feat(enemy): sistema d'events declaratius via YAML

data/entities/pentagon/pentagon.yaml

@@ -53,3 +53,16 @@ colors:
   wounded: [255, 220, 60]   # Daurat (parpelleig al rebre impacte)
 
 score: 100
+
+events:
+  # Comportament clàssic: dos impactes per matar (set_hurt entra wounded;
+  # el segon hit detecta wounded i destrueix automàticament).
+  on_hit:
+    - action: apply_impulse
+    - action: set_hurt
+  on_hurt_end:
+    - action: destroy
+  on_destroy:
+    - action: add_score
+    - action: create_debris
+    - action: create_fireworks

data/entities/pinwheel/pinwheel.yaml

@@ -53,3 +53,14 @@ colors:
   wounded: [255, 220, 60]
 
 score: 200
+
+events:
+  on_hit:
+    - action: apply_impulse
+    - action: set_hurt
+  on_hurt_end:
+    - action: destroy
+  on_destroy:
+    - action: add_score
+    - action: create_debris
+    - action: create_fireworks

data/entities/square/square.yaml

@@ -53,3 +53,14 @@ colors:
   wounded: [255, 220, 60]
 
 score: 150
+
+events:
+  on_hit:
+    - action: apply_impulse
+    - action: set_hurt
+  on_hurt_end:
+    - action: destroy
+  on_destroy:
+    - action: add_score
+    - action: create_debris
+    - action: create_fireworks

data/entities/star/star.yaml

@@ -53,3 +53,13 @@ colors:
   wounded: [255, 220, 60]
 
 score: 100
+
+events:
+  # STAR: mor al primer impacte, sense passar per wounded.
+  on_hit:
+    - action: apply_impulse
+    - action: destroy
+  on_destroy:
+    - action: add_score
+    - action: create_debris
+    - action: create_fireworks