feat(feed): add template card sections

flutter_app/lib/src/app_router.dart

@@ -229,6 +229,11 @@ class _HomeRoute extends StatelessWidget {
           '/chat?prompt=What%20is%20good%20at%20the%20Mensa%20today%3F',
         ),
         onOpenSchedule: () => context.go('/plan'),
+        onAskAssistant: (prompt) => context.push(
+          Uri(path: '/chat', queryParameters: <String, String>{
+            'prompt': prompt,
+          }).toString(),
+        ),
         onRefresh: controller.refreshHomeFeed,
       ),
     );

flutter_app/lib/src/feed_summary.dart

@@ -5,6 +5,8 @@ enum HomeFeedSourceStatus { fresh, stale, unavailable }
 
 enum UrgentItemSeverity { info, warning }
 
+enum FeedTemplateCardKind { schedule, highlight, email }
+
 class DailySummary {
   const DailySummary({required this.title, required this.body});
 
@@ -56,12 +58,87 @@ class HomeFeedSourceFreshness {
   }
 }
 
+class FeedScheduleCard {
+  const FeedScheduleCard({
+    required this.id,
+    required this.courseName,
+    required this.timeRange,
+    required this.hoursUntil,
+    this.type,
+    this.address,
+    this.llmSummary,
+  });
+
+  final String id;
+  final String courseName;
+  final String? type;
+  final String timeRange;
+  final int hoursUntil;
+  final String? address;
+
+  /// Template slot intentionally left for local LLM generated prep text.
+  final String? llmSummary;
+
+  String get timeToNextLabel {
+    if (hoursUntil <= 0) return 'now';
+    if (hoursUntil == 1) return '1 h';
+    return '$hoursUntil h';
+  }
+}
+
+class FeedArticleCard {
+  const FeedArticleCard({
+    required this.id,
+    required this.title,
+    required this.sourceLabel,
+    required this.body,
+    this.imageUrl,
+    this.publishedAt,
+    this.llmSummary,
+  });
+
+  final String id;
+  final String title;
+  final String sourceLabel;
+  final String body;
+  final String? imageUrl;
+  final DateTime? publishedAt;
+
+  /// Template slot intentionally left for local LLM generated summary text.
+  final String? llmSummary;
+}
+
+class FeedEmailCard {
+  const FeedEmailCard({
+    required this.id,
+    required this.subject,
+    required this.sender,
+    required this.preview,
+    this.receivedAt,
+    this.isUnread = false,
+    this.llmSummary,
+  });
+
+  final String id;
+  final String subject;
+  final String sender;
+  final String preview;
+  final DateTime? receivedAt;
+  final bool isUnread;
+
+  /// Template slot intentionally left for local LLM extracted action items.
+  final String? llmSummary;
+}
+
 class HomeFeedSnapshot {
   const HomeFeedSnapshot({
     required this.summary,
     required this.nextAction,
     required this.urgentItems,
     required this.sources,
+    required this.todaySchedule,
+    required this.highlights,
+    required this.emails,
     required this.generatedAt,
   });
 
@@ -112,6 +189,7 @@ class HomeFeedSnapshot {
         now: now,
       ),
     );
+    final todaySchedule = _scheduleCardsFor(timetable: timetable, now: now);
 
     return HomeFeedSnapshot(
       summary: summary,
@@ -120,6 +198,9 @@ class HomeFeedSnapshot {
       sources: List<HomeFeedSourceFreshness>.unmodifiable(
         _sourcesFor(timetable: timetable, memoryText: memoryText, now: now),
       ),
+      todaySchedule: List<FeedScheduleCard>.unmodifiable(todaySchedule),
+      highlights: const <FeedArticleCard>[],
+      emails: const <FeedEmailCard>[],
       generatedAt: now,
     );
   }
@@ -128,6 +209,9 @@ class HomeFeedSnapshot {
   final NextAction nextAction;
   final List<UrgentItem> urgentItems;
   final List<HomeFeedSourceFreshness> sources;
+  final List<FeedScheduleCard> todaySchedule;
+  final List<FeedArticleCard> highlights;
+  final List<FeedEmailCard> emails;
   final DateTime generatedAt;
 
   bool get hasUrgentItems => urgentItems.isNotEmpty;
@@ -136,6 +220,44 @@ class HomeFeedSnapshot {
   String get generatedAtLabel => _time(generatedAt);
 }
 
+List<FeedScheduleCard> _scheduleCardsFor({
+  required TimetableSnapshot? timetable,
+  required DateTime now,
+}) {
+  final events = timetable?.eventsOn(now) ?? const <LectureEvent>[];
+  return events.map((event) {
+    final hoursUntil = event.start.isAfter(now)
+        ? (event.start.difference(now).inMinutes / 60).ceil()
+        : 0;
+    return FeedScheduleCard(
+      id: event.id,
+      courseName: event.title,
+      type: _lectureType(event.detail),
+      timeRange: event.timeRangeText,
+      hoursUntil: hoursUntil,
+      address: event.location,
+      llmSummary: null,
+    );
+  }).toList()..sort((a, b) {
+    final hours = a.hoursUntil.compareTo(b.hoursUntil);
+    if (hours != 0) return hours;
+    return a.courseName.compareTo(b.courseName);
+  });
+}
+
+String? _lectureType(String? detail) {
+  final normalized = detail?.toLowerCase();
+  if (normalized == null || normalized.isEmpty) return null;
+  if (normalized.contains('tutorial') || normalized.contains('übung')) {
+    return 'Tutorial';
+  }
+  if (normalized.contains('lecture') || normalized.contains('vorlesung')) {
+    return 'Lecture';
+  }
+  if (normalized.contains('seminar')) return 'Seminar';
+  return null;
+}
+
 class FeedMessage {
   const FeedMessage({required this.title, required this.body});
 

flutter_app/lib/src/views/home_view.dart

@@ -20,6 +20,7 @@ class HomeView extends StatelessWidget {
     required this.onOpenMaps,
     required this.onOpenCampus,
     required this.onOpenSchedule,
+    required this.onAskAssistant,
     required this.onRefresh,
     super.key,
   });
@@ -37,6 +38,7 @@ class HomeView extends StatelessWidget {
   final VoidCallback onOpenMaps;
   final VoidCallback onOpenCampus;
   final VoidCallback onOpenSchedule;
+  final ValueChanged<String> onAskAssistant;
   final Future<void> Function() onRefresh;
 
   @override
@@ -54,7 +56,11 @@ class HomeView extends StatelessWidget {
           const SizedBox(height: StudyOsSpacing.xxl),
           _SectionLabel(label: 'For you'),
           const SizedBox(height: StudyOsSpacing.sm),
-          ProactiveFeedSection(snapshot: snapshot, onRefresh: onRefresh),
+          ProactiveFeedSection(
+            snapshot: snapshot,
+            onRefresh: onRefresh,
+            onAskAssistant: onAskAssistant,
+          ),
           const SizedBox(height: StudyOsSpacing.xxl),
           _SectionLabel(label: 'StudyOS'),
           const SizedBox(height: StudyOsSpacing.sm),