Initial commit: Purrse personal finance app

Self-hosted, plugin-extensible personal finance manager built with
ASP.NET Core 9.0, Vue 3 + Vuetify 3, and PostgreSQL 17.

Backend (8 .NET projects):
- Core: 19 domain models, 6 enums, 14 DTOs, 12 service interfaces
- Data: EF Core DbContext, 16 entity configurations, category seeder
- API: 14 controllers, 15 services, JWT auth, SignalR, middleware
- Plugins: Abstractions + OFX/CSV/QIF file parsers
- Tests: 28 xUnit tests (fingerprinting, duplicate detection, parsers)

Frontend (Vue 3 + Vuetify 3 + TypeScript):
- 13 views, Pinia stores, Axios API services with JWT interceptors
- Dashboard, accounts, transactions, categories, imports, and more

Deployment:
- Docker Compose (PostgreSQL 17 + .NET API + nginx frontend)
- Auto-migration on startup

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

frontend/src/services/api.ts

@@ -0,0 +1,36 @@
+import axios from 'axios'
+import { useAuthStore } from '@/stores/auth'
+import router from '@/router'
+
+const api = axios.create({
+  baseURL: '/api',
+  headers: { 'Content-Type': 'application/json' }
+})
+
+api.interceptors.request.use(config => {
+  const authStore = useAuthStore()
+  if (authStore.token) {
+    config.headers.Authorization = `Bearer ${authStore.token}`
+  }
+  return config
+})
+
+api.interceptors.response.use(
+  response => response,
+  async error => {
+    if (error.response?.status === 401) {
+      const authStore = useAuthStore()
+      try {
+        await authStore.refreshToken()
+        error.config.headers.Authorization = `Bearer ${authStore.token}`
+        return api(error.config)
+      } catch {
+        authStore.logout()
+        router.push('/login')
+      }
+    }
+    return Promise.reject(error)
+  }
+)
+
+export default api