feat: add HTTP-01 challenge support

package.json

@@ -1,13 +1,13 @@
 {
   "name": "azure-acme-provisioner",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "author": {
     "name": "Sławomir Koszewski",
     "url": "https://github.com/skoszewski"
   },
   "licenses": [
     {
-      "type":"MIT",
+      "type": "MIT",
       "url": "https://opensource.org/licenses/MIT"
     }
   ],
@@ -44,9 +44,11 @@
     "@azure/keyvault-secrets": "^4.11.2",
     "@peculiar/x509": "^2.0.0",
     "acme-client": "^5.4.0",
-    "commander": "^14.0.0"
+    "commander": "^14.0.0",
+    "express": "^5.2.1"
   },
   "devDependencies": {
+    "@types/express": "^5.0.6",
     "@types/node": "^24.0.0",
     "rimraf": "^6.1.3",
     "typescript": "^6.0.0"