Integration and add heat map demo

- Implemented OpenStreetMap using WebView with Leaflet.js
- Added OpenStreetMapView component with interactive map functionality
- Created heat map visualization with color-coded intensity
- Added 30 dummy location points around San Francisco Bay Area
- Implemented location tracking with real-time pin placement
- Added comprehensive UI with two-row button layout
- Features: Start/Stop tracking, Center map, Demo heat map, Clear demo, Reset map
- Added location count display and confirmation dialogs
- Updated project structure and documentation
- All functionality tested and working on Android emulator

LocationTrackerApp/set-api-key.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+# Bash script to set Google Maps API key environment variable
+# Usage: ./set-api-key.sh your_actual_api_key_here
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <api_key>"
+    echo "Example: $0 AIzaSyYourActualApiKeyHere"
+    exit 1
+fi
+
+API_KEY="$1"
+
+# Set the environment variable for the current session
+export GoogleMapsApiKey="$API_KEY"
+
+echo "Google Maps API Key set to: $API_KEY"
+echo "You can now build the app with: dotnet build -f net9.0-android"
+echo ""
+echo "Note: This environment variable is only set for the current session."
+echo "To make it permanent, add this line to your ~/.bashrc or ~/.zshrc:"
+echo "export GoogleMapsApiKey=\"$API_KEY\""