fix: preserve staged and unstaged changes per file (#3104)

apps/web/components/task/changes-diff-target.ts

@@ -1,4 +1,7 @@
+import type { GitChangeLayer } from "@/lib/state/slices/session-runtime/types";
+
 export type DiffSource = "uncommitted" | "committed" | "pr";
+export type ChangeLayer = GitChangeLayer;
 
 export type LocalCommitDetailTarget = {
   source: "local";
@@ -23,6 +26,7 @@ export type OpenDiffOptions = {
   source?: DiffSource;
   repositoryName?: string;
   prKey?: string;
+  changeLayer?: ChangeLayer;
 };
 
 export type DiffSheetMode =
@@ -33,5 +37,6 @@ export type DiffSheetMode =
       sourceFilter?: "all" | DiffSource;
       repositoryName?: string;
       prKey?: string;
+      changeLayer?: ChangeLayer;
     }
   | { kind: "commit"; target: CommitDetailTarget };