Refactor GameMode and Players into skirmish_states

Move the GameMode and Players enums from the top‑level states module
into the
skirmish_states submodule, add an Unclaimed variant to Players, and
update all
imports, trait implementations, and related logic accordingly. Adjust
the
durability percentage calculation to use u32 for safety.

src/app/states/skirmish_states/units/miner.rs

@@ -1,4 +1,4 @@
-use crate::app::states::{Players, skirmish_states::units::Unit};
+use crate::app::states::skirmish_states::{Players, units::Unit};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct MinerUnit {

src/app/states/skirmish_states/units/units_enum.rs

@@ -1,6 +1,6 @@
-use crate::app::states::{
+use crate::app::states::skirmish_states::{
     Players,
-    skirmish_states::units::{MinerUnit, Unit},
+    units::{MinerUnit, Unit},
 };
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -40,6 +40,6 @@ impl Unit for Option<Units> {
     }
 
     fn get_owner(&self) -> Players {
-        self.map_or(Players::Enemy, |u| u.get_owner())
+        self.map_or(Players::Unclaimed, |u| u.get_owner())
     }
 }

src/app/states/skirmish_states/units/units_trait.rs

@@ -1,4 +1,4 @@
-use crate::app::states::Players;
+use crate::app::states::skirmish_states::Players;
 
 pub trait Unit {
     fn get_owner(&self) -> Players;