Mine Piece: New Era 1.70.0

- Added Cerberus, based on MinePiece's original saber model and sword stats.
- Right-click to summon one owned Cerberus; sneak-use to dismiss. He attacks enemies his owner hits and does not choose unrelated targets or harm his owner/allies.
- Rebuilt Scramble: three staggered, visible dog heads with metal blades chase one locked enemy. Each head hits once for 40 health damage and explodes once, without a second explosion damage hit. Cleanup handles invalid targets, unloaded terrain and owner death.
- Added Grant Covenant to Akuma no Mi Model Devil, usable in normal Steve form. Aim at a real player to open a menu with I Shallows, II Depths, III Abyssal and Remove Covenant.
- Covenant levels write the original Void Century rank and New Era rank, enable existing covenant benefits and make the player eligible for Imu possession.
- Remove Covenant ends possession, removes covenant regeneration/protection/native health changes and its Haoshoku Infusion weakness, and revokes possession eligibility. Unrelated effects are preserved. Imu's own highest covenant is protected.
- Preserved the previous Luffy moves, two-minute covenant regeneration recovery and all unrelated models, combat changes and dependencies.
- Automated production, native linkage, model/schema and regression checks passed. Live Minecraft multiplayer testing was not available.
