feat: Add protection for v26.2 SulfurCube, Add Flags.copperoxidation and Flags.raid

[CatTeaA]

1. Add protection for v26.2 SulfurCube
   (SulfurCube is a friendly mob, so it is included in animal protection rules. A feeding verification check has also been implemented for this entity~~SulfurCube’s diet is incredibly varied—this mob will eat almost anything!)

2. Add Flags.CopperOxidation: Controls whether copper blocks can oxidize.

3. Add Flags.Raid: Control whether vanilla raid can be triggered
   (Raid spawns boss bar, sound effects and raider mobs. Villagers are commonly kept inside residences and players reported outsiders deliberately triggering nearby raids to harass them, which can be annoying. The raid will now be cancelled if the Flags.raid flag at the raid’s spawn center is set to false.)

4. Fix Flags.icemelt: false fails to prevent ice melting in the Nether.
   (Packed ice melting in the Nether does not return WATER via getNewState)

5. Fix Cauldron protection bypass.
   (Cauldron has 4 block type IDs with rich interaction logic, Using CauldronLevelChangeEvent provides more comprehensive overwrite protection)