Major Feature Update: ADB-less Mirroring, Health Connect, Audio Streaming & More

ADD_TO_MAINACTIVITY.kt

@@ -0,0 +1,93 @@
+// ============================================
+// HOW TO ADD HEALTH SCREEN TO YOUR MAINACTIVITY
+// ============================================
+
+// Step 1: Add this import at the top of MainActivity.kt
+import com.sameerasw.airsync.health.SimpleHealthScreen
+
+// Step 2: In your NavHost, add this route:
+composable("health") {
+    SimpleHealthScreen(
+        onNavigateBack = { navController.popBackStack() }
+    )
+}
+
+// Step 3: Add a button somewhere in your UI to navigate to it
+// Example 1: Simple Button
+Button(
+    onClick = { navController.navigate("health") },
+    modifier = Modifier.fillMaxWidth()
+) {
+    Icon(Icons.Default.FavoriteBorder, contentDescription = null)
+    Spacer(modifier = Modifier.width(8.dp))
+    Text("Health & Fitness")
+}
+
+// Example 2: Card with Icon
+Card(
+    modifier = Modifier
+        .fillMaxWidth()
+        .clickable { navController.navigate("health") }
+) {
+    Row(
+        modifier = Modifier.padding(16.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Icon(
+            Icons.Default.FavoriteBorder,
+            contentDescription = null,
+            modifier = Modifier.size(32.dp),
+            tint = MaterialTheme.colorScheme.primary
+        )
+        Spacer(modifier = Modifier.width(16.dp))
+        Column {
+            Text(
+                "Health & Fitness",
+                style = MaterialTheme.typography.titleMedium
+            )
+            Text(
+                "View your health data from Google Fit and Samsung Health",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+        Spacer(modifier = Modifier.weight(1f))
+        Icon(
+            Icons.Default.ChevronRight,
+            contentDescription = null
+        )
+    }
+}
+
+// Example 3: ListItem (for settings screen)
+ListItem(
+    headlineContent = { Text("Health & Fitness") },
+    supportingContent = { Text("Sync health data with Mac") },
+    leadingContent = {
+        Icon(Icons.Default.FavoriteBorder, contentDescription = null)
+    },
+    trailingContent = {
+        Icon(Icons.Default.ChevronRight, contentDescription = null)
+    },
+    modifier = Modifier.clickable {
+        navController.navigate("health")
+    }
+)
+
+// Example 4: TopAppBar Action Button
+TopAppBar(
+    title = { Text("AirSync") },
+    actions = {
+        IconButton(onClick = { navController.navigate("health") }) {
+            Icon(Icons.Default.FavoriteBorder, contentDescription = "Health")
+        }
+    }
+)
+
+// ============================================
+// THAT'S IT! Just add the route and a button.
+// The Health screen will handle everything else:
+// - Checking if Health Connect is installed
+// - Requesting permissions
+// - Fetching and displaying health data
+// ============================================