[DoDiODev]

⚠️ Pre Checklist

Please complete ALL items in this checklist, and remove before submitting

• I have read through the Contributing Documentation.
• I have added relevant tests. (N/A — lint only, no behavior change)
• I have added relevant documentation. (N/A)
• I will add labels to the PR, such as pr-type/bug-fix, pr-type/feature-development, etc.
  (I can't set labels myself; suggested: pr-type/refactor, component/framework)

Summary

make lint fails locally on macOS with four revive findings in
tools/pluginsgen/main.go (added in #9288):

tools/pluginsgen/main.go:81:3: unhandled-error: Unhandled error in call to function fmt.Fprintf (revive)
tools/pluginsgen/main.go:245:2: unhandled-error: Unhandled error in call to function bytes.Buffer.WriteString (revive)
... (16 WriteString calls in total)

CI does not report them. With the same golangci-lint v2.15.0 and the same
config, revive's unhandled-error does not fire on Linux at all (checked with
the official golangci/golangci-lint:v2.15.0 image and a minimal file). This
matches golangci/golangci-lint#5580: some typed revive rules silently stop
working in golangci-lint depending on the Go toolchain setup.

Fix:

• .golangci.yaml: add bytes.Buffer.WriteString to the unhandled-error
  ignore list. It is documented to always return a nil error; fmt.Printf,
  fmt.Println and fmt.Fprintln are already listed.
• pluginsgen: print the error with fmt.Fprintln(os.Stderr, "pluginsgen:", err)
  (same output, already on the ignore list).

Does this close any open issues?

N/A

Screenshots

N/A

Other Information

• cd backend && make mock && golangci-lint run on macOS (golangci-lint
  v2.15.0, go1.27.3): 4 issues before, 0 issues. after.
• go build ./tools/pluginsgen: OK.