Canvas: build application infrastructure with drag and drop

Change-Id: I5cfd12e67794f3376c5c025af29470d52d77cf16
diff --git a/apps/canvas/.gitignore b/apps/canvas/.gitignore
new file mode 100644
index 0000000..cb395a7
--- /dev/null
+++ b/apps/canvas/.gitignore
@@ -0,0 +1,4 @@
+node_modules
+dist
+main
+*.db