Add escape menu and weapon slot tooltips to character sheet

- Escape Menu:
  - Opens with Escape key from base game screen
  - Resume button to return to game
  - Exit Game button to quit application
  - Character sheet closes with Escape if open (takes priority)
  - Mouse capture/release handled by UI components

- Weapon Slot System:
  - Visual weapon boxes (80x80) in character sheet
  - Display weapon icons from WeaponData
  - Empty slots appear dimmed
  - Hover tooltips show weapon stats (not clipped by containers)
  - Tooltips display: slot name, weapon name, damage, range, cooldown, knockback, block percentage
  - Tooltips positioned globally to avoid ScrollContainer clipping

- Bug Fixes:
  - Fixed typo in lilguy_body.gd (dwextends -> extends)
  - Removed manual mouse toggle from player (now handled by UI)

- Updated character_sheet.gd to use weapon slot components instead of text labels
- Added weapon_tooltip.tscn as separate scene for unclipped tooltips

level/ui/scenes/weapon_slot.tscn

@@ -0,0 +1,44 @@
+[gd_scene load_steps=4 format=3 uid="uid://dnwg8b7xmh5qa"]
+
+[ext_resource type="Script" path="res://level/ui/scripts/weapon_slot.gd" id="1_script"]
+[ext_resource type="Theme" uid="uid://dvsh7tuhulnfm" path="res://level/ui/theme/wow_style.tres" id="2_theme"]
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_slot"]
+bg_color = Color(0.15, 0.15, 0.15, 0.9)
+border_width_left = 2
+border_width_top = 2
+border_width_right = 2
+border_width_bottom = 2
+border_color = Color(0.6, 0.5, 0.2, 1)
+corner_radius_top_left = 4
+corner_radius_top_right = 4
+corner_radius_bottom_right = 4
+corner_radius_bottom_left = 4
+
+[node name="WeaponSlot" type="Control"]
+custom_minimum_size = Vector2(80, 80)
+mouse_filter = 0
+theme = ExtResource("2_theme")
+script = ExtResource("1_script")
+
+[node name="SlotPanel" type="PanelContainer" parent="."]
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+mouse_filter = 2
+theme_override_styles/panel = SubResource("StyleBoxFlat_slot")
+
+[node name="MarginContainer" type="MarginContainer" parent="SlotPanel"]
+layout_mode = 2
+theme_override_constants/margin_left = 4
+theme_override_constants/margin_top = 4
+theme_override_constants/margin_right = 4
+theme_override_constants/margin_bottom = 4
+
+[node name="IconRect" type="TextureRect" parent="SlotPanel/MarginContainer"]
+layout_mode = 2
+expand_mode = 1
+stretch_mode = 5