ItemShelf

ADDED

• The knowledge slot honours the weekly treatise cooldown. A profession treatise can be used once per weekly reset; a spent one used to sit on the shelf looking clickable until Wednesday. It now disappears from the shelf once used and comes back with the reset. Covers all 22 current Midnight and The War Within treatises; an unknown future treatise simply stays visible, as before. FIXED
• A flask kept flashing after you drank the same flask of another crafted quality. Each quality applies its own buff spell, and the reminder only recognised the one the item entry points at - so the tier you actually drank could be invisible to it. Any quality now counts: drink the cheap one on purpose and the shelf takes the hint. A gathering phial next to a raid flask still does not count for it, deliberately.
• Reset position could bury a panel under the settings window. Reset used to centre the target on screen - exactly where the settings window sits, so the panel looked like it had vanished. It now returns the target to its out-of-the-box spot on the left. INTERNAL
• /is diag now prints why each consumable is (or is not) nagging - watch state, the item's spell, how its buff was matched - plus the treatise week state, so a wrong reminder can be diagnosed from one paste.
• Dead-code cleanup left over from the module split.