feat: extend Java config, Schema, and DB for selfhosted licensing SDK

schemas/craftlabs-auth-config.schema.json

@@ -61,6 +61,24 @@
         "tenantKey": {
           "type": "string",
           "description": "可选；租户或调用方标识。"
+        },
+        "offlineGraceDays": {
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 365,
+          "default": 7,
+          "description": "离线宽限期（天），断网后允许继续使用的最大天数。"
+        },
+        "heartbeatIntervalHours": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 720,
+          "default": 24,
+          "description": "心跳间隔（小时）。"
+        },
+        "publicKeyPem": {
+          "type": "string",
+          "description": "可选；RSA 公钥 PEM。不填则使用 SDK 内嵌公钥。"
         }
       }
     },
@@ -72,7 +90,8 @@
         "additionalProperties": false,
         "properties": {
           "bitanswerFeatureId": { "type": "integer" },
-          "bitanswerFeatureName": { "type": "string" }
+          "bitanswerFeatureName": { "type": "string" },
+          "selfhostedFeatureKey": { "type": "string" }
         }
       }
     },