flake-register: skip 1000-note scale test in -short mode

[aksOps]

Location: internal/notes/notes_test.go:230

Skipped under go test -short. Tracking so we remember to either run nightly or opt in via scale tag.

Owner: unassigned.

[aksOps]

Fixed by #75 (chore: scale-tag nightly + drop scale tests from PR CI). Test is now behind //go:build scale + runs in the new nightly workflow.