Initial commit: HOA Financial Intelligence Platform MVP

Multi-tenant financial management platform for homeowner associations featuring:
- NestJS backend with 16 modules (auth, accounts, transactions, budgets, units,
  invoices, payments, vendors, reserves, investments, capital projects, reports)
- React + Mantine frontend with dashboard, CRUD pages, and financial reports
- Schema-per-tenant PostgreSQL isolation with JWT-based tenant resolution
- Docker Compose infrastructure (nginx, backend, frontend, postgres, redis)
- Comprehensive seed data for Sunrise Valley HOA demo
- 39 API endpoints with Swagger documentation
- Double-entry bookkeeping with journal entries
- Budget vs actual reporting and Sankey cash flow visualization

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/stores/authStore.ts

@@ -0,0 +1,67 @@
+import { create } from 'zustand';
+import { persist } from 'zustand/middleware';
+
+interface Organization {
+  id: string;
+  name: string;
+  role: string;
+  schemaName?: string;
+}
+
+interface User {
+  id: string;
+  email: string;
+  firstName: string;
+  lastName: string;
+}
+
+interface AuthState {
+  token: string | null;
+  user: User | null;
+  organizations: Organization[];
+  currentOrg: Organization | null;
+  setAuth: (token: string, user: User, organizations: Organization[]) => void;
+  setCurrentOrg: (org: Organization, token?: string) => void;
+  logout: () => void;
+}
+
+export const useAuthStore = create<AuthState>()(
+  persist(
+    (set) => ({
+      token: null,
+      user: null,
+      organizations: [],
+      currentOrg: null,
+      setAuth: (token, user, organizations) =>
+        set({
+          token,
+          user,
+          organizations,
+          // Don't auto-select org — force user through SelectOrgPage
+          currentOrg: null,
+        }),
+      setCurrentOrg: (org, token) =>
+        set((state) => ({
+          currentOrg: org,
+          token: token || state.token,
+        })),
+      logout: () =>
+        set({
+          token: null,
+          user: null,
+          organizations: [],
+          currentOrg: null,
+        }),
+    }),
+    {
+      name: 'hoa-auth',
+      version: 2,
+      migrate: () => ({
+        token: null,
+        user: null,
+        organizations: [],
+        currentOrg: null,
+      }),
+    },
+  ),
+);