feat: enable custom file storage for document siging

apps/OpenSignServer/package.json

@@ -18,6 +18,8 @@
     "watch": "nodemon index.js"
   },
   "dependencies": {
+    "@aws-sdk/client-s3": "^3.664.0",
+    "@aws-sdk/s3-request-presigner": "^3.664.0",
     "@parse/fs-files-adapter": "^3.0.0",
     "@parse/s3-files-adapter": "^2.2.0",
     "@pdf-lib/fontkit": "^1.1.1",
@@ -32,7 +34,6 @@
     "form-data": "^4.0.0",
     "generate-api-key": "^1.0.2",
     "googleapis": "^144.0.0",
-    "jsonschema": "^1.4.1",
     "mailgun.js": "^10.2.3",
     "mongoose": "^8.7.0",
     "multer": "^1.4.5-lts.1",
@@ -41,7 +42,7 @@
     "nodemailer": "^6.9.15",
     "parse": "^5.3.0",
     "parse-dbtool": "^1.2.0",
-    "parse-server": "^7.3.0-alpha.8",
+    "parse-server": "^7.3.0",
     "parse-server-api-mail-adapter": "^4.0.0",
     "pdf-lib": "^1.17.1",
     "posthog-node": "^4.2.0",
@@ -49,10 +50,10 @@
   },
   "type": "module",
   "devDependencies": {
-    "@babel/eslint-parser": "^7.25.1",
+    "@babel/eslint-parser": "^7.25.7",
     "eslint": "^9.11.1",
-    "jasmine": "^5.3.0",
-    "mongodb-runner": "^5.6.6",
+    "jasmine": "^5.3.1",
+    "mongodb-runner": "^5.7.0",
     "nodemon": "^3.1.7",
     "nyc": "^17.1.0",
     "prettier": "^3.3.3"