feat: add CW decoder and linear calculator page

feature/cw/src/main/java/j1/C1646n.java

@@ -0,0 +1,42 @@
+package j1;
+
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import androidx.constraintlayout.widget.ConstraintLayout;
+import com.ve3nea.morse_expert.DecodedTextView;
+import com.ve3nea.morse_expert.ScaleView;
+import com.ve3nea.morse_expert.WaterfallSurfaceView;
+
+/**
+ * 照搬自 Morse Expert 1.15 j1.C1646n, 类名/字段名保持混淆原名。
+ * R8 合并类手术: 只保留视图持有器(6 参构造 + 5 个 View 字段);
+ * 其余 158-1278 行(广告/计费合并方法)已整段裁剪(用户要求广告不迁移)。
+ */
+public final class C1646n {
+
+    public final /* synthetic */ int f;
+
+    /* renamed from: g, reason: collision with root package name */
+    public Object f11888g;
+
+    /* renamed from: h, reason: collision with root package name */
+    public Object f11889h;
+
+    /* renamed from: i, reason: collision with root package name */
+    public Object f11890i;
+
+    /* renamed from: j, reason: collision with root package name */
+    public Object f11891j;
+
+    /* renamed from: k, reason: collision with root package name */
+    public Object f11892k;
+
+    public C1646n(ConstraintLayout constraintLayout, DecodedTextView decodedTextView, ScaleView scaleView, TextView textView, LinearLayout linearLayout, WaterfallSurfaceView waterfallSurfaceView) {
+        this.f = 1;
+        this.f11888g = decodedTextView;
+        this.f11889h = scaleView;
+        this.f11890i = textView;
+        this.f11891j = linearLayout;
+        this.f11892k = waterfallSurfaceView;
+    }
+}