Add the Mage Training Arena - #1282

Each player gets a private copy of region 13463 with one of ten mazes. Casting
Telekinetic Grab on the statue slides it towards whichever side of the maze the
player stands on until a wall stops it; reaching the exit square awards two
points, spawns the Maze Guardian and every fifth maze in a row adds eight
points, ten law runes and Magic experience. The statue's Observe option moves
the camera above the maze.

Cupboard contents rotate and item values reshuffle on a world timer while
anyone is in the room, with one item periodically free to convert. Alching the
arena items produces arena coins that the coin collector turns into points,
Magic experience and a banked reward capped at 1000 coins on the way out.
Normal alchemy is refused inside the playground.

Shapes taken from the four piles enchant into orbs with any enchant spell at
three quarters of the usual experience. Every tenth shape scores the spell's
level in points, the bonus shape shouted by the guardian adds one, and the six
private dragonstones score double straight away. Twenty orbs in the hole
reward a handful of death, blood or cosmic runes.

Bone piles hand out four animals' bones before changing type, Bones to
Bananas/Peaches converts each type into one to four fruit inside the room, and
sixteen fruit through the food chute earn a point, Magic experience and a rune.
Bones fall on everyone in the room every ten ticks and dying there costs up to
ten Graveyard points. Bones to Bananas/Peaches tablets gain a Break option,
which is refused inside the arena.

The Rewards Guardian's Trade-with option opens interface 197 backed by
inventory 347; the client fills the point labels from the varbits and marks
wand upgrades itself. Buying deducts the price from all four point pools, wand
upgrades consume the previous tier, the arena book costs coins and Bones to
Peaches sets the unlock varbit that the spellbook cast now requires.

The hat's equipment option was only registered for the inventory. Observe and
Reset on the guardian statue tried to walk to it, which the maze walls prevent;
they now run as approach interactions from up to ten tiles away like the
Telekinetic Grab cast itself.

The room overlays were typed as full-screen overlays (root child 7 in both
display modes), which the resizable layout doesn't show. Use the same
game_screen_overlay parent as the fight cave and Barrows overlays.

Pre-quest lines for Wizard Shug, Apprentice Clerval, Wizard Dougal and Wizard
Edvin. Rune Mechanics itself is not implemented, so Clerval's conversation
stops short of offering the quest.

Each room's guardian is its controller: its soft timer rotates the
cupboards, changes the bonus shape and drops the bones, and it holds the
room state (item values, rotation, free item, bonus shape) as NPC
variables instead of static companion fields. The world timers and the
start-on-entry / cancel-when-empty logic are gone; the timers run for the
guardian's lifetime like any other NPC timer.

Only what another class uses stays in a companion: the lobby tile, the
in-room check, the progress hat check and the shared portal rules
(canEnter). The Telekinetic Theatre owns its own portal now, so its
per-player statue and guardian state lives on the script instance and
nothing in the package exports maze, hat tier or item helpers globally.