Add year in review feature to web UI (#32709)

app/javascript/mastodon/models/annual_report.ts

@@ -0,0 +1,44 @@
+export interface Percentiles {
+  followers: number;
+  statuses: number;
+}
+
+export interface NameAndCount {
+  name: string;
+  count: number;
+}
+
+export interface TimeSeriesMonth {
+  month: number;
+  statuses: number;
+  following: number;
+  followers: number;
+}
+
+export interface TopStatuses {
+  by_reblogs: number;
+  by_favourites: number;
+  by_replies: number;
+}
+
+export type Archetype =
+  | 'lurker'
+  | 'booster'
+  | 'pollster'
+  | 'replier'
+  | 'oracle';
+
+interface AnnualReportV1 {
+  most_used_apps: NameAndCount[];
+  percentiles: Percentiles;
+  top_hashtags: NameAndCount[];
+  top_statuses: TopStatuses;
+  time_series: TimeSeriesMonth[];
+  archetype: Archetype;
+}
+
+export interface AnnualReport {
+  year: number;
+  schema_version: number;
+  data: AnnualReportV1;
+}