feat(sdk): AuthConfigs, JSON Schema, examples, and release checksum CI

Add craftlabs-auth-config.schema.json, Java AuthConfigs model with tests,
example configs aligned to BP-10, C/Java/auth-config documentation,
native header notes, RELEASING guide, and workflow to verify SDK
artifact checksums on release tags.

Made-with: Cursor

examples/java/ExampleApp.java

@@ -1,9 +1,14 @@
 import cn.craftlabs.auth.AuthProvider;
 import cn.craftlabs.auth.AuthResult;
 import cn.craftlabs.auth.bitanswer.BitAnswerProvider;
+import cn.craftlabs.auth.config.AuthConfig;
+import cn.craftlabs.auth.config.AuthConfigException;
+import cn.craftlabs.auth.config.AuthConfigs;
 
 /**
- * 演示：通过 {@link BitAnswerProvider} 完成初始化与许可校验。
+ * 演示：校验 {@code config_json} 后初始化并完成许可校验。
+ *
+ * <p>编译时需将 {@code craftlabs-auth-core} 与 Jackson 置于 classpath（与 Maven 模块依赖一致）。
  *
  * <p>版权所有 © 广州创飞人工智能技术有限公司
  *
@@ -11,8 +16,30 @@ import cn.craftlabs.auth.bitanswer.BitAnswerProvider;
  */
 public class ExampleApp {
     public static void main(String[] args) {
+        String json =
+                """
+                {
+                  "schemaVersion": 1,
+                  "provider": "bitanswer",
+                  "scenario": "school",
+                  "bitanswer": { "url": "https://example.invalid/bitanswer", "loginMode": "AUTO" },
+                  "features": {
+                    "face": { "bitanswerFeatureId": 201 },
+                    "expression": { "bitanswerFeatureId": 202 }
+                  },
+                  "school": { "edgeDeviceId": "demo-edge-01", "tenantId": "demo-tenant" }
+                }
+                """;
+        try {
+            AuthConfig cfg = AuthConfigs.parse(json);
+            System.out.println("scenario=" + cfg.scenario() + ", face id=" + cfg.bitanswerFeatureId("face"));
+        } catch (AuthConfigException e) {
+            System.err.println("config invalid: " + e.getMessage());
+            return;
+        }
+
         try (AuthProvider p = new BitAnswerProvider()) {
-            AuthResult r = p.initialize("{}");
+            AuthResult r = p.initialize(json);
             System.out.println("init: " + r.isSuccess() + " " + r.getMessage());
             r = p.checkLicense();
             System.out.println("check: " + r.isSuccess() + " " + r.getMessage());