update README

README.md

@@ -1,50 +1,141 @@
-# Welcome to your Expo app 👋
+# CalChat
 
-This is an [Expo](https://expo.dev) project created with [`create-expo-app`](https://www.npmjs.com/package/create-expo-app).
+Kalender-App mit KI-Chatbot. Termine lassen sich per Chat in natuerlicher Sprache erstellen, bearbeiten und loeschen.
 
-## Get started
+## Tech Stack
 
-1. Install dependencies
+| Bereich | Technologie |
+|---------|-------------|
+| Frontend | React Native, Expo, Expo-Router, NativeWind, Zustand |
+| Backend | Express.js, MongoDB, Mongoose, OpenAI GPT |
+| Shared | TypeScript Monorepo mit npm Workspaces |
+| Optional | CalDAV-Sync (z.B. Radicale) |
+
+## Voraussetzungen
+
+- Node.js (>= 20)
+- npm
+- Docker & Docker Compose (fuer MongoDB)
+- OpenAI API Key (fuer KI-Chat)
+- Android SDK + Java (nur fuer APK-Build)
+
+## Projekt aufsetzen
+
+### 1. Repository klonen
+
+```bash
+git clone <repo-url>
+cd calchat
+```
+
+### 2. Dependencies installieren
 
 ```bash
 npm install
 ```
 
-2. Start the app
+Installiert alle Dependencies fuer Client, Server und Shared.
+
+### 3. MongoDB starten
 
 ```bash
-   npx expo start
+cd apps/server/docker/mongo
+docker compose up -d
 ```
 
-In the output, you'll find options to open the app in a
+- MongoDB: `localhost:27017` (root/mongoose)
+- Mongo Express UI: `localhost:8083` (admin/admin)
 
-- [development build](https://docs.expo.dev/develop/development-builds/introduction/)
+### 4. Server konfigurieren
-- [Android emulator](https://docs.expo.dev/workflow/android-studio-emulator/)
-- [iOS simulator](https://docs.expo.dev/workflow/ios-simulator/)
-- [Expo Go](https://expo.dev/go), a limited sandbox for trying out app development with Expo
-
-You can start developing by editing the files inside the **app** directory. This project uses [file-based routing](https://docs.expo.dev/router/introduction).
-
-## Get a fresh project
-
-When you're ready, run:
 
 ```bash
-npm run reset-project
+cp apps/server/.env.example apps/server/.env
 ```
 
-This command will move the starter code to the **app-example** directory and create a blank **app** directory where you can start developing.
+`apps/server/.env` bearbeiten:
 
-## Learn more
+```env
+MONGODB_URI=mongodb://root:mongoose@localhost:27017/calchat?authSource=admin
+OPENAI_API_KEY=sk-proj-...    # Eigenen Key eintragen
+USE_TEST_RESPONSES=false       # true = statische Testantworten ohne GPT
+LOG_LEVEL=debug
+NODE_ENV=development
+PORT=3000
+```
 
-To learn more about developing your project with Expo, look at the following resources:
+### 5. Client konfigurieren
 
-- [Expo documentation](https://docs.expo.dev/): Learn fundamentals, or go into advanced topics with our [guides](https://docs.expo.dev/guides).
+```bash
-- [Learn Expo tutorial](https://docs.expo.dev/tutorial/introduction/): Follow a step-by-step tutorial where you'll create a project that runs on Android, iOS, and the web.
+cp apps/client/.env.example apps/client/.env
+```
 
-## Join the community
+`apps/client/.env` bearbeiten:
 
-Join our community of developers creating universal apps.
+```env
+# Fuer Emulator/Web:
+EXPO_PUBLIC_API_URL=http://localhost:3000/api
 
-- [Expo on GitHub](https://github.com/expo/expo): View our open source platform and contribute.
+# Fuer physisches Geraet im gleichen Netzwerk:
-- [Discord community](https://chat.expo.dev): Chat with Expo users and ask questions.
+EXPO_PUBLIC_API_URL=http://<DEINE-LOKALE-IP>:3000/api
+```
+
+### 6. Server starten
+
+```bash
+npm run dev -w @calchat/server
+```
+
+Startet den Server auf Port 3000 (mit `tsx watch` - startet bei Dateiänderungen automatisch neu (oder sollte es zumindest)).
+
+### 7. Client starten
+
+```bash
+npm run start -w @calchat/client
+```
+
+Dann im Expo-Menue die gewuenschte Plattform waehlen:
+- `a` - Android Emulator
+- `i` - iOS Simulator
+- `w` - Web Browser
+
+Oder direkt:
+
+```bash
+npm run android -w @calchat/client
+npm run ios -w @calchat/client
+npm run web -w @calchat/client
+```
+
+## CalDAV (optional)
+
+Fuer CalDAV-Synchronisation kann ein Radicale-Server gestartet werden:
+
+```bash
+cd apps/server/docker/radicale
+docker compose up -d
+```
+
+Radicale ist dann unter `localhost:5232` erreichbar. Die CalDAV-Verbindung wird in der App unter Einstellungen konfiguriert.
+
+## Weitere Befehle
+
+```bash
+npm run format                          # Prettier auf alle TS/TSX-Dateien
+npm run lint -w @calchat/client         # ESLint (Client)
+npm run build -w @calchat/server        # TypeScript kompilieren (Server)
+npm run build:apk -w @calchat/client    # APK lokal bauen (EAS)
+```
+
+## Projektstruktur
+
+```
+calchat/
+├── apps/
+│   ├── client/          # Expo React Native App
+│   └── server/          # Express.js Backend
+│       └── docker/
+│           ├── mongo/   # MongoDB + Mongo Express
+│           └── radicale/ # CalDAV Server
+└── packages/
+    └── shared/          # Geteilte Types und Utilities
+```