feat: implement Business OS modules for proposals, invoices, and subscriptions with database schema and UI components

app/(dashboard)/business/invoices/page.tsx

@@ -0,0 +1,43 @@
+import { createClient } from "@/lib/supabase/server";
+import { InvoicesClient, type InvoiceRow } from "./invoices-client";
+
+export default async function InvoicesPage() {
+  const supabase = await createClient();
+  const { data: { user } } = await supabase.auth.getUser();
+
+  if (!user) {
+    return null;
+  }
+
+  const { data: invoicesData } = await supabase
+    .from("invoices")
+    .select(`
+      id,
+      invoice_number,
+      amount,
+      currency,
+      status,
+      issue_date,
+      due_date,
+      created_at,
+      clients ( name ),
+      projects ( name )
+    `)
+    .eq("user_id", user.id)
+    .order("created_at", { ascending: false });
+
+  const invoices: InvoiceRow[] = (invoicesData || []).map((i: any) => ({
+    id: i.id,
+    invoice_number: i.invoice_number,
+    amount: Number(i.amount),
+    currency: i.currency,
+    status: i.status,
+    issue_date: i.issue_date,
+    due_date: i.due_date,
+    created_at: i.created_at,
+    clientName: i.clients?.name || null,
+    projectName: i.projects?.name || null,
+  }));
+
+  return <InvoicesClient invoices={invoices} />;
+}