Respect XHS original declaration override

[walker1211]

Summary

• Add a top-level XHS auto-publish override for --declare-original=false.
• Preserve the override through automatic XHS publish option building.
• Keep the electronic-pickles default originality behavior unless the caller explicitly disables it.

Test plan

• go test ./cmd/mark2note ./internal/app
• Push hook: secret scan, gofmt, go vet, go test, build