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).

simulation/actions/ActionExecutionSystem.gd

@@ -1,6 +1,7 @@
 class_name ActionExecutionSystem
 extends RefCounted
 
+
 func advance_npc(npc: SimNPC, village: SimVillage) -> void:
 	if npc.is_dead:
 		return
@@ -12,6 +13,7 @@ func advance_npc(npc: SimNPC, village: SimVillage) -> void:
 		npc.task_complete = true
 		npc.task_state = SimNPC.TASK_STATE_COMPLETE
 
+
 func _update_needs(npc: SimNPC, village: SimVillage) -> void:
 	npc.hunger += 3.0 * village.food_modifier
 	match npc.task_state: