feat(dev): add devcontainer config, add instructions to README

.devcontainer/devcontainer.json

@@ -0,0 +1,14 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+	"name": "evcc app",
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:1-22-bookworm",
+	"postCreateCommand": "npm install",
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"esbenp.prettier-vscode"
+			]
+		}
+	}
+}

README.md

@@ -1,67 +1,79 @@
-# evcc Native App
-
-Native app wrapper for evcc UI based on [react-native](https://reactnative.dev/) and [expo.dev](https://expo.dev/). It uses [UI Kitten / Eva](https://akveo.github.io/react-native-ui-kitten/) as a design system. Native parts are written in TypeScript and kept to a minimum.
-
-## iOS Beta Testing
-
-Join the beta program via TestFlight:
-
-https://testflight.apple.com/join/8Y4elMpv
-
-## Features
-
-- Onboarding
-  - find evcc instances in local network via mDNS
-  - add instance manually via URL
-  - try the app using the demo instance
-- Full screen evcc UI
-  - use the app in a full screen web view
-  - UI runs in an optimized mode that respects insets (notch, ...)
-  - better gesture support (swipe, ...) by disabling browser zoom and overscroll
-- Online/offline detection
-  - app shows loading screen when instance is not reachable
-  - automatic reconnection when instance becomes reachable again
-  - avoids missleading situations where the app is shown but not functional
-- Configured URL can be changed
-  - in offline mode
-  - via additional top navigation entry "Server ändern"
-- Light and dark mode for native UI
-  - based on system settings (not configurable)
-
-## Screenshots
-
-![iOS Screenshots](./ressources/evcc_app_ios_v1.png)
-
-## Known limitations
-
-- Only German language is supported [#2](https://github.com/evcc-io/app/issues/2)
-- No support for multiple instances [#3](https://github.com/evcc-io/app/issues/3)
-- mDNS discovery only supports HTTP [#1](https://github.com/evcc-io/app/issues/1)
-- No Android release yet [#4](https://github.com/evcc-io/app/issues/4)
-- Not (basic) auth support [#5](https://github.com/evcc-io/app/issues/5)
-
-We'll work on these in a future release. Feel free to vote 👍 to help priorization and add new feature ideas.
-
-## Development
-
-Ensure that you've Node.js and NPM installed. Then install the dependencies:
-
-```bash
-npm install
-```
-
-Follow the expo instructions to run local simulators for [iOS](https://docs.expo.dev/workflow/ios-simulator/) and [Android](https://docs.expo.dev/workflow/android-studio-emulator/).
-
-Start dev mode to get into an interactive development environment.
-
-```bash
-npm run start
-```
-
-Or start iOS, Android or Web simulator directly.
-
-```bash
-npm run ios
-npm run android
-npm run web
-```
+# evcc Native App
+
+Native app wrapper for evcc UI based on [react-native](https://reactnative.dev/) and [expo.dev](https://expo.dev/). It uses [UI Kitten / Eva](https://akveo.github.io/react-native-ui-kitten/) as a design system. Native parts are written in TypeScript and kept to a minimum.
+
+## iOS Beta Testing
+
+Join the beta program via TestFlight:
+
+https://testflight.apple.com/join/8Y4elMpv
+
+## Features
+
+- Onboarding
+  - find evcc instances in local network via mDNS
+  - add instance manually via URL
+  - try the app using the demo instance
+- Full screen evcc UI
+  - use the app in a full screen web view
+  - UI runs in an optimized mode that respects insets (notch, ...)
+  - better gesture support (swipe, ...) by disabling browser zoom and overscroll
+- Online/offline detection
+  - app shows loading screen when instance is not reachable
+  - automatic reconnection when instance becomes reachable again
+  - avoids missleading situations where the app is shown but not functional
+- Configured URL can be changed
+  - in offline mode
+  - via additional top navigation entry "Server ändern"
+- Light and dark mode for native UI
+  - based on system settings (not configurable)
+
+## Screenshots
+
+![iOS Screenshots](./ressources/evcc_app_ios_v1.png)
+
+## Known limitations
+
+- Only German language is supported [#2](https://github.com/evcc-io/app/issues/2)
+- No support for multiple instances [#3](https://github.com/evcc-io/app/issues/3)
+- mDNS discovery only supports HTTP [#1](https://github.com/evcc-io/app/issues/1)
+- No Android release yet [#4](https://github.com/evcc-io/app/issues/4)
+- Not (basic) auth support [#5](https://github.com/evcc-io/app/issues/5)
+
+We'll work on these in a future release. Feel free to vote 👍 to help priorization and add new feature ideas.
+
+## Development
+
+Ensure that you've Node.js and NPM installed. Then install the dependencies:
+
+```bash
+npm install
+```
+
+Follow the expo instructions to run local simulators for [iOS](https://docs.expo.dev/workflow/ios-simulator/) and [Android](https://docs.expo.dev/workflow/android-studio-emulator/).
+
+Alternatively, if you use VS Code and [devcontainers](https://code.visualstudio.com/docs/devcontainers/containers), you can use the "Dev containers: Clone repository in container volume" action. This will create a devcontainer with the required toolchain and install dependencies. Wait until the startup log says "Done. Press any key to close the terminal." and check for any errors.
+
+Start dev mode to get into an interactive development environment.
+
+```bash
+npm run start
+```
+
+Or start iOS, Android or Web simulator directly.
+
+```bash
+npm run ios
+npm run android
+npm run web
+```
+
+## Building an Android apk
+
+To build an Android apk, in addition to the Development setup explained above, you need to:
+
+- Install the EAS CLI with `npm install --global eas-cli`
+- Create a (free) EAS account on https://expo.dev/
+- Remove `projectId` from app.json
+- Run `eas build -p android --profile preview` and follow the instructions
+- When the build has finished, you should get a link that you can directly use to download the apk and a QR code to scan on your phone, also getting you the apk