Auto Sell Grey

[3.13] - 2026-05-21

Improved

- Sell session safety — The sell queue stops if the merchant window is no longer open (not only on `MERCHANT_CLOSED`), so delayed `C_Timer.After` callbacks cannot keep calling `UseContainerItem` after the window was dismissed.

- Grey item data — Vendor price and quality resolution falls back to `containerItem.hyperlink` when the bag link argument is missing, matching retail `GetContainerItemInfo` behavior more reliably.

- Minimap tooltip performance — Grey bag count and vendor value are cached briefly (0.5s) while hovering the minimap button; the cache is cleared when a sell session finishes, when the merchant window closes, or when the sell queue is rebuilt so totals stay accurate.

- SavedVariables: `maxItemsPerSession` — Missing or non-numeric values are reset to the default (12) on load, not only clamped when a number was already stored.

- Settings checkboxes — Toggle handlers normalize checkbox state to real Lua booleans (`not not GetChecked()`), consistent with saved-settings sanitization.