feat: add services module with AI predictions

Added comprehensive services management with intelligent predictions:
- New Services page (/services) with Luz, Agua, Gas, Internet tracking
- AI-powered bill prediction based on historical data
- Trend analysis (up/down percentage) for consumption patterns
- Interactive service cards with icons and visual indicators
- Complete payment history with period tracking
- AddServiceModal for registering new bills
- ServiceBill type definition with period tracking (YYYY-MM)
- Services slice in Zustand store
- Predictions engine using historical data analysis

🤖 Generated with [Claude Code](https://claude.com/claude-code)

lib/store/slices/servicesSlice.ts

@@ -0,0 +1,35 @@
+import { StateCreator } from 'zustand'
+import { v4 as uuidv4 } from 'uuid'
+import { ServiceBill } from '@/lib/types'
+
+export interface ServicesSlice {
+    serviceBills: ServiceBill[]
+
+    addServiceBill: (bill: Omit<ServiceBill, 'id' | 'isPaid'>) => void
+    deleteServiceBill: (id: string) => void
+    toggleServiceBillPaid: (id: string) => void
+}
+
+export const createServicesSlice: StateCreator<ServicesSlice> = (set) => ({
+    serviceBills: [],
+
+    addServiceBill: (bill) =>
+        set((state) => ({
+            serviceBills: [
+                ...state.serviceBills,
+                { ...bill, id: uuidv4(), isPaid: false },
+            ],
+        })),
+
+    deleteServiceBill: (id) =>
+        set((state) => ({
+            serviceBills: state.serviceBills.filter((b) => b.id !== id),
+        })),
+
+    toggleServiceBillPaid: (id) =>
+        set((state) => ({
+            serviceBills: state.serviceBills.map((b) =>
+                b.id === id ? { ...b, isPaid: !b.isPaid } : b
+            ),
+        })),
+})