chore: bootstrap lean sysadmin-chronicles repo

Import the runnable game code, content, docs, scripts, and repo guidance while leaving local agent state, dependency installs, build output, and backup copies out of the published tree.

package.json

@@ -0,0 +1,16 @@
+{
+  "name": "sysadmin-chronicles-tools",
+  "version": "0.1.0",
+  "description": "Content validation and tooling for Sysadmin Chronicles",
+  "private": true,
+  "scripts": {
+    "validate": "node tools/content/validate-content.js",
+    "validate:verbose": "node tools/content/validate-content.js --verbose",
+    "validate:quests": "node tools/content/validate-content.js --quests-only"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  },
+  "dependencies": {},
+  "devDependencies": {}
+}