feat: implement certificate upload and deletion functionality, enhance certificate management in the API and frontend

frontend/src/api/certificates.ts

@@ -1,13 +1,34 @@
 import client from './client'
 
 export interface Certificate {
+  id?: number
+  name?: string
   domain: string
   issuer: string
   expires_at: string
   status: 'valid' | 'expiring' | 'expired'
+  provider: string
 }
 
 export async function getCertificates(): Promise<Certificate[]> {
   const response = await client.get<Certificate[]>('/certificates')
   return response.data
 }
+
+export async function uploadCertificate(name: string, certFile: File, keyFile: File): Promise<Certificate> {
+  const formData = new FormData()
+  formData.append('name', name)
+  formData.append('certificate_file', certFile)
+  formData.append('key_file', keyFile)
+
+  const response = await client.post<Certificate>('/certificates', formData, {
+    headers: {
+      'Content-Type': 'multipart/form-data',
+    },
+  })
+  return response.data
+}
+
+export async function deleteCertificate(id: number): Promise<void> {
+  await client.delete(`/certificates/${id}`)
+}

frontend/src/api/proxyHosts.ts

@@ -23,6 +23,7 @@ export interface ProxyHost {
   locations: Location[];
   advanced_config?: string;
   enabled: boolean;
+  certificate_id?: number | null;
   created_at: string;
   updated_at: string;
 }