refactor ai naming and make omni raw-json first

frontend/server/utils/auth.ts

@@ -64,7 +64,7 @@ export async function getAuthContext(event: H3Event): Promise<AuthContext> {
     throw createError({ statusCode: 401, statusMessage: "Unauthorized" });
   }
 
-  const conv = await prisma.chatConversation.findFirst({
+  const conv = await prisma.aiConversation.findFirst({
     where: { id: conversationId, teamId: team.id, createdByUserId: user.id },
   });
 
@@ -92,7 +92,7 @@ export async function ensureDemoAuth() {
     update: {},
     create: { teamId: team.id, userId: user.id, role: "OWNER" },
   });
-  const conv = await prisma.chatConversation.upsert({
+  const conv = await prisma.aiConversation.upsert({
     where: { id: `pilot-${team.id}` },
     update: {},
     create: { id: `pilot-${team.id}`, teamId: team.id, createdByUserId: user.id, title: "Pilot" },