feat: check for name conflict on file/dir move

Co-authored-by: Ona <no-reply@ona.com>

packages/convex/model/error.ts

@@ -1,15 +1,17 @@
 import { ConvexError } from "convex/values"
 
-export enum Code {
+    export enum Code {
 	Conflict = "Conflict",
 	DirectoryExists = "DirectoryExists",
 	DirectoryNotFound = "DirectoryNotFound",
 	FileExists = "FileExists",
+	FileNotFound = "FileNotFound",
 	Internal = "Internal",
 	Unauthenticated = "Unauthenticated",
 }
 
-export type ApplicationError = ConvexError<{ code: Code; message?: string }>
+export type ApplicationErrorData = { code: Code; message?: string }
+export type ApplicationError = ConvexError<ApplicationErrorData>
 
 export function isApplicationError(error: unknown): error is ApplicationError {
 	return error instanceof ConvexError && "code" in error.data
@@ -22,3 +24,11 @@ export function create(code: Code, message?: string): ApplicationError {
 			code === Code.Internal ? "Internal application error" : message,
 	})
 }
+
+export function createJson(code: Code, message?: string): ApplicationErrorData {
+	return {
+		code,
+		message:
+			code === Code.Internal ? "Internal application error" : message,
+	}
+}