add: 增加用于android release版本签名的配置

android/app/build.gradle

@@ -108,6 +108,14 @@ android {
             abiFilters "armeabi-v7a", "x86"
         }
     }
+    signingConfigs {
+        release {
+            storeFile file("app.jks")
+            storePassword "proland305$"
+            keyAlias "app-alias"
+            keyPassword "proland305$"
+        }
+    }
     splits {
         abi {
             reset()