v1.3.0

New Features

Freecam

• Added a freecam: press its keybind to detach the camera from your player and fly it around freely to look at
  your surroundings — WASD to move, Space/Shift for up/down, the mouse to look, and the scroll wheel to change
  speed. Press it again to return to normal; your character stays put the whole time. The keybind lives under a
  new Hex category in Options → Controls (unbound by default), and the Freecam tab of /hexa config
  lets you enable/disable the feature and pick a base fly speed.

Improvements

Keybinds

• Hex's keybinds now live under their own Hex category in Options → Controls instead of being mixed into
  Misc — the config, keybinds and freecam binds are grouped together.
• Added a rebindable keybind to open the Hex config menu (Options → Controls → Hex), alongside /hexa config.

Technical Details

Freecam

• Added the project's first mixins (CameraMixin, ClientInputMixin, KeyboardInputMixin,
  MouseHandlerMixin). The camera is repositioned right after Camera#alignWithEntity — before the cull
  frustum is built — so chunk culling follows the freecam wherever it flies; mouse look and scroll are
  redirected, the move vector is forced to zero, and the key-press record is blanked so the real player never
  moves or sends input to the server.
• Added a reusable CycleEntry multiple-choice control to the config-menu framework (a new ConfigEntry
  subtype plus a cycle(...) builder), and a dedicated "Hex" KeyMapping.Category.