test contracts

frontend/src/lib/stores/taskDrawer.js

@@ -7,6 +7,19 @@
 // @UX_STATE: Closed -> Drawer hidden, no active task
 // @UX_STATE: Open -> Drawer visible, logs streaming
 // @UX_STATE: InputRequired -> Interactive form rendered in drawer
+//
+// @TEST_CONTRACT: TaskDrawerStore ->
+// {
+//   required_fields: {isOpen: boolean, activeTaskId: string|null, resourceTaskMap: Object},
+//   invariants: [
+//       "Updates isOpen and activeTaskId properly on openDrawerForTask",
+//       "Updates isOpen and activeTaskId=null on openDrawer",
+//       "Properly sets isOpen=false on closeDrawer",
+//       "Maintains mapping in resourceTaskMap correctly via updateResourceTask"
+//   ]
+// }
+// @TEST_FIXTURE: valid_store_state -> {"isOpen": true, "activeTaskId": "test_1", "resourceTaskMap": {"res1": {"taskId": "test_1", "status": "RUNNING"}}}
+// @TEST_INVARIANT: state_management -> verifies: [valid_store_state]
 
 import { writable, derived } from 'svelte/store';