Gladiator arena: gold economy, outfitting shop, permadeath runs

Turns the sandbox into a survival roguelike loop: outfit your gladiator
with banked gold, enter the arena, earn gold from kills and wave clears,
die, keep 10% of your total value (floored at the 500 fresh-start).

Economy (GameState autoload):
- banked_gold, owned items, and loadout persist to user://save.cfg
- Kill gold (basic 10g, armed 25g) credited server-side to the killer
- Wave-clear bonus (25 + 5/wave) for all players; wave synced to peers
- Death settlement liquidates gear, guarded against double-fire

Character creation / shop:
- Menu reframed: armory shop + live Character Sheet loadout preview
- Character Sheet gains preview mode (renders from loadout, no player)
- Buy/Equip with hand rules; two-handers and off-hands displace each
  other symmetrically (shop and in-game pickups)
- Chosen loadout auto-equips on spawn via existing RPC path

Combat feel:
- Attacks snap to camera facing and lock direction for the swing
- Dash commits to its direction for the full duration
- Weapon slots show name text when no icon is set
- Hitbox/hurtbox debug meshes hidden by default (H toggles)

Death is final: players no longer respawn; a results screen shows waves,
time, kills, and the settlement, then returns to camp. Armed enemies no
longer respawn (were an infinite gold farm and respawned invisible).

level/ui/scripts/weapon_slot.gd

@@ -5,6 +5,8 @@ class_name WeaponSlot
 # References
 @onready var icon_rect: TextureRect = $SlotPanel/MarginContainer/IconRect
 var tooltip: PanelContainer = null
+# Fallback name display for weapons without an icon texture
+var _name_label: Label = null
 
 # Weapon data
 var weapon_data: WeaponData = null
@@ -53,9 +55,43 @@ func _update_display():
 	if weapon_data and weapon_data.icon:
 		icon_rect.texture = weapon_data.icon
 		icon_rect.modulate = Color.WHITE
+		_set_name_fallback("")
+	elif weapon_data:
+		# No icon on this weapon - show its name in the slot instead
+		icon_rect.texture = null
+		icon_rect.modulate = Color.WHITE
+		_set_name_fallback(weapon_data.weapon_name)
 	else:
 		icon_rect.texture = null
 		icon_rect.modulate = Color(0.3, 0.3, 0.3, 0.5)  # Dim empty slot
+		_set_name_fallback("")
+
+## Show/hide the fallback name label ("" hides it)
+func _set_name_fallback(text: String):
+	if text == "":
+		if _name_label:
+			_name_label.hide()
+		return
+
+	if not _name_label:
+		_name_label = Label.new()
+		_name_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
+		_name_label.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
+		_name_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
+		_name_label.add_theme_font_size_override("font_size", 12)
+		_name_label.add_theme_color_override("font_color", Color(1.0, 0.85, 0.4))
+		_name_label.add_theme_color_override("font_outline_color", Color.BLACK)
+		_name_label.add_theme_constant_override("outline_size", 2)
+		_name_label.set_anchors_preset(Control.PRESET_FULL_RECT)
+		_name_label.mouse_filter = Control.MOUSE_FILTER_IGNORE
+		var container = get_node_or_null("SlotPanel/MarginContainer")
+		if container:
+			container.add_child(_name_label)
+		else:
+			add_child(_name_label)
+
+	_name_label.text = text
+	_name_label.show()
 
 ## Show tooltip on mouse enter
 func _on_mouse_entered():