Let flyers path over water and lava everywhere

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/dwarves.rs

@@ -195,7 +195,7 @@ impl Game {
             e.repath = 3.0 + self.rng.f() * 4.0;
             let (tx, ty) = if from_home(e.x, e.y) > 3.0 { (hx, hy) } else { (hx + self.rng.f() * 4.0 - 2.0, hy + self.rng.f() * 4.0 - 2.0) };
             if self.map.walk(tx as i32, ty as i32) {
-                if let Some(p) = self.map.path_to(e.tile(), idx(tx as i32, ty as i32)) {
+                if let Some(p) = self.map.creature_path(flies(e.kind), e.tile(), idx(tx as i32, ty as i32)) {
                     e.path = p;
                 }
             }