chore(sdk): prepare package manifest for gitea npm registry and document release flow

sdk/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@cybercore/signer-sdk",
   "version": "0.1.0",
-  "description": "SDK JavaScript para integração de aplicações web com o agente desktop CyberCore Signer via protocolo CCSP/1",
+  "description": "SDK JavaScript/TypeScript para integração de aplicações web com o agente desktop CyberCore Signer via protocolo CCSP/1",
   "type": "module",
   "main": "src/signer-sdk.js",
   "module": "src/signer-sdk.js",
@@ -22,15 +22,24 @@
     "src",
     "README.md"
   ],
+  "engines": {
+    "node": ">=18.0.0"
+  },
+  "sideEffects": false,
+  "publishConfig": {
+    "access": "restricted"
+  },
   "scripts": {
     "test": "node --test test/*.test.js"
   },
-  "author": "CyberCore",
+  "author": "CyberCore Systems",
   "license": "Proprietary",
   "keywords": [
     "cybercore",
     "digital-signature",
     "icp-brasil",
+    "pades",
+    "xmldsig",
     "a1",
     "a3",
     "token",