Adds description back in

Author: samejr

.cursor/rules/writing-tasks.mdc

@@ -1,5 +1,6 @@
 ---
 globs: **/trigger/**/*.ts, **/trigger/**/*.tsx,**/trigger/**/*.js,**/trigger/**/*.jsx
+description: Guidelines for writing Trigger.dev tasks
 alwaysApply: false
 ---
 # How to write Trigger.dev tasks