chore: remove superpowers docs and add Cursor workspace settings (#150)

* chore(docs): remove superpowers plans and artifacts

Co-authored-by: Cursor <cursoragent@cursor.com>

* chore(cursor): add workspace settings for superpowers plugin

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: elkaix

.cursor/settings.json

@@ -0,0 +1,7 @@
+{
+  "plugins": {
+    "superpowers": {
+      "enabled": true
+    }
+  }
+}