Sets up calendar package with core infrastructure

Adds core calendar package components including:
- Base services for events, resources, and settings
- Calendar app and orchestrator
- Build and bundling configuration
- IndexedDB storage setup

Prepares foundational architecture for calendar functionality

packages/calendar/package.json

@@ -0,0 +1,57 @@
+{
+  "name": "calendar",
+  "version": "0.1.6",
+  "description": "Calendar library",
+  "author": "SWP",
+  "type": "module",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/index.js",
+      "types": "./dist/index.d.ts"
+    },
+    "./teams": {
+      "import": "./dist/extensions/teams/index.js",
+      "types": "./dist/extensions/teams/index.d.ts"
+    },
+    "./departments": {
+      "import": "./dist/extensions/departments/index.js",
+      "types": "./dist/extensions/departments/index.d.ts"
+    },
+    "./bookings": {
+      "import": "./dist/extensions/bookings/index.js",
+      "types": "./dist/extensions/bookings/index.d.ts"
+    },
+    "./customers": {
+      "import": "./dist/extensions/customers/index.js",
+      "types": "./dist/extensions/customers/index.d.ts"
+    },
+    "./schedules": {
+      "import": "./dist/extensions/schedules/index.js",
+      "types": "./dist/extensions/schedules/index.d.ts"
+    },
+    "./audit": {
+      "import": "./dist/extensions/audit/index.js",
+      "types": "./dist/extensions/audit/index.d.ts"
+    },
+    "./styles": "./dist/css/calendar.css"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "node build.js && npm run build:types",
+    "build:types": "tsc --emitDeclarationOnly --outDir dist"
+  },
+  "peerDependencies": {
+    "@novadi/core": "^0.6.0"
+  },
+  "dependencies": {
+    "dayjs": "^1.11.0"
+  },
+  "devDependencies": {
+    "esbuild": "^0.24.0",
+    "typescript": "^5.0.0"
+  }
+}