feat: 初始化 kdbx-viewer 项目

实现服务端解密的 KeePass 网页查看器，包含登录门户口令与验证码、RSA+会话级 AES 加密通道、审计日志持久化、HTTPS 自动证书、Docker 部署配置及端到端测试。

package.json

@@ -0,0 +1,20 @@
+{
+  "name": "kdbx-viewer",
+  "version": "1.0.0",
+  "description": "服务端解密的 KeePass(kdbx) 只读/可编辑网页查看器，替代 KeeWeb，密钥文件不触网",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "test": "node test-decrypt.js",
+    "test:e2e": "node e2e-test.js"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "dotenv": "^17.4.2",
+    "express": "^4.19.2",
+    "express-session": "^1.18.0",
+    "hash-wasm": "^4.12.0",
+    "kdbxweb": "^2.1.1",
+    "node-forge": "^1.3.1"
+  }
+}