feat: Sprint 0 — project scaffold, DB schema, Zustand stores, base UI components

store/useContactStore.ts

@@ -0,0 +1,42 @@
+import { create } from 'zustand';
+
+export type ContactCategory = 'Adult' | 'Teenager' | 'Kid';
+export type ContactStatus = 'Active' | 'Return Visit' | 'Bible Study' | 'Not Interested' | 'Do Not Call';
+
+export interface Contact {
+  id: string;
+  ownerId: string;
+  fullName: string;
+  address?: string;
+  householdCount: number;
+  gender?: string;
+  category: ContactCategory;
+  status: ContactStatus;
+  tags: string[];
+  notes?: string;
+  territoryCode?: string;
+  latitude?: number;
+  longitude?: number;
+  createdAt: number;
+  updatedAt: number;
+}
+
+interface ContactStore {
+  contacts: Contact[];
+  setContacts: (contacts: Contact[]) => void;
+  addContact: (contact: Contact) => void;
+  updateContact: (id: string, updates: Partial<Contact>) => void;
+  removeContact: (id: string) => void;
+}
+
+export const useContactStore = create<ContactStore>((set) => ({
+  contacts: [],
+  setContacts: (contacts) => set({ contacts }),
+  addContact: (contact) => set((state) => ({ contacts: [...state.contacts, contact] })),
+  updateContact: (id, updates) =>
+    set((state) => ({
+      contacts: state.contacts.map((c) => (c.id === id ? { ...c, ...updates } : c)),
+    })),
+  removeContact: (id) =>
+    set((state) => ({ contacts: state.contacts.filter((c) => c.id !== id) })),
+}));