Merge mobile branch with Android TV changes

- Update AndroidManifest.xml for TV compatibility
- Add ChannelAdapter with D-pad navigation support
- Update MainActivity for TV UI optimization
- Add Android TV specific resources:
  - banner_streamplayer.xml for TV launcher
  - bg_channel_item_selector for focus states
  - values-sw720dp for large screens
  - integers.xml for TV configurations
- Update item_channel.xml for TV navigation
- Remove unused mobile-specific drawable

Features:
- Android TV Leanback support
- D-pad navigation optimization
- TV-optimized layouts and focus management
- Large screen resources for TV displays

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/src/main/AndroidManifest.xml

@@ -8,6 +8,7 @@
 
     <application
         android:allowBackup="true"
+        android:banner="@drawable/banner_streamplayer"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
@@ -27,9 +28,17 @@
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
             </intent-filter>
         </activity>
 
     </application>
 
+    <uses-feature
+        android:name="android.software.leanback"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
+
 </manifest>

app/src/main/java/com/streamplayer/ChannelAdapter.java

@@ -43,6 +43,10 @@ public class ChannelAdapter extends RecyclerView.Adapter<ChannelAdapter.ChannelV
                 listener.onChannelClick(channel);
             }
         });
+        holder.itemView.setOnFocusChangeListener((v, hasFocus) -> {
+            float scale = hasFocus ? 1.08f : 1f;
+            v.animate().scaleX(scale).scaleY(scale).setDuration(120).start();
+        });
     }
 
     @Override

app/src/main/java/com/streamplayer/MainActivity.java

@@ -15,7 +15,8 @@ public class MainActivity extends AppCompatActivity {
         setContentView(R.layout.activity_main);
 
         RecyclerView recyclerView = findViewById(R.id.channel_grid);
-        recyclerView.setLayoutManager(new GridLayoutManager(this, 3));
+        recyclerView.setLayoutManager(new GridLayoutManager(this, getSpanCount()));
+        recyclerView.setHasFixedSize(true);
         ChannelAdapter adapter = new ChannelAdapter(
                 ChannelRepository.getChannels(),
                 channel -> {
@@ -25,5 +26,10 @@ public class MainActivity extends AppCompatActivity {
                     startActivity(intent);
                 });
         recyclerView.setAdapter(adapter);
+        recyclerView.post(recyclerView::requestFocus);
+    }
+
+    private int getSpanCount() {
+        return getResources().getInteger(R.integer.channel_grid_span);
     }
 }

app/src/main/res/drawable/banner_streamplayer.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <gradient
+                android:angle="0"
+                android:endColor="#FF002766"
+                android:startColor="#FF0F4C81" />
+            <corners android:radius="8dp" />
+        </shape>
+    </item>
+    <item>
+        <bitmap
+            android:antialias="true"
+            android:gravity="center"
+            android:src="@mipmap/ic_launcher" />
+    </item>
+</layer-list>

app/src/main/res/drawable/bg_channel_item.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <solid android:color="#33212121" />
-    <corners android:radius="12dp" />
-    <stroke
-        android:width="1dp"
-        android:color="#55FFFFFF" />
-</shape>

app/src/main/res/drawable/bg_channel_item_selector.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#66FFFFFF" />
+            <corners android:radius="16dp" />
+            <stroke
+                android:width="2dp"
+                android:color="#FFFFFFFF" />
+        </shape>
+    </item>
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#55FFFFFF" />
+            <corners android:radius="16dp" />
+            <stroke
+                android:width="2dp"
+                android:color="#FFFFFFFF" />
+        </shape>
+    </item>
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="#33212121" />
+            <corners android:radius="16dp" />
+            <stroke
+                android:width="1dp"
+                android:color="#55FFFFFF" />
+        </shape>
+    </item>
+</selector>

app/src/main/res/layout/item_channel.xml

@@ -3,7 +3,9 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_margin="6dp"
-    android:background="@drawable/bg_channel_item"
+    android:background="@drawable/bg_channel_item_selector"
+    android:focusable="true"
+    android:focusableInTouchMode="true"
     android:gravity="center_horizontal"
     android:orientation="vertical"
     android:padding="16dp">

app/src/main/res/values-sw720dp/integers.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <integer name="channel_grid_span">5</integer>
+</resources>

app/src/main/res/values/integers.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <integer name="channel_grid_span">3</integer>
+</resources>