Add tagSchema

app/soapbox/schemas/index.ts

@@ -8,6 +8,7 @@ export { groupRelationshipSchema, type GroupRelationship } from './group-relatio
 export { groupTagSchema, type GroupTag } from './group-tag';
 export { pollSchema, type Poll, type PollOption } from './poll';
 export { relationshipSchema, type Relationship } from './relationship';
+export { tagSchema, type Tag } from './tag';
 
 // Soapbox
 export { adSchema, type Ad } from './soapbox/ad';

app/soapbox/schemas/tag.ts

@@ -0,0 +1,18 @@
+import { z } from 'zod';
+
+const historySchema = z.object({
+  accounts: z.coerce.number(),
+  uses: z.coerce.number(),
+});
+
+/** // https://docs.joinmastodon.org/entities/tag */
+const tagSchema = z.object({
+  name: z.string().min(1),
+  url: z.string().url().catch(''),
+  history: z.array(historySchema).nullable().catch(null),
+  following: z.boolean().catch(false),
+});
+
+type Tag = z.infer<typeof tagSchema>;
+
+export { tagSchema, type Tag };