Actual first four leaderboard category selections

RE-774. Reproduce with python3 scripts/analyze_qvm_leaderboard_categories.py; validate with cargo xtask test-group leaderboard-categories. See the machine report.

Recovered283623..283816 over12 live-client/data patterns. Original key groups feed actual284555/284610/278587, with ratio zero and threshold60=5 for the first three categories; the fourth activates only threshold60=10. Results populate slots1/2/3/5 of the16-word publication array. Stops before fourth-category total post-filter; later categories and native/publication parity remain open.

No original executable/full VM/native world collision or rendering runs. Supplied callback/native responses and fixture domains remain explicit; complete macOS/Linux Rust/Bevy/Solari gameplay remains open.