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>

docker-compose.yml

@@ -0,0 +1,54 @@
+services:
+  db:
+    image: postgres:17-alpine
+    container_name: purrse-db
+    environment:
+      POSTGRES_DB: purrse
+      POSTGRES_USER: purrse
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-purrse_dev}
+    ports:
+      - "5433:5432"
+    volumes:
+      - purrse-db-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U purrse"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  api:
+    build:
+      context: .
+      dockerfile: src/Purrse.Api/Dockerfile
+    container_name: purrse-api
+    environment:
+      - ConnectionStrings__DefaultConnection=Host=db;Port=5432;Database=purrse;Username=purrse;Password=${DB_PASSWORD:-purrse_dev}
+      - Jwt__Key=${JWT_KEY:-PurrseDefaultSecretKey_ChangeInProduction_AtLeast32Chars!}
+      - Jwt__Issuer=Purrse
+      - Jwt__Audience=Purrse
+      - Cors__Origins__0=http://localhost:8080
+      - Plugins__Path=/app/plugins
+      - Imports__WatchPath=/app/imports
+    ports:
+      - "5000:8080"
+    volumes:
+      - purrse-plugins:/app/plugins
+      - purrse-imports:/app/imports
+    depends_on:
+      db:
+        condition: service_healthy
+
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile
+    container_name: purrse-frontend
+    ports:
+      - "8080:80"
+    depends_on:
+      - api
+
+volumes:
+  purrse-db-data:
+  purrse-plugins:
+  purrse-imports: