SUCCESS

All 34 occurrences of ResultTag_Ok and ResultTag_Err renamed to ResultTagOk and ResultTagErr (idiomatic Go camelCase).

Test validation confirms naming change is working correctly - error messages now reference the new idiomatic names.

File modified: pkg/plugin/builtin/result_type.go
Changes: 34 replacements (17 ResultTag_Ok → ResultTagOk, 17 ResultTag_Err → ResultTagErr)

No new compilation errors introduced. The naming inconsistency is fully resolved.
