feat(backend): enhance instance management for editor support

- Sync instance.version_id after start_game, install_fabric, install_forge
- Add jvm_args_override and memory_override to Instance struct
- Add file management commands: list_instance_directory, delete_instance_file, open_file_explorer
- Support per-instance settings overrides (Java args, memory)

1 files changed, 7 insertions, 0 deletions

diff --git a/ui/src/types/index.ts b/ui/src/types/index.ts
index 858ee43..6632d58 100644
--- a/ui/src/types/index.ts
+++ b/ui/src/types/index.ts
@@ -214,4 +214,11 @@ export interface Instance {
   notes?: string;
   mod_loader?: string;
   mod_loader_version?: string;
+  jvm_args_override?: string;
+  memory_override?: MemoryOverride;
+}
+
+export interface MemoryOverride {
+  min: number; // MB
+  max: number; // MB
 }