Keystone Monitor

### Added

- Run History tab in the " /km " window — the run log now lives inside the main options window instead of chat. It shows summary stats (total runs, timed rate, best timed key, average deaths), All / Mythic+ / Dungeons filters, key levels colored by tier, Timed/Depleted/Cleared results, and full per-run tooltips. " /km history " jumps straight to the tab.
- Watch button on the tracker frame (top-right, shown faintly) that opens the Run History tab.
- Run history now stores the last 100 runs (up from 30).

### Changed

- The /km window has been redesigned to match the new visual language: near-black neutral surfaces, an accent gradient strip with a soft glow across the top, accent-colored section titles with gradient rules, sidebar tabs with an accent selection bar, and toggles/sliders tinted by your accent or class color instead of the old fixed blue. Changing the accent color (or toggling class color) re-themes the window instantly along with the tracker.
- Tracker visual refresh: gradient accent bar with a soft glow, subtle header sheen tinted by your accent color, smoothly animated progress bar with a spark at the fill edge, and icon-based objective states (green check for done, hourglass for engaged, dim indicator for pending) replacing the [Done] / [Engaged] / [ ] text markers.
- Deaths are highlighted in red on the tracker once the counter is above zero.

### Removed

- The standalone " /km history " window and " /km history " chat chat printout. History is part of the  " /km window " now.
- The ko-fi support link. The Help & Feedback section in General now links to the Discord for issues and questions instead.

### Performance

- Progress bar animation runs its OnUpdate handler only while the bar is actually moving; the history panel reuses row frames and only refreshes while visible.