v0.2.1 — auto-update fix + quick Settings/help access

Fixes

• Auto-update now works while HDT is running. The previous build couldn't replace its own in-use files and reported "Update couldn't be installed automatically." It now renames locked files aside and applies the new ones on restart.
  • ⚠️ One-time manual step: if you're on 0.1.1 or 0.2.0, that older updater still can't self-replace — install this version manually once (extract the zip, run install.bat). After that, future updates apply on their own.

New

• Quick access in the card detail pane — a small toolbar with a ⚙ Settings button, a ? for keybinds & tips, and the version number. No more digging through HDT's options to find Settings.

Also in 0.2.x

• Drag any card out of the overlay as a free-floating, resizable card.
• Live trinkets & anomaly HUD during a match (opt-in in Settings).
• Mana-cost search filter (cost 2).