Pinkstack/luau-coding-instructions-pretrain

mix of datasets, formatter for pre-training: (no specific order) 8BitStudio/Roblox-luau-coding_L1, hsusulist/luau-data, Laserhun/gemini_rblx_luau, TorpedoSoftware/Roblox-Luau-Reasoning-v1.0