feat(sat): add API endpoints for FIEL and SAT sync (Phase 7)

- Add FIEL controller with upload, status, and delete endpoints
- Add SAT controller with sync start, status, history, and retry
- Add admin endpoints for cron job info and manual execution
- Register new routes in app.ts
- All endpoints protected with authentication middleware

Endpoints added:
- POST /api/fiel/upload
- GET /api/fiel/status
- DELETE /api/fiel
- POST /api/sat/sync
- GET /api/sat/sync/status
- GET /api/sat/sync/history
- GET /api/sat/sync/:id
- POST /api/sat/sync/:id/retry
- GET /api/sat/cron
- POST /api/sat/cron/run

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api/src/controllers/fiel.controller.ts

@@ -0,0 +1,82 @@
+import type { Request, Response } from 'express';
+import { uploadFiel, getFielStatus, deleteFiel } from '../services/fiel.service.js';
+import type { FielUploadRequest } from '@horux/shared';
+
+/**
+ * Sube y configura las credenciales FIEL
+ */
+export async function upload(req: Request, res: Response): Promise<void> {
+  try {
+    const tenantId = req.headers['x-tenant-id'] as string;
+    if (!tenantId) {
+      res.status(400).json({ error: 'Tenant ID requerido' });
+      return;
+    }
+
+    const { cerFile, keyFile, password } = req.body as FielUploadRequest;
+
+    if (!cerFile || !keyFile || !password) {
+      res.status(400).json({ error: 'cerFile, keyFile y password son requeridos' });
+      return;
+    }
+
+    const result = await uploadFiel(tenantId, cerFile, keyFile, password);
+
+    if (!result.success) {
+      res.status(400).json({ error: result.message });
+      return;
+    }
+
+    res.json({
+      message: result.message,
+      status: result.status,
+    });
+  } catch (error: any) {
+    console.error('[FIEL Controller] Error en upload:', error);
+    res.status(500).json({ error: 'Error interno del servidor' });
+  }
+}
+
+/**
+ * Obtiene el estado de la FIEL configurada
+ */
+export async function status(req: Request, res: Response): Promise<void> {
+  try {
+    const tenantId = req.headers['x-tenant-id'] as string;
+    if (!tenantId) {
+      res.status(400).json({ error: 'Tenant ID requerido' });
+      return;
+    }
+
+    const fielStatus = await getFielStatus(tenantId);
+    res.json(fielStatus);
+  } catch (error: any) {
+    console.error('[FIEL Controller] Error en status:', error);
+    res.status(500).json({ error: 'Error interno del servidor' });
+  }
+}
+
+/**
+ * Elimina las credenciales FIEL
+ */
+export async function remove(req: Request, res: Response): Promise<void> {
+  try {
+    const tenantId = req.headers['x-tenant-id'] as string;
+    if (!tenantId) {
+      res.status(400).json({ error: 'Tenant ID requerido' });
+      return;
+    }
+
+    const deleted = await deleteFiel(tenantId);
+
+    if (!deleted) {
+      res.status(404).json({ error: 'No hay FIEL configurada' });
+      return;
+    }
+
+    res.json({ message: 'FIEL eliminada correctamente' });
+  } catch (error: any) {
+    console.error('[FIEL Controller] Error en remove:', error);
+    res.status(500).json({ error: 'Error interno del servidor' });
+  }
+}