api: Add savedSnippets to initial snapshot

Author: PIG208

lib/api/model/initial_snapshot.dart

@@ -48,6 +48,8 @@ class InitialSnapshot {
 
   final List<RecentDmConversation> recentPrivateConversations;
 
+  final List<SavedSnippet>? savedSnippets; // TODO(server-10)
+
   final List<Subscription> subscriptions;
 
   final UnreadMessagesSnapshot unreadMsgs;
@@ -132,6 +134,7 @@ class InitialSnapshot {
     required this.serverTypingStartedWaitPeriodMilliseconds,
     required this.realmEmoji,
     required this.recentPrivateConversations,
+    required this.savedSnippets,
     required this.subscriptions,
     required this.unreadMsgs,
     required this.streams,

lib/api/model/initial_snapshot.g.dart

@@ -311,6 +311,30 @@ enum UserRole{
   }
 }
 
+/// An item in `saved_snippets` from the initial snapshot.
+///
+/// For docs, search for "saved_snippets:"
+/// in <https://zulip.com/api/register-queue>.
+@JsonSerializable(fieldRename: FieldRename.snake)
+class SavedSnippet {
+  SavedSnippet({
+    required this.id,
+    required this.title,
+    required this.content,
+    required this.dateCreated,
+  });
+
+  final int id;
+  final String title;
+  final String content;
+  final int dateCreated;
+
+  factory SavedSnippet.fromJson(Map<String, Object?> json) =>
+    _$SavedSnippetFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SavedSnippetToJson(this);
+}
+
 /// As in `streams` in the initial snapshot.
 ///
 /// Not called `Stream` because dart:async uses that name.

lib/api/model/model.dart

@@ -923,6 +923,7 @@ InitialSnapshot initialSnapshot({
   int? serverTypingStartedWaitPeriodMilliseconds,
   Map<String, RealmEmojiItem>? realmEmoji,
   List<RecentDmConversation>? recentPrivateConversations,
+  List<SavedSnippet>? savedSnippets,
   List<Subscription>? subscriptions,
   UnreadMessagesSnapshot? unreadMsgs,
   List<ZulipStream>? streams,
@@ -958,6 +959,7 @@ InitialSnapshot initialSnapshot({
       serverTypingStartedWaitPeriodMilliseconds ?? 10000,
     realmEmoji: realmEmoji ?? {},
     recentPrivateConversations: recentPrivateConversations ?? [],
+    savedSnippets: savedSnippets ?? [],
     subscriptions: subscriptions ?? [], // TODO add subscriptions to default
     unreadMsgs: unreadMsgs ?? _unreadMsgs(),
     streams: streams ?? [], // TODO add streams to default