fix error in gitignore

apps/core/settings_service.py

@@ -0,0 +1,51 @@
+"""Runtime settings service.
+
+Resolution order per key: database value → environment variable → schema
+default. Writing a value persists it to the database, so changes take effect
+immediately without a restart.
+"""
+import os
+
+from apps.core.models import SystemSetting
+from apps.core.settings_registry import SCHEMA_BY_KEY, SETTINGS_SCHEMA
+
+
+class SettingsService:
+    def schema(self):
+        return SETTINGS_SCHEMA
+
+    def _env_key(self, key: str) -> str:
+        return key.upper().replace(".", "_")
+
+    def get(self, key: str, default=None):
+        setting = SystemSetting.objects.filter(key=key).first()
+        if setting is not None:
+            return setting.value
+
+        env_value = os.environ.get(self._env_key(key))
+        if env_value is not None:
+            return env_value
+
+        entry = SCHEMA_BY_KEY.get(key)
+        if entry and "default" in entry:
+            return entry["default"]
+        return default
+
+    def get_bool(self, key: str, default=False) -> bool:
+        value = self.get(key, default)
+        if isinstance(value, bool):
+            return value
+        return str(value).lower() in {"1", "true", "yes", "on"}
+
+    def set(self, key: str, value) -> None:
+        SystemSetting.objects.update_or_create(key=key, defaults={"value": value})
+
+    def all_values(self, mask_secrets: bool = True) -> dict:
+        result = {}
+        for entry in SETTINGS_SCHEMA:
+            value = self.get(entry["key"])
+            if mask_secrets and entry.get("type") == "secret" and value:
+                result[entry["key"]] = "••••••"
+            else:
+                result[entry["key"]] = value
+        return result