feat: AI平台适配器（DeepSeek/Kimi/Open余额查询+Minimax骨架）+ capabilities按钮控制，测试17项通过

app/adapters/registry.py

@@ -26,6 +26,7 @@ def register(*sdk_types: str):
 def load_all() -> None:
     """导入所有适配器模块以触发注册（幂等）"""
     from app.adapters import (  # noqa: F401
+        ai,
         aliyun,
         cloudflare,
         digitalocean,
@@ -53,6 +54,18 @@ def supported_types() -> list:
     return sorted(_REGISTRY.keys())
 
 
+def sdk_capabilities() -> dict:
+    """返回 sdk_type -> capabilities 映射（供前端判断测试/同步按钮）"""
+    load_all()
+    result = {}
+    for sdk_type, cls in _REGISTRY.items():
+        try:
+            result[sdk_type] = cls({}).capabilities()
+        except Exception:  # noqa: BLE001
+            result[sdk_type] = {}
+    return result
+
+
 def adapter_meta() -> list:
     """返回所有已注册适配器的元信息（供前端展示所需凭证字段与能力）"""
     load_all()