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/config/floating.bitanswer.json

@@ -0,0 +1,17 @@
+{
+  "schemaVersion": 1,
+  "provider": "bitanswer",
+  "scenario": "floating",
+  "bitanswer": {
+    "url": "https://cloud.bitanswer.example/e3",
+    "loginMode": "REMOTE"
+  },
+  "features": {
+    "face": { "bitanswerFeatureId": 301 }
+  },
+  "floating": {
+    "projectId": "migrant-flow-prj-2026-001",
+    "projectName": "某市流动人口人像核验",
+    "contractRef": "PO-2026-8848"
+  }
+}

examples/config/school.bitanswer.json

@@ -0,0 +1,18 @@
+{
+  "schemaVersion": 1,
+  "provider": "bitanswer",
+  "scenario": "school",
+  "bitanswer": {
+    "url": "https://cloud.bitanswer.example/e3",
+    "loginMode": "AUTO",
+    "sn": ""
+  },
+  "features": {
+    "face": { "bitanswerFeatureId": 201 },
+    "expression": { "bitanswerFeatureId": 202 }
+  },
+  "school": {
+    "edgeDeviceId": "classroom-gate-01",
+    "tenantId": "school-district-demo"
+  }
+}

examples/config/school.selfhosted.json

@@ -0,0 +1,16 @@
+{
+  "schemaVersion": 1,
+  "provider": "selfhosted",
+  "scenario": "school",
+  "selfhosted": {
+    "baseUrl": "https://license.internal.example/api/v1",
+    "tenantKey": "district-west"
+  },
+  "features": {
+    "face": {},
+    "expression": {}
+  },
+  "school": {
+    "edgeDeviceId": "gate-02"
+  }
+}

examples/config/wharf.bitanswer.json

@@ -0,0 +1,21 @@
+{
+  "schemaVersion": 1,
+  "provider": "bitanswer",
+  "scenario": "wharf",
+  "bitanswer": {
+    "url": "bit://license.example.com:8273",
+    "loginMode": "AUTO",
+    "rootPath": "/var/lib/craftlabs/bitanswer"
+  },
+  "features": {
+    "container_number_detect": { "bitanswerFeatureId": 101 },
+    "container_number_recognize": { "bitanswerFeatureId": 102 },
+    "iso_detect": { "bitanswerFeatureId": 103 },
+    "iso_recognize": { "bitanswerFeatureId": 104 }
+  },
+  "wharf": {
+    "topology": "group",
+    "groupServiceUrl": "bit://license.example.com:8273",
+    "notes": "边设备集中连集团服务；特征项与控制台产品一致后替换 id。"
+  }
+}