Add creator field and enriched tooltip for data-driven items

- Add optional "creator" JSON field to display author name in tooltip
- Show body regions, movement style, lock status, and escape difficulty
- Show pose priority and item ID in advanced mode (F3+H)
- Update ARTIST_GUIDE.md field reference and test JSON

src/main/resources/assets/tiedup/lang/en_us.json

@@ -229,6 +229,10 @@
   "item.tiedup.tooltip.lockable": "Lockable (has padlock)",
   "item.tiedup.tooltip.jammed": "Jammed (lockpick blocked)",
   "item.tiedup.tooltip.escape_difficulty": "Escape Difficulty: %s",
+  "item.tiedup.tooltip.creator": "By %s",
+  "item.tiedup.tooltip.regions": "Regions: %s",
+  "item.tiedup.tooltip.movement_style": "Movement: %s",
+  "item.tiedup.tooltip.pose_priority": "Pose Priority: %s",
 
   "item.tiedup.v2_handcuffs": "Handcuffs",