* [MM-61463] Fix errcheck issues in post_helpers_test.go
- Added proper error handling for System.Save calls
- Removed post_helpers_test.go from errcheck ignore list in .golangci.yml
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add back channels/app/plugin_test.go|
* Fix server/.golangci.yml
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Co-authored-by: Claude <noreply@anthropic.com>