feat(core): initial release with 3-tier secret storage

Implements SmartSecret with macOS Keychain, Linux secret-tool, and AES-256-GCM encrypted file fallback backends. Zero runtime dependencies.

package.json

@@ -0,0 +1,58 @@
+{
+  "name": "@push.rocks/smartsecret",
+  "version": "1.0.0",
+  "private": false,
+  "description": "OS keychain-based secret storage with encrypted-file fallback for Node.js.",
+  "main": "dist_ts/index.js",
+  "typings": "dist_ts/index.d.ts",
+  "type": "module",
+  "scripts": {
+    "test": "(tstest test/ --verbose)",
+    "build": "(tsbuild)",
+    "buildDocs": "tsdoc"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://code.foss.global/push.rocks/smartsecret.git"
+  },
+  "keywords": [
+    "secret",
+    "keychain",
+    "credential",
+    "vault",
+    "encryption",
+    "security",
+    "keyring",
+    "libsecret",
+    "macos-keychain",
+    "aes-256-gcm"
+  ],
+  "author": "Task Venture Capital GmbH",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/pushrocks/smartsecret/issues"
+  },
+  "homepage": "https://code.foss.global/push.rocks/smartsecret",
+  "devDependencies": {
+    "@git.zone/tsbuild": "^4.1.2",
+    "@git.zone/tsrun": "^2.0.1",
+    "@git.zone/tstest": "^3.1.8",
+    "@push.rocks/tapbundle": "^6.0.3",
+    "@types/node": "^22.15.0"
+  },
+  "files": [
+    "ts/**/*",
+    "ts_web/**/*",
+    "dist/**/*",
+    "dist_*/**/*",
+    "dist_ts/**/*",
+    "dist_ts_web/**/*",
+    "assets/**/*",
+    "cli.js",
+    "npmextra.json",
+    "readme.md"
+  ],
+  "browserslist": [
+    "last 1 chrome versions"
+  ]
+}