fix: add equals and hashCode to Accessory and Tuning entities

src/main/java/com/onixbyte/deltaforceguide/domain/entity/Accessory.java

@@ -2,6 +2,7 @@ package com.onixbyte.deltaforceguide.domain.entity;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 public class Accessory {
 
@@ -45,4 +46,22 @@ public class Accessory {
     public void removeTuning(Tuning tuning) {
         this.tunings.remove(tuning);
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof Accessory accessory)) {
+            return false;
+        }
+        return Objects.equals(slotName, accessory.slotName)
+                && Objects.equals(accessoryName, accessory.accessoryName)
+                && Objects.equals(tunings, accessory.tunings);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(slotName, accessoryName, tunings);
+    }
 }

src/main/java/com/onixbyte/deltaforceguide/domain/entity/Tuning.java

@@ -1,5 +1,7 @@
 package com.onixbyte.deltaforceguide.domain.entity;
 
+import java.util.Objects;
+
 public class Tuning {
 
     private String tuningName;
@@ -23,4 +25,21 @@ public class Tuning {
     public void setTuningValue(Double tuningValue) {
         this.tuningValue = tuningValue;
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof Tuning tuning)) {
+            return false;
+        }
+        return Objects.equals(tuningName, tuning.tuningName)
+                && Objects.equals(tuningValue, tuning.tuningValue);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(tuningName, tuningValue);
+    }
 }