Add npm workspace structure

shared/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "server-manager-shared",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "private": true,
+  "scripts": {
+    "build": "tsc -p tsconfig.json"
+  },
+  "dependencies": {},
+  "devDependencies": {}
+}

shared/src/index.ts

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+/**
+ * Gemeinsames Shared-Modul für Manager und Wrapper.
+ *
+ * Hier werden später die geteilten Message-Typen,
+ * Status-Interfaces und DTOs definiert.
+ */
+
+export type MessageType =
+  | "wrapper.register"
+  | "wrapper.registered"
+  | "wrapper.heartbeat"
+  | "wrapper.status"
+  | "server.start"
+  | "server.stop"
+  | "server.started"
+  | "server.stopped";
+
+export interface BaseMessage {
+  type: MessageType;
+}

shared/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "CommonJS",
+    "declaration": true,
+    "declarationMap": true,
+    "outDir": "dist",
+    "rootDir": "src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}