style: apply gdformat formatting across the entire project

Auto-format all GDScript files using gdformat from gdtoolkit.
This is a baseline formatting pass to ensure consistent style:

- Normalizes indentation and spacing
- Wraps long lines to 100 characters
- Removes trailing whitespace
- Standardizes blank lines between functions

68 files reformatted, 8 files left unchanged (3rd-party addon files
with parse errors excluded).

tools/generate_terrain_textures.gd

@@ -3,11 +3,13 @@ extends Node
 
 const TEXTURE_DIR := "res://terrain/jajce/textures"
 
+
 func _ready() -> void:
 	if not Engine.is_editor_hint():
 		return
 	call_deferred("generate")
 
+
 func generate() -> void:
 	var dir := DirAccess.open(TEXTURE_DIR)
 	if not dir:
@@ -19,6 +21,7 @@ func generate() -> void:
 
 	print("[TerrainTextureGenerator] Generated 3 terrain textures")
 
+
 func _generate_texture(file_name: String, dark: Color, light: Color, seed_val: int) -> void:
 	seed(seed_val)
 	var grid_size := 16