Canvas: build application infrastructure with drag and drop

Change-Id: I5cfd12e67794f3376c5c025af29470d52d77cf16
diff --git a/apps/canvas/server/go.mod b/apps/canvas/server/go.mod
new file mode 100644
index 0000000..1e52628
--- /dev/null
+++ b/apps/canvas/server/go.mod
@@ -0,0 +1,3 @@
+module dodo.canvas
+
+go 1.23.3