MGS 2.8.4 — CANON HP & STATS REBALANCE

- Every Origin now has at least 10 HP (5 hearts).
- Combat percentages are 5% increments only; non-zero values are at least +/-10%.
- Role differences are preserved: civilians/support remain weaker, elite soldiers remain strong, and cyborg/heavy characters carry the largest physical profiles.
- HP is Minecraft normalization, not a literal MGS stat.
