Traps and doors made in a new forge room, installed by imps; new creature: the cogling

- forge room: creatures work there (coglings fastest), the work goes into the oldest planned trap or door; finished pieces wait as crates, imps carry and install them
- traps: spike pit, poison vent (cloud), fire jet, stone roller, alarm bell (calls creatures), rune mine (one big blast), frost glow (slows around it)
- doors: wood, iron, magic (hurls attackers back); own creatures pass, enemies smash them on their way; clicking a door with a door tool locks it for everybody
- new 'Traps' category in the toolbar, forge in the rooms; texts EN/DE, bestiary entries; atlas grown for new textures and icons
- tests: forge to installed trap, spikes hurt, doors lock and get smashed

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

src/settings.rs

@@ -25,7 +25,7 @@ pub enum Action {
 }
 
 pub fn all_actions() -> Vec<Action> {
-    let mut v: Vec<Action> = (0..21).map(Action::Tool).collect();
+    let mut v: Vec<Action> = (0..crate::ui::TOOLS.len()).map(Action::Tool).collect();
     v.extend_from_slice(&[
         Action::CamForward,
         Action::CamBack,
@@ -70,7 +70,8 @@ impl Action {
     fn default_key(self) -> KeyCode {
         use KeyCode::*;
         match self {
-            Action::Tool(i) => [Key1, Key2, Key3, Key4, Key5, Key6, Key7, Key8, Key9, Key0, X, V, K, J, B, C, T, U, Y, O, N][i.min(20)],
+            // later tools have no key of their own (they can be bound in the settings)
+            Action::Tool(i) => [Key1, Key2, Key3, Key4, Key5, Key6, Key7, Key8, Key9, Key0, X, V, K, J, B, C, T, U, Y, O, N].get(i).copied().unwrap_or(Unknown),
             Action::CamForward => W,
             Action::CamBack => S,
             Action::CamLeft => A,
@@ -112,6 +113,9 @@ const KEY_NAMES: &[(KeyCode, &str)] = &[
 ];
 
 pub fn key_name(k: KeyCode) -> String {
+    if k == KeyCode::Unknown {
+        return "-".into();
+    }
     KEY_NAMES.iter().find(|(c, _)| *c == k).map(|(_, n)| n.to_string()).unwrap_or_else(|| "?".into())
 }