from '../ui-types';
 	import type { SearchResult } from '../content';
 	import { createSearcher } from '../search-engine';
 
diff --git a/packages/help/src/components/KeyboardShortcuts.svelte b/packages/help/src/components/KeyboardShortcuts.svelte
index f56e041cd..ceeccccdd 100644
--- a/packages/help/src/components/KeyboardShortcuts.svelte
+++ b/packages/help/src/components/KeyboardShortcuts.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { KeyboardShortcutsProps } from '../types.js';
+	import type { KeyboardShortcutsProps } from '../ui-types';
 
 	let { items, translations }: KeyboardShortcutsProps = $props();