Changelog 1.0.0-rc3 region era, now with Forge qwq

The big realm changes

• Changed every new realm to one complete, region-aligned 32x32-chunk cell
• Centered the 16x16-chunk buildable area inside it, with an eight-chunk guard on every side
• Added the persisted region-aligned-32-v1 allocation profile so saved bounds stay authoritative
• Updated spiral placement so axial and diagonal realms always receive unique Anvil region coordinates
• Updated protection, teleport validation, realm centers, spawns, preset placement, imports, and admin output to use the persisted allocation instead of quietly trusting global geometry
• Removed the old 16x16 early-test allocation path; RC test installations should recreate their realms after a clean reset

Backups got a lil safer

• Added REGION_COPY backups for exact region-aligned realms
• Backups now include the realm's dedicated terrain, entity, and POI .mca files plus referenced external .mcc payloads
• Kept CHUNK_EXTRACT for explicit custom allocations, so the selective backup path is still available
• Added allocation profile, strategy, payload counts, metadata, and checksums to the backup/catalog formats
• Updated automatic and manual backups to select the strategy from the realm's persisted allocation
• Added exact offline region restore with server-offline checks, persistent-state fingerprinting, quarantine, checksummed replacement, and recoverable operation records
• Restoring one realm leaves every neighboring region file untouched, nice and snug where it belongs qwq

Forge 1.21.1

• Added the Forge 1.21.1 loader module using the Fabric 1.21.1 implementation as the behavioral reference
• Ported runtime composition, commands, persistence, protection hooks, presets, Wilds, backups, and offline tools
• Added Forge production, sources, realm-backup-tool, and Wilds-reset-tool JAR outputs

Polish and verification

• Added fixed RC configuration defaults for the 32/16/8 allocation geometry
• Expanded preset and schematic limits to the full 16x16 buildable area
• Updated README and backup/restore documentation, including the explicit clean-reset procedure
• Added focused allocation, profile, region-copy, .mcc, restore-isolation, protection, persistence, and teleport tests
• Verified the complete clean build for common, Fabric 1.21.1, and Forge 1.21.1