Initial project setup: monorepo structure and documentation

package.json

@@ -0,0 +1,28 @@
+{
+  "name": "gridpilot",
+  "version": "0.1.0",
+  "private": true,
+  "description": "GridPilot - Clean Architecture monorepo for web platform and Electron companion app",
+  "engines": {
+    "node": ">=20.0.0"
+  },
+  "workspaces": [
+    "src/packages/*",
+    "src/apps/*"
+  ],
+  "scripts": {
+    "dev": "echo 'Development server placeholder - to be configured'",
+    "build": "echo 'Build all packages placeholder - to be configured'",
+    "test": "vitest run",
+    "test:unit": "vitest run tests/unit",
+    "test:integration": "vitest run tests/integration",
+    "test:e2e": "vitest run tests/e2e",
+    "test:watch": "vitest watch",
+    "typecheck": "tsc --noEmit"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.2",
+    "typescript": "^5.7.2",
+    "vitest": "^2.1.8"
+  }
+}