Add first draft of installation and configuration guide for Lastmiler mobile app on iOS

2. Install, Configure, and Run the Mobile App (iOS).md

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+# How to securely install and run the Lastmiler mobile app
+
+## Prerequisites
+
+Your iPhone should be running at least iOS 12.0. We recommend using the latest version available (currently iOS 18). To check your iOS version go to `Settings > General > About > iOS Version`. If a system update is available, install it via `Settings > General > Software Update`.
+
+Ensure your device is signed in and has access to the **App Store**.
+
+## The installation
+
+<!-- ![Installing Lastmiler app from App Store]() -->
+
+1. Start the **"App Store"**
+2. Select top search bar
+3. Search for **"lastmiler"**
+
+<!-- ![Installing Lastmiler app from App Store]() -->
+
+1. Select the Lastmiler App in the results list
+2. Start installation
+3. Wait for installation to complete, then tap **"Open"**  
+   *(You can also find the app on the home screen or using Spotlight Search)*
+
+
+## Using the App for the first time
+
+<!-- ![Starting Lastmiler App For The First Time]() -->
+
+Make sure the Lastmiler App is open and that the login page is displayed.
+
+1. Enter your **Email** and **Password**, then tap **"Login"**
+2. Tap **"Tracking"** in the main menu
+3. Tap the **"Start Tracking"** button at the bottom of the screen
+
+## Configuration of the App
+
+<!-- ![Configuring Lastmiler when starting tracking for the first time]() -->
+
+When starting tracking for the first time, respond to the following prompts:
+
+1. For **"Background Locations Access"**, tap **"I understand"**
+2. For **"Allow Lastmiler to access this device's location?"**, tap **"While using the app"**
+3. For **"Allow Lastmiler to also use your location even when you are not using the app?**", tap **"Change to Always Allow"**
+4. For **"Lastmiler Would Like to Access Your Motion & Fitness Activity"**, tap **"Allow"**
+
+
+## Running the App
+
+Once configured, run the Lastmiler App and begin tracking:
+
+<!-- ![Start tracking after the configuration]() -->
+
+1. Tap **"Stop Tracking"** to end tracking  
+   *(Location data is uploaded to the cloud automatically)*
+
+2. Tap **"My Active Maps"** to view available maps
+
+<!-- ![Viewing active maps]() -->
+
+- Tap on a map to view it
+- Red lines show tracked progress
+- A blue dot indicates your live position if in the area
+
+You may now leave the app running in the background.
+
+<!-- ![Tracking active OS indicator]() -->
+
+**The Location indicator icon must remain active and visible at the top of your screen at all times.**
+
+## Important notes
+
+- All configuration steps must be completed to ensure Notifications, Location access, Physical activity access, Battery usage, and Background activity are enabled.
+- While using the app, the Location icon must be visible in the status bar. If it disappears or is disabled, tracking is not working.
+- Do not use **Power Saving Mode** while tracking. It may cause the app to stop running in the background.
+- Do not activate any **Battery Optimization** prompts during app usage. These may stop background tracking over time.