initial commit & scaffold

node-health/.eslintrc.cjs

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+module.exports = {
+	root: true,
+	extends: ['../../.eslintrc.cjs'],
+	parserOptions: {
+		project: './tsconfig.json',
+	},
+	rules: {
+		// package-level overrides
+	},
+};

node-health/.prettierrc.cjs

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+module.exports = require('../.prettierrc.cjs');

node-health/README.md

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+# @health/node

node-health/package.json

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+{
+	"name": "@health/node",
+	"version": "0.1.0",
+	"private": true,
+	"main": "dist/index.js",
+	"types": "dist/index.d.ts",
+	"files": [
+		"dist"
+	],
+	"scripts": {
+		"build": "tsc -p tsconfig.json",
+		"lint": "eslint --ext .ts,.js src",
+		"format": "prettier --write \"src/**/*.{ts,js,json}\"",
+		"test": "echo \"No tests configured\" && exit 0",
+		"check": "npm run lint && npm run build"
+	},
+	"dependencies": {},
+	"devDependencies": {}
+}

node-health/src/index.ts

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+/**
+ * Simple liveness & readiness helpers
+ */
+
+export type ReadinessResult = {
+  ok: boolean;
+  details: { name: string; ok: boolean; error?: string }[];
+};
+
+export function liveness() {
+  return {
+    status: 'ok',
+    timestamp: Date.now(),
+  };
+}
+
+export async function readiness(
+  checks: Array<{ name: string; fn: () => Promise<boolean> | boolean }>
+): Promise<ReadinessResult> {
+  const results: ReadinessResult['details'] = [];
+  for (const c of checks) {
+    try {
+      const r = await Promise.resolve(c.fn());
+      results.push({ name: c.name, ok: !!r });
+    } catch (err: any) {
+      results.push({ name: c.name, ok: false, error: err?.message ?? String(err) });
+    }
+  }
+  return { ok: results.every((r) => r.ok), details: results };
+}

node-health/tsconfig.json

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+{
+	"extends": "../tsconfig.base.json",
+	"compilerOptions": {
+		"rootDir": "src",
+		"outDir": "dist",
+		"composite": false
+	},
+	"include": ["src/**/*"]
+}