feat: update package version to 0.0.42 and add CNB version fetching functionality

- Updated package version in package.json from 0.0.40 to 0.0.42.
- Added getCNBVersion function to fetch CNB version information from the API.
- Enhanced Issue class with methods for managing comments (list, create, get, update).
- Introduced new NPC and comment environment hooks for better context management.
- Implemented Docker image synchronization route for CNB.
- Added tests for version fetching and issue comment functionalities.

agent/routes/issues/index.ts

@@ -1,2 +1,3 @@
 import './list.ts'
-import './issue.ts'
+import './issue.ts'
+import './comments.ts'