chore: enable wrapcheck linter and wrap all external errors#22
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Wrap all errors returned from database/sql and context interfaces with contextual messages using fmt.Errorf and %w. Enable wrapcheck in .golangci.yml. Closes #16
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Summary
Enable the
wrapcheckgolangci-lint rule and wrap all errors returned from external packages (database/sql,context) with contextual messages usingfmt.Errorfand%w. This ensures error chains carry useful context for debugging.Changes
wrapcheckin.golangci.ymlStore,Load,Delete,List,Stat,Close,initSchema,Lock,tryLock, andUnlockwith descriptive contextCloses #16