feat(mobile): add Pulse social feed tab

mobile/ios/Podfile.lock

@@ -2,8 +2,9 @@ PODS:
   - connectivity_plus (0.0.1):
     - Flutter
   - Flutter (1.0.0)
-  - flutter_secure_storage (6.0.0):
+  - flutter_secure_storage_darwin (10.0.0):
     - Flutter
+    - FlutterMacOS
   - image_picker_ios (0.0.1):
     - Flutter
   - mobile_scanner (7.0.0):
@@ -23,7 +24,7 @@ PODS:
 DEPENDENCIES:
   - connectivity_plus (from `.symlinks/plugins/connectivity_plus/ios`)
   - Flutter (from `Flutter`)
-  - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)
+  - flutter_secure_storage_darwin (from `.symlinks/plugins/flutter_secure_storage_darwin/darwin`)
   - image_picker_ios (from `.symlinks/plugins/image_picker_ios/ios`)
   - mobile_scanner (from `.symlinks/plugins/mobile_scanner/darwin`)
   - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
@@ -36,8 +37,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/connectivity_plus/ios"
   Flutter:
     :path: Flutter
-  flutter_secure_storage:
-    :path: ".symlinks/plugins/flutter_secure_storage/ios"
+  flutter_secure_storage_darwin:
+    :path: ".symlinks/plugins/flutter_secure_storage_darwin/darwin"
   image_picker_ios:
     :path: ".symlinks/plugins/image_picker_ios/ios"
   mobile_scanner:
@@ -54,7 +55,7 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   connectivity_plus: cb623214f4e1f6ef8fe7403d580fdad517d2f7dd
   Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
-  flutter_secure_storage: 1ed9476fba7e7a782b22888f956cce43e2c62f13
+  flutter_secure_storage_darwin: acdb3f316ed05a3e68f856e0353b133eec373a23
   image_picker_ios: e0ece4aa2a75771a7de3fa735d26d90817041326
   mobile_scanner: 9157936403f5a0644ca3779a38ff8404c5434a93
   package_info_plus: af8e2ca6888548050f16fa2f1938db7b5a5df499

mobile/lib/features/home/home_page.dart

@@ -5,6 +5,7 @@ import 'package:lucide_icons_flutter/lucide_icons.dart';
 
 import '../activity/activity_page.dart';
 import '../channels/channels_page.dart';
+import '../pulse/pulse_page.dart';
 import '../search/search_page.dart';
 
 class HomePage extends HookConsumerWidget {
@@ -14,7 +15,7 @@ class HomePage extends HookConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final tabIndex = useState(0);
 
-    const pages = [ChannelsPage(), ActivityPage(), SearchPage()];
+    const pages = [ChannelsPage(), PulsePage(), ActivityPage(), SearchPage()];
 
     return Scaffold(
       body: IndexedStack(index: tabIndex.value, children: pages),
@@ -27,6 +28,11 @@ class HomePage extends HookConsumerWidget {
             selectedIcon: Icon(LucideIcons.house),
             label: 'Home',
           ),
+          NavigationDestination(
+            icon: Icon(LucideIcons.radio),
+            selectedIcon: Icon(LucideIcons.radio),
+            label: 'Pulse',
+          ),
           NavigationDestination(
             icon: Icon(LucideIcons.bell),
             selectedIcon: Icon(LucideIcons.bell),

mobile/lib/features/pulse/agent_activity_card.dart

@@ -0,0 +1,190 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart';
+
+import '../../shared/theme/theme.dart';
+import '../profile/user_cache_provider.dart';
+import 'note_card.dart';
+import 'pulse_models.dart';
+
+class AgentActivityCard extends HookConsumerWidget {
+  final AgentNoteGroup group;
+  final Map<String, PulseReactionState> reactions;
+  final VoidCallback? onReactionChanged;
+
+  const AgentActivityCard({
+    super.key,
+    required this.group,
+    required this.reactions,
+    this.onReactionChanged,
+  });
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final expanded = useState(group.notes.length == 1);
+    final profile =
+        ref.watch(userCacheProvider.select((cache) => cache[group.pubkey])) ??
+        ref.read(userCacheProvider.notifier).get(group.pubkey);
+    final name = profile?.label ?? _shortPubkey(group.pubkey);
+
+    return Container(
+      decoration: BoxDecoration(
+        color: context.colors.surfaceContainerHighest.withValues(alpha: 0.6),
+        borderRadius: BorderRadius.circular(Radii.lg),
+        border: Border.all(
+          color: context.colors.primary.withValues(alpha: 0.22),
+        ),
+      ),
+      child: Column(
+        children: [
+          InkWell(
+            onTap: group.notes.length > 1
+                ? () => expanded.value = !expanded.value
+                : null,
+            borderRadius: const BorderRadius.vertical(
+              top: Radius.circular(Radii.lg),
+            ),
+            child: Padding(
+              padding: const EdgeInsets.all(Grid.twelve),
+              child: Row(
+                children: [
+                  Stack(
+                    children: [
+                      CircleAvatar(
+                        radius: 18,
+                        backgroundColor: context.colors.primaryContainer,
+                        backgroundImage: profile?.avatarUrl != null
+                            ? NetworkImage(profile!.avatarUrl!)
+                            : null,
+                        child: profile?.avatarUrl == null
+                            ? const Icon(LucideIcons.bot, size: 18)
+                            : null,
+                      ),
+                      Positioned(
+                        right: 0,
+                        bottom: 0,
+                        child: Container(
+                          width: 10,
+                          height: 10,
+                          decoration: BoxDecoration(
+                            color: context.appColors.success,
+                            shape: BoxShape.circle,
+                            border: Border.all(
+                              color: context.colors.surfaceContainerHighest,
+                              width: 1.5,
+                            ),
+                          ),
+                        ),
+                      ),
+                    ],
+                  ),
+                  const SizedBox(width: Grid.xs),
+                  Expanded(
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Row(
+                          children: [
+                            Flexible(
+                              child: Text(
+                                name,
+                                overflow: TextOverflow.ellipsis,
+                                style: context.textTheme.labelLarge?.copyWith(
+                                  fontWeight: FontWeight.w700,
+                                ),
+                              ),
+                            ),
+                            const SizedBox(width: Grid.half),
+                            Container(
+                              padding: const EdgeInsets.symmetric(
+                                horizontal: Grid.half,
+                                vertical: 2,
+                              ),
+                              decoration: BoxDecoration(
+                                color: context.colors.primary.withValues(
+                                  alpha: 0.12,
+                                ),
+                                borderRadius: BorderRadius.circular(Radii.sm),
+                              ),
+                              child: Text(
+                                'BOT',
+                                style: context.textTheme.labelSmall?.copyWith(
+                                  color: context.colors.primary,
+                                  fontWeight: FontWeight.w800,
+                                  fontSize: 10,
+                                ),
+                              ),
+                            ),
+                          ],
+                        ),
+                        Text(
+                          '${group.notes.length} update${group.notes.length == 1 ? '' : 's'} · ${formatPulseRelativeTime(group.latestAt)}',
+                          style: context.textTheme.labelSmall?.copyWith(
+                            color: context.colors.onSurfaceVariant,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  if (group.notes.length > 1)
+                    Icon(
+                      expanded.value
+                          ? LucideIcons.chevronUp
+                          : LucideIcons.chevronDown,
+                      size: 18,
+                      color: context.colors.onSurfaceVariant,
+                    ),
+                ],
+              ),
+            ),
+          ),
+          if (expanded.value)
+            Padding(
+              padding: const EdgeInsets.fromLTRB(Grid.xs, 0, Grid.xs, Grid.xs),
+              child: Column(
+                children: [
+                  for (final note in group.notes) ...[
+                    NoteCard(
+                      note: note,
+                      reaction:
+                          reactions[note.id] ??
+                          const PulseReactionState(
+                            count: 0,
+                            reactedByCurrentUser: false,
+                          ),
+                      isAgent: true,
+                      onReactionChanged: onReactionChanged,
+                    ),
+                    if (note != group.notes.last)
+                      const SizedBox(height: Grid.xxs),
+                  ],
+                ],
+              ),
+            )
+          else
+            Padding(
+              padding: const EdgeInsets.fromLTRB(
+                Grid.twelve,
+                0,
+                Grid.twelve,
+                Grid.twelve,
+              ),
+              child: Align(
+                alignment: Alignment.centerLeft,
+                child: Text(
+                  group.notes.first.content,
+                  maxLines: 2,
+                  overflow: TextOverflow.ellipsis,
+                  style: context.textTheme.bodyMedium,
+                ),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+}
+
+String _shortPubkey(String pubkey) =>
+    pubkey.length <= 8 ? pubkey : '${pubkey.substring(0, 8)}…';