add whitelabel tutorial

[Sakrecoer]

big thanks @phoebus-84 💜

LMK what you think @andrea-dintino

[puria]

I suggest you write how to use mise here. In a way that the developers do not need to install all the prerequisites by hand... @phoebus-84

[phoebus-84]

okk something like:

Suggested change

	## Prerequisites
	- OS: Linux or macOS (bash/zsh)
	- Node.js: v18+ (LTS recommended)
	- PNPM: v8+
	```bash
	corepack enable
	corepack prepare pnpm@latest --activate
	```
	- Git + GitHub account (access to Forkbomb repos)
	- Android tooling:
	- Android Studio (latest), Android SDK, at least one emulator (API 30+)
	- Java 17+ (e.g., Temurin/OpenJDK 17)
	- Capacitor/Ionic CLIs are invoked via package scripts (no global install needed)
	> Quick check:
	> ```bash
	> node -v
	> pnpm -v
	> java -version
	> adb version
	> ```
	---
	## Prerequisites
	- OS: Linux or macOS (bash/zsh)
	- Git + GitHub account (access to Forkbomb repos)
	- Android tooling:
	- Android Studio (latest), Android SDK, at least one emulator (API 30+)
	- Capacitor/Ionic CLIs are invoked via package scripts (no global install needed)
	### Using mise (Recommended)
	[mise](https://mise.jdx.dev/) is a polyglot tool version manager that automatically manages Node.js, Java, Gradle, and pnpm versions. The project includes a `.tool-versions` file that specifies all required versions.
	1. **Install and setup mise:**
	Follow the instructions at https://mise.jdx.dev/getting-started.html
	2. **Install all required tools automatically:**
	```bash
	cd ~/work/didroom/wallet
	mise install
	# This reads .tool-versions and installs:
	# - Java OpenJDK 21
	# - Gradle 8
	# - Node.js 20.11.1
	# - pnpm 9
	\` \` \`
	3. **Verify installations:**
	` ``bash
	node -v # should show v20.11.1
	pnpm -v # should show v9.x.x
	java -version # should show version 21
	gradle -v # should show version 8.x
	adb version
	\` \` \`
	> **Note:** mise will automatically use the correct versions when you're in the wallet directory. No need to manually switch versions.
	---

[puria]

seems good to me!