Add persona schema validation to settings POST endpoint

src/routes/settings/(nav)/+server.ts

@@ -3,6 +3,17 @@ import { z } from "zod";
 import { authCondition } from "$lib/server/auth";
 import { DEFAULT_SETTINGS, type SettingsEditable } from "$lib/types/Settings";
 
+const personaSchema = z.object({
+	id: z.string().min(1),
+	name: z.string().min(1).max(100),
+	occupation: z.string().max(200).default(""),
+	stance: z.string().max(200).default(""),
+	prompt: z.string().max(10000).default(""),
+	isDefault: z.boolean(),
+	createdAt: z.coerce.date(),
+	updatedAt: z.coerce.date(),
+});
+
 export async function POST({ request, locals }) {
 	const body = await request.json();
 
@@ -13,7 +24,8 @@ export async function POST({ request, locals }) {
 				.default(DEFAULT_SETTINGS.shareConversationsWithModelAuthors),
 			welcomeModalSeen: z.boolean().optional(),
 			activeModel: z.string().default(DEFAULT_SETTINGS.activeModel),
-			customPrompts: z.record(z.string()).default({}),
+			activePersona: z.string().default(DEFAULT_SETTINGS.activePersona),
+			personas: z.array(personaSchema).min(1).default(DEFAULT_SETTINGS.personas),
 			multimodalOverrides: z.record(z.boolean()).default({}),
 			disableStream: z.boolean().default(false),
 			directPaste: z.boolean().default(false),