Update fun module configuration and enhance CSS styles

- Added 'enabled' property to FunConfigSchema with a default value of true for better configuration management.
- Refactored getFunConfig to return a complete default configuration when no data is found.
- Improved globals.css by expanding CSS variables for light and dark themes, enhancing styling consistency across the application.

apps/webui/src/lib/audit.ts

@@ -0,0 +1,55 @@
+import { Prisma, type PrismaClient } from '@prisma/client';
+import type { DashboardAuditEntry } from '@nexumi/shared';
+import { prisma } from './prisma';
+
+export interface WriteDashboardAuditInput {
+  guildId?: string | null;
+  actorUserId: string;
+  action: string;
+  path?: string | null;
+  before?: unknown;
+  after?: unknown;
+}
+
+function toJsonInput(value: unknown): Prisma.InputJsonValue | undefined {
+  if (value === undefined) {
+    return undefined;
+  }
+  return JSON.parse(JSON.stringify(value)) as Prisma.InputJsonValue;
+}
+
+export async function writeDashboardAudit(
+  prisma: PrismaClient,
+  input: WriteDashboardAuditInput
+): Promise<void> {
+  await prisma.dashboardAuditLog.create({
+    data: {
+      guildId: input.guildId ?? null,
+      actorUserId: input.actorUserId,
+      action: input.action,
+      path: input.path ?? null,
+      before: toJsonInput(input.before) ?? Prisma.JsonNull,
+      after: toJsonInput(input.after) ?? Prisma.JsonNull
+    }
+  });
+}
+
+export async function listRecentDashboardAudit(
+  guildId: string,
+  limit = 10
+): Promise<DashboardAuditEntry[]> {
+  const entries = await prisma.dashboardAuditLog.findMany({
+    where: { guildId },
+    orderBy: { createdAt: 'desc' },
+    take: limit
+  });
+
+  return entries.map((entry) => ({
+    id: entry.id,
+    guildId: entry.guildId,
+    actorUserId: entry.actorUserId,
+    action: entry.action,
+    path: entry.path,
+    createdAt: entry.createdAt.toISOString()
+  }));
+}