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>

src/Purrse.Core/Interfaces/Services/IScheduledTransactionService.cs

@@ -0,0 +1,15 @@
+using Purrse.Core.DTOs;
+
+namespace Purrse.Core.Interfaces.Services;
+
+public interface IScheduledTransactionService
+{
+    Task<List<ScheduledTransactionResponse>> GetAllAsync(Guid userId);
+    Task<ScheduledTransactionResponse?> GetByIdAsync(Guid userId, Guid id);
+    Task<ScheduledTransactionResponse> CreateAsync(Guid userId, CreateScheduledTransactionRequest request);
+    Task<ScheduledTransactionResponse> UpdateAsync(Guid userId, Guid id, UpdateScheduledTransactionRequest request);
+    Task DeleteAsync(Guid userId, Guid id);
+    Task SkipAsync(Guid userId, Guid id);
+    Task<TransactionResponse> PostNowAsync(Guid userId, Guid id);
+    Task ProcessDueTransactionsAsync();
+}