Initial commit

Assets/_Project/Scripts/Code/BlockExtensions/Abstraction/IPlacementHandler.cs

@@ -0,0 +1,14 @@
+public interface IPlacementHandler
+{
+    /// <summary>
+    /// Commit the ghost's current transform as the final placed state.
+    /// </summary>
+    void Commit(BlockEditContext ctx);
+
+    /// <summary>
+    /// Cancel the edit and restore any previous state.
+    /// </summary>
+    void Cancel(BlockEditContext ctx);
+
+    void Debugln();
+}