add fields to create auth clients

Supports creating oauth clients
Updates: tailscale/tailscale#9632

Author: mcoulombe

keys.go

@@ -77,7 +77,7 @@ func (kr *KeysResource) CreateAuthKey(ctx context.Context, ckr CreateKeyRequest)
 // CreateOAuthClient creates a new OAuth client. Returns the generated [Key] if successful.
 func (kr *KeysResource) CreateOAuthClient(ctx context.Context, ckr CreateOAuthClientRequest) (*Key, error) {
 	req, err := kr.buildRequest(ctx, http.MethodPost, kr.buildTailnetURL("keys"), requestBody(createOAuthClientWithKeyTypeRequest{
-		KeyType:                  "oauthclient",
+		KeyType:                  "client",
 		CreateOAuthClientRequest: ckr,
 	}))
 	if err != nil {

keys_test.go

@@ -156,7 +156,7 @@ func TestClient_CreateOAuthClient(t *testing.T) {
 
 	var actualReq createOAuthClientWithKeyTypeRequest
 	assert.NoError(t, json.Unmarshal(server.Body.Bytes(), &actualReq))
-	assert.EqualValues(t, "oauthclient", actualReq.KeyType)
+	assert.EqualValues(t, "client", actualReq.KeyType)
 	assert.EqualValues(t, 1, len(actualReq.Scopes))
 	assert.EqualValues(t, "all:read", actualReq.Scopes[0])
 	assert.EqualValues(t, 1, len(actualReq.Tags))