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/routes/api/cospend/recurring-payments/scheduler/+server.ts

@@ -0,0 +1,57 @@
+import type { RequestHandler } from '@sveltejs/kit';
+import { error, json } from '@sveltejs/kit';
+import { recurringPaymentScheduler } from '../../../../../lib/server/scheduler';
+
+export const GET: RequestHandler = async ({ locals }) => {
+  const auth = await locals.auth();
+  if (!auth || !auth.user?.nickname) {
+    throw error(401, 'Not logged in');
+  }
+
+  try {
+    const status = recurringPaymentScheduler.getStatus();
+    return json({
+      success: true,
+      scheduler: status,
+      message: status.isScheduled ? 'Scheduler is running' : 'Scheduler is stopped'
+    });
+  } catch (e) {
+    console.error('Error getting scheduler status:', e);
+    throw error(500, 'Failed to get scheduler status');
+  }
+};
+
+export const POST: RequestHandler = async ({ request, locals }) => {
+  const auth = await locals.auth();
+  if (!auth || !auth.user?.nickname) {
+    throw error(401, 'Not logged in');
+  }
+
+  try {
+    const body = await request.json();
+    const { action } = body;
+
+    switch (action) {
+      case 'execute':
+        console.log(`[API] Manual execution requested by ${auth.user.nickname}`);
+        await recurringPaymentScheduler.executeNow();
+        return json({
+          success: true,
+          message: 'Manual execution completed'
+        });
+
+      case 'status':
+        const status = recurringPaymentScheduler.getStatus();
+        return json({
+          success: true,
+          scheduler: status
+        });
+
+      default:
+        throw error(400, 'Invalid action. Use "execute" or "status"');
+    }
+  } catch (e) {
+    console.error('Error in scheduler API:', e);
+    throw error(500, 'Scheduler operation failed');
+  }
+};