feat: fork session support (#7367)

packages/frontend/graphql/src/graphql/fork-copilot-session.gql

@@ -0,0 +1,3 @@
+mutation forkCopilotSession($options: ForkChatSessionInput!) {
+  forkCopilotSession(options: $options)
+}

packages/frontend/graphql/src/graphql/index.ts

@@ -241,6 +241,17 @@ mutation removeEarlyAccess($email: String!) {
 }`,
 };
 
+export const forkCopilotSessionMutation = {
+  id: 'forkCopilotSessionMutation' as const,
+  operationName: 'forkCopilotSession',
+  definitionName: 'forkCopilotSession',
+  containsFile: false,
+  query: `
+mutation forkCopilotSession($options: ForkChatSessionInput!) {
+  forkCopilotSession(options: $options)
+}`,
+};
+
 export const getCopilotHistoriesQuery = {
   id: 'getCopilotHistoriesQuery' as const,
   operationName: 'getCopilotHistories',