fix(core): await secrets store close during TaskStore shutdown (#1822)

## Summary
- Waits for the task store's secrets database handle to close during
shutdown before returning.
- Updates workflow gate expectations for the current built-in lifecycle
nodes.
- Adds a patch changeset for the published CLI package.

## Test Plan
- `corepack pnpm install`
- `corepack pnpm check:changesets`
- `corepack pnpm lint`
- `corepack pnpm build`
- `corepack pnpm test`


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Improved shutdown behavior so task-store cleanup now waits for secrets
storage to close before finishing.
* Reduced the chance of teardown race conditions and incomplete cleanup
during app shutdown.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.changeset/thin-rocks-post.md

@@ -0,0 +1,7 @@
+---
+"@runfusion/fusion": patch
+---
+
+summary: Wait for task store secret database handles to close before cleanup.
+category: fix
+dev: Awaits the async secrets store close path during TaskStore shutdown to avoid teardown races.

packages/core/src/store.ts

@@ -16135,8 +16135,18 @@ ${stepsSection}`;
       this._archiveDb = null;
     }
     if (this.secretsCentralCore) {
-      void this.secretsCentralCore.close();
+      /**
+       * FNXC:TaskStoreShutdown 2026-06-29-13:04:
+       * TaskStore.close() must deterministically await the cached secrets CentralCore close before temp-root cleanup and test teardown continue.
+       * CentralCore.close() is currently synchronous internally, but awaiting the async contract prevents unhandled rejections and preserves shutdown safety if the central secrets handle gains asynchronous cleanup.
+       */
+      const secretsCentralCore = this.secretsCentralCore;
       this.secretsCentralCore = null;
+      try {
+        await secretsCentralCore.close();
+      } catch (err) {
+        console.warn(`[fusion] Could not close secrets central core on TaskStore close:`, err);
+      }
     }
     this.secretsStore = null;
     if (this.pluginStore) {