Convert all VisualShaders to plain Shaders; clean editor noise

Godot 4 emits two unavoidable warnings every time it reconstructs a
Godot-3-authored VisualShader graph: 'graph_offset property is
deprecated' (the editor's pan position, removed in 4.x) and
'connect_nodes_forced: Index p_from_port = 1 is out of bounds'
(node-graph ports that no longer line up). The compiled GLSL inside
each ShaderMaterial is correct; only the graph reconstruction is
broken.

scripts/devisualize_shaders.gd walks every .material, .tres, and
.mesh under res:// and replaces ShaderMaterial.shader from
VisualShader to a plain Shader carrying the same .code. 15 materials
converted (font outline, dissolve, color tints, book/candle/godet/
growler/parchment/rock-floor/stool/table). Godot now loads the
compiled shader directly with no graph reconstruction → both
warnings gone, rendering identical.

Also:
- scripts/resave_scenes.gd: load + re-save every .tscn so inline
  ArrayMesh sub-resources (notably WarCraft.tscn::17, the baked
  floor) move from Godot-3 PoolByteArray to Godot-4 PackedByteArray
  surface format. Silences 'Mesh uses old surface format'.
- scripts/find_visualshaders.gd: companion audit tool that lists
  every Resource still backed by a VisualShader. Useful if new
  legacy materials get added.
- Drop the now-orphan inline VisualShader / ShaderMaterial sub-
  resources (id 1..17) from Summary.tscn. The PanelWood lost its
  screen-blend tint material; a plain Panel renders fine and the
  effect can be re-authored as a hand-written shader if wanted.
- Add releases/.gdignore and tighten .gitignore so Godot stops
  warning 'Detected another project.godot at res://releases'. The
  releases/ directory has its own placeholder project.godot which
  Godot would otherwise flag at every editor open.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scenes/levels/parts/ListObjects.tscn

@@ -1,34 +1,36 @@
-[gd_scene load_steps=8 format=2]
+[gd_scene format=3]
 
-[ext_resource path="res://assets/ui/themes/leather.theme" type="Theme" id=2]
-[ext_resource path="res://assets/fonts/kirsty/kirsty_base.tres" type="FontFile" id=3]
-[ext_resource path="res://assets/ui/icones/skull.png" type="Texture2D" id=4]
-[ext_resource path="res://assets/ui/themes/UI-Button-ItemsList-last-hover.png" type="Texture2D" id=6]
-[ext_resource path="res://assets/ui/themes/UI-Button-ItemsList-last.png" type="Texture2D" id=8]
+[ext_resource type="Theme" path="res://assets/ui/themes/leather.theme" id="2"]
+[ext_resource type="FontVariation" path="res://assets/fonts/kirsty/kirsty_base.tres" id="3"]
+[ext_resource type="Texture2D" path="res://assets/ui/icones/skull.png" id="4"]
+[ext_resource type="Texture2D" path="res://assets/ui/themes/UI-Button-ItemsList-last-hover.png" id="6"]
+[ext_resource type="Texture2D" path="res://assets/ui/themes/UI-Button-ItemsList-last.png" id="8"]
 
-[sub_resource type="Animation" id=1]
+[sub_resource type="Animation" id="1"]
 resource_name = "ObjectFind"
 tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
 tracks/0/path = NodePath("ListContainer/TextureButtonLast/Label:position:x")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
-tracks/0/imported = false
-tracks/0/enabled = true
 tracks/0/keys = {
-"points": PackedFloat32Array( 0, -0.25, 0, 0, 78.1, 34.9, -0.25, 0, 0, -66, 12.1, 0, 73.2, 0, -124.8, -41.9, -0.0948485, 109.2, 0.0619706, -58.8, 13.3, -0.187989, 93.6, 0.196425, 104.4, 0, -0.154843, -135.5, 0.25, 0 ),
-"times": PackedFloat32Array( 0, 0.2, 0.4, 0.6, 0.8, 1 )
+"handle_modes": PackedInt32Array(0, 0, 0, 0, 0, 0),
+"points": PackedFloat32Array(0, -0.25, 0, 0, 78.1, 34.9, -0.25, 0, 0, -66, 12.1, 0, 73.2, 0, -124.8, -41.9, -0.0948485, 109.2, 0.0619706, -58.8, 13.3, -0.187989, 93.6, 0.196425, 104.4, 0, -0.154843, -135.5, 0.25, 0),
+"times": PackedFloat32Array(0, 0.2, 0.4, 0.6, 0.8, 1)
 }
 
-[sub_resource type="Animation" id=2]
+[sub_resource type="Animation" id="2"]
 tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
 tracks/0/path = NodePath("ListContainer/TextureButtonLast:position:x")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
-tracks/0/imported = false
-tracks/0/enabled = true
 tracks/0/keys = {
-"points": PackedFloat32Array( 0, -0.25, 0, 0.0305311, 190.492, 170, -0.349132, 2.57608, 0.25, 0 ),
-"times": PackedFloat32Array( 0, 1 )
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(0, -0.25, 0, 0.0305311, 190.492, 170, -0.349132, 2.57608, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
 }
 
 [node name="Control" type="MarginContainer"]
@@ -49,7 +51,7 @@ __meta__ = {
 [node name="ListContainer" type="VBoxContainer" parent="."]
 offset_right = 196.0
 offset_bottom = 900.0
-custom_minimum_size = Vector2( 196, 900 )
+custom_minimum_size = Vector2(196, 900)
 size_flags_horizontal = 3
 size_flags_vertical = 3
 theme_override_constants/separation = -14
@@ -61,15 +63,15 @@ offset_top = 409.0
 offset_right = 196.0
 offset_bottom = 490.0
 focus_mode = 0
-texture_normal = ExtResource( 8 )
-texture_hover = ExtResource( 6 )
-texture_focused = ExtResource( 6 )
+texture_normal = ExtResource("8")
+texture_hover = ExtResource("6")
+texture_focused = ExtResource("6")
 
 [node name="Label" type="Label" parent="ListContainer/TextureButtonLast"]
 anchor_right = 1.0
 anchor_bottom = 1.0
-theme = ExtResource( 2 )
-theme_override_fonts/font = ExtResource( 3 )
+theme = ExtResource("2")
+theme_override_fonts/font = ExtResource("3")
 text = "Last"
 horizontal_alignment = 1
 vertical_alignment = 1
@@ -88,8 +90,8 @@ alignment = 1
 offset_left = 34.0
 offset_right = 162.0
 offset_bottom = 128.0
-texture_normal = ExtResource( 4 )
+texture_normal = ExtResource("4")
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
-anims/ObjectFind = SubResource( 1 )
-anims/ObjectFindAll = SubResource( 2 )
+anims/ObjectFind = SubResource("1")
+anims/ObjectFindAll = SubResource("2")