feat: impression galerie utilisateur (enable/quota/max_copies)

backend/services/config_service.py

@@ -83,6 +83,10 @@ class PrintConfig:
     script_path: str = "/home/pi/photobooth-data/script/script_print.sh"
     default_copies: int = 1
     printers: list = field(default_factory=list)
+    # Impression depuis la galerie utilisateur
+    user_print_enabled: bool = False
+    user_print_quota: int = 0        # 0 = illimité
+    user_print_max_copies: int = 1   # copies max par demande
 
 
 @dataclass
@@ -209,6 +213,21 @@ class ConfigService:
             self._config.event.slug = slug
             self._config.event.started_at = started_at
 
+    def save_user_print_config(self, enabled: bool, quota: int, max_copies: int):
+        with open(self.path, encoding="utf-8") as f:
+            raw = yaml.safe_load(f) or {}
+        raw.setdefault("print", {}).update({
+            "user_print_enabled": enabled,
+            "user_print_quota": quota,
+            "user_print_max_copies": max_copies,
+        })
+        with open(self.path, "w", encoding="utf-8") as f:
+            yaml.dump(raw, f, allow_unicode=True, default_flow_style=False)
+        if self._config:
+            self._config.print.user_print_enabled = enabled
+            self._config.print.user_print_quota = quota
+            self._config.print.user_print_max_copies = max_copies
+
     def save_print_mode(self, mode: str):
         with open(self.path, encoding="utf-8") as f:
             raw = yaml.safe_load(f) or {}