feat: initial BudgetWise budgeting app with Appwrite sync

Full-stack PWA budgeting app installable on Android via Chrome.

Features implemented:
- Monthly balance sheet: income sources (monthly/yearly), buffer (fixed $ or % of income)
- Buckets: regular, savings-goal, and investment types with custom goals
  (amount or % of income, monthly or yearly schedule)
- Debt tracker: manual or auto-EMI (amortization formula), interest rate,
  remaining balance tracking, avalanche-method repayment suggestions
- Loan calculator: max affordable principal and EMI checker based on
  remaining income after all expenses
- Investment projections: compound interest at monthly/yearly rate,
  1/5/10-year projections per bucket
- Deposit / withdraw transactions per bucket with balance history
- Appwrite self-hosted backend: auth, 5 collections (balance_sheets,
  incomes, buckets, debts, transactions)
- scripts/setup-appwrite.cjs: one-command DB setup via node-appwrite
- PWA manifest + service worker (vite-plugin-pwa) for Android install
- Dark mobile-first UI with TailwindCSS, Zustand state, React Router v6

https://claude.ai/code/session_01Ny2EMaZYvzk5SSVDAPgxpP

package.json

@@ -0,0 +1,34 @@
+{
+  "name": "budgetwise",
+  "private": true,
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview",
+    "setup:appwrite": "node scripts/setup-appwrite.cjs"
+  },
+  "dependencies": {
+    "appwrite": "^16.0.0",
+    "date-fns": "^3.3.1",
+    "lucide-react": "^0.344.0",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.22.0",
+    "zustand": "^4.5.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.3.1",
+    "@types/react-dom": "^18.3.1",
+    "@vitejs/plugin-react": "^4.2.1",
+    "autoprefixer": "^10.4.17",
+    "node-appwrite": "^12.0.0",
+    "postcss": "^8.4.35",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5.4.0",
+    "vite": "^5.1.0",
+    "vite-plugin-pwa": "^0.19.1",
+    "workbox-window": "^7.0.0"
+  }
+}