e978710c44
Lootable unit corpses (UNIT_DYNFLAG_LOOTABLE) now click-through over blocking players, matching the existing behavior for interactable NPCs and game objects. Adds isLootable() check to the interactable NPC test and UNIT_DYNAMIC_FLAGS descriptor offset to shared offsets. Also adds RELEASE_NOTES.md for tracking changes between releases, and adds a checklist item in RELEASING.md to review it before publishing.