merge with recent branch

Author: SoldierSacha

src/mcp/shared/auth.py

@@ -122,7 +122,20 @@ class OAuthMetadata(BaseModel):
     registration_endpoint: AnyHttpUrl | None = None
     scopes_supported: list[str] | None = None
     response_types_supported: list[str] = ["code"]
-    response_modes_supported: list[Literal["query", "fragment", "form_post"]] | None = None
+    response_modes_supported: (
+        list[
+            Literal[
+                "query",
+                "fragment",
+                "form_post",
+                "query.jwt",
+                "fragment.jwt",
+                "form_post.jwt",
+                "jwt",
+            ]
+        ]
+        | None
+    ) = None
     grant_types_supported: (
         list[
             Literal[