Extra usage: afficher le restant en priorite (restant / utilise / plafond)

backend/integrations/claude_usage.py

@@ -72,12 +72,22 @@ class ExtraUsage:
     limit: float | None
     currency: str = "EUR"
 
+    @property
+    def remaining(self) -> float | None:
+        """Crédits extra encore disponibles avant le plafond mensuel."""
+        if self.limit is None:
+            return None
+        return max(0.0, self.limit - self.used)
+
     @property
     def label(self) -> str:
         sym = "€" if self.currency == "EUR" else self.currency
         if self.limit:
-            return f"Extra : {self.used:.0f}{sym} / {self.limit:.0f}{sym}"
+            return (
-        return f"Extra : {self.used:.0f}{sym}"
+                f"Extra : {self.remaining:.0f}{sym} restant"
+                f" · {self.used:.0f}{sym} utilisé / {self.limit:.0f}{sym}"
+            )
+        return f"Extra : {self.used:.0f}{sym} utilisé"
 
 
 @dataclass