optimize post migration

frontend/src/routes/api/chat/+server.ts

@@ -1,5 +1,5 @@
-import { json } from '@sveltejs/kit';
-import { actingClient } from '$lib/server/routeAuth';
+import { json, error } from '@sveltejs/kit';
+import { createPbClient } from '$lib/server/pocketbase';
 import { createServices, type ChatActor } from '$lib/server/services';
 import type { RequestEvent } from '@sveltejs/kit';
 
@@ -15,18 +15,20 @@ export async function POST(event: RequestEvent) {
 	const body = (await event.request.json().catch(() => null)) as Body | null;
 	if (!body || !body.action) return json({ error: 'missing action' }, { status: 400 });
 
-	const { pb, famId: sessionFamId, userId, role, name, color } = actingClient(event);
+	const u = event.locals.user;
+	if (!u || !event.locals.pbToken) throw error(401, 'Unauthorized');
+	const pb = createPbClient(event.locals.pbToken);
 	const actor: ChatActor = {
-		id: userId,
-		type: role === 'parent' ? 'admin' : 'member',
-		name,
-		color
+		id: u.id,
+		type: u.role === 'parent' ? 'admin' : 'member',
+		name: u.name,
+		color: u.color || '#6366f1'
 	};
-	const famId = body.famId || sessionFamId || '';
+	const famId = body.famId || u.famId || '';
 	if (!famId) return json({ error: 'famId required' }, { status: 400 });
 
 	try {
-		const s = createServices(pb, { id: userId, role });
+		const s = createServices(pb, { id: u.id, role: u.role });
 		const data =
 			body.action === 'typing'
 				? await s.chat.typing(famId, actor, { typing: Boolean(body.typing) })