Add comprehensive recurring payments system with scheduling

- Add RecurringPayment model with flexible scheduling options
- Implement node-cron based scheduler for payment processing
- Create API endpoints for CRUD operations on recurring payments
- Add recurring payments management UI with create/edit forms
- Integrate scheduler initialization in hooks.server.ts
- Enhance payments/add form with progressive enhancement
- Add recurring payments button to main dashboard
- Improve server-side rendering for better performance

🤖 Generated with [Claude Code](https://claude.ai/code)

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

src/hooks.server.ts

@@ -6,6 +6,10 @@ import Authentik from "@auth/core/providers/authentik"
 import { AUTHENTIK_ID, AUTHENTIK_SECRET, AUTHENTIK_ISSUER } from "$env/static/private";
 import { sequence } from "@sveltejs/kit/hooks"
 import * as auth from "./auth"
+import { initializeScheduler } from "./lib/server/scheduler"
+
+// Initialize the recurring payment scheduler
+initializeScheduler();
 
 async function authorization({ event, resolve }) {
 	// Protect any routes under /authenticated