feat(vocab): add dashboard learning summary and related endpoints

- Introduced `getDashboardLearningSummary` method in `VocabService` to provide a compact overview of enrolled courses and current lessons for users.
- Updated `vocabController` to include a new route for the dashboard widget, allowing users to access their learning summary.
- Enhanced `vocabRouter` to route requests for the new dashboard widget endpoint.
- Added localization support for the new dashboard features across multiple languages, improving user engagement and accessibility.
- Updated UI components to integrate the new dashboard widget, ensuring a seamless user experience.

frontend/src/views/falukant/PoliticsView.vue

@@ -25,9 +25,11 @@
                             </span>
                             <span>
                                 {{ $t('falukant.politics.current.benefit') }}:
-                                <template v-if="pos.benefit && pos.benefit.length">
-                                    <span v-if="pos.benefit.includes('*')">{{ $t('falukant.politics.current.benefit_all') }}</span>
-                                    <span v-else>{{ pos.benefit.join(', ') }}</span>
+                                <template v-if="politicsBenefitItems(pos).length">
+                                    <template v-for="(b, i) in politicsBenefitItems(pos)" :key="i">
+                                        <span>{{ formatPoliticsBenefitItem(b) }}</span>
+                                        <span v-if="i < politicsBenefitItems(pos).length - 1">, </span>
+                                    </template>
                                 </template>
                                 <template v-else>—</template>
                             </span>
@@ -178,6 +180,49 @@ export default {
         this.loadCurrentPositions();
     },
     methods: {
+        politicsBenefitItems(pos) {
+            const raw = pos?.benefit;
+            if (!Array.isArray(raw) || !raw.length) {
+                return [];
+            }
+            if (raw.every((x) => typeof x === 'string') && raw.includes('*')) {
+                return [this.$t('falukant.politics.current.benefit_all')];
+            }
+            return raw;
+        },
+
+        formatPoliticsRegionLevel(key) {
+            const k = String(key || '');
+            const path = `falukant.politics.regionLevels.${k}`;
+            const t = this.$t(path);
+            return t !== path ? t : k;
+        },
+
+        formatPoliticsBenefitItem(b) {
+            if (b == null) {
+                return '';
+            }
+            if (typeof b === 'string') {
+                return b;
+            }
+            if (typeof b === 'object' && b.tr) {
+                if (b.tr === 'tax_exemption' && b.params?.all) {
+                    return this.$t('falukant.politics.benefits.tax_exemption_all');
+                }
+                if (b.tr === 'tax_exemption' && Array.isArray(b.params?.regions)) {
+                    const labels = b.params.regions.map((r) => this.formatPoliticsRegionLevel(r)).join(', ');
+                    return this.$t('falukant.politics.benefits.tax_exemption', { regions: labels });
+                }
+                if (b.tr === 'daily_salary') {
+                    return this.$t('falukant.politics.benefits.daily_salary', { amount: b.params?.amount ?? '—' });
+                }
+                if (b.tr === 'generic_benefit') {
+                    return this.$t('falukant.politics.benefits.generic', { code: b.params?.code || '' });
+                }
+            }
+            return String(b);
+        },
+
         onTabChange(tab) {
             if (tab === 'current') {
                 this.loadCurrentPositions();

frontend/src/views/home/LoggedInView.vue

@@ -192,7 +192,8 @@ export default {
         '/api/news': 'home.dashboard.widgetLabels.news',
         '/api/calendar/widget/birthdays': 'home.dashboard.widgetLabels.birthdays',
         '/api/calendar/widget/upcoming': 'home.dashboard.widgetLabels.upcoming',
-        '/api/calendar/widget/mini': 'home.dashboard.widgetLabels.calendar'
+        '/api/calendar/widget/mini': 'home.dashboard.widgetLabels.calendar',
+        '/api/vocab/dashboard-widget': 'home.dashboard.widgetLabels.vocabCourses'
       }[endpoint];
       return key ? this.$t(key) : fallbackLabel;
     },
@@ -211,7 +212,8 @@ export default {
         'News',
         'Geburtstage',
         'Nächste Termine',
-        'Kalender'
+        'Kalender',
+        'Sprachkurse'
       ];
       return {
         ...widget,