feat: show DeepSeek balance prominently on phone main screen

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

@@ -14,6 +14,7 @@ import org.json.JSONObject;
 public class MainActivity extends AppCompatActivity {
 
     private TextView status;
+    private TextView balanceView;
     private ServerClient serverClient;
     private WatchBridge watchBridge;
     private boolean balancePending = false;
@@ -24,6 +25,7 @@ public class MainActivity extends AppCompatActivity {
         setContentView(R.layout.activity_main);
 
         status = findViewById(R.id.status_text);
+        balanceView = findViewById(R.id.balance_text);
 
         // 服务器客户端
         serverClient = new ServerClient(new ServerClient.Listener() {
@@ -69,7 +71,10 @@ public class MainActivity extends AppCompatActivity {
                     double total = (infos != null && infos.length() > 0 && infos.optJSONObject(0) != null)
                             ? infos.optJSONObject(0).optDouble("total_balance", 0.0) : 0.0;
                     String balance = String.format("%.2f", total);
-                    runOnUiThread(() -> status.setText("余额 ¥ " + balance));
+                    runOnUiThread(() -> {
+                        status.setText("余额 ¥ " + balance);
+                        balanceView.setText("DeepSeek 余额 ¥" + balance);
+                    });
                     JSONObject payload = new JSONObject();
                     try { payload.put("balance", balance); } catch (Exception e) {}
                     JSONObject msg = new JSONObject();

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

@@ -24,6 +24,16 @@
         android:textColor="@color/white"
         android:textSize="16sp" />
 
+    <TextView
+        android:id="@+id/balance_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="DeepSeek 余额 ¥--"
+        android:textColor="#33B4FF"
+        android:textSize="28sp"
+        android:textStyle="bold" />
+
     <Button
         android:id="@+id/btn_refresh"
         android:layout_width="match_parent"