Enhanced the C-key character screen with a 3-column layout featuring a 3D
character model preview (with drag-to-rotate), item icons loaded from BLP
textures via ItemDisplayInfo.dbc, and a stats panel showing base + equipment
bonuses. Fixed selection circle clipping under terrain by adding a Z offset,
and corrected faction hostility logic that was wrongly marking hostile mobs
as friendly.
Right-click now attacks hostile NPCs (npcFlags==0) and interacts with
friendly ones in online mode. Parse UNIT_FIELD_FLAGS (59) and
UNIT_NPC_FLAGS (82) from update packets. Stop auto-attack when target
dies or despawns. Add CMSG_ITEM_QUERY_SINGLE/SMSG_ITEM_QUERY_SINGLE_RESPONSE
to populate inventory from server item objects and player slot fields.
- Fix encryption desync by tracking decrypted header bytes in world socket
- Fix UPDATE_OBJECT movement block parsing to handle 3.3.5a update flags
- Fix UNIT_FIELD_DISPLAYID index (67, not 71)
- Add creature spawn/despawn callbacks with DBC-based model loading
- Add SMSG_COMPRESSED_UPDATE_OBJECT opcode support
