Git commit history (#1534)

* feat(app): add fileView preference for changes panel

* feat(app): add buildDiffTree util for changed-files tree

* feat(app): add changed-files tree directory row

* feat(app): changed-files tree view mode in changes panel (#117)

* feat(protocol): add checkout.commits.list RPC + commitsList feature flag

* feat(server): list branch commits ahead of base with on-remote flags

* feat(server): handle checkout.commits.list RPC and advertise capability

* feat(client): checkout.commits.list method + useCommitsQuery hook

* feat(app): per-commit inline view with local-vs-remote markers (#117)

* feat(protocol,server): per-commit file diff RPC (checkout.commits.file_diff)

* feat(app): open per-commit file diff on click (#117)

* refactor: surface baseRef + commits loading/error, drop dead depth field

* fix(app): flip commit local/remote dot — local hollow, remote filled

* feat(app): list/tree view for expanded commit file list (#117)

* fix(app): syntax-highlight per-commit file diff to match Changes view

* feat(app): draggable resize between commits and diff sections

* refactor(app): dedupe wrap-text helpers into diff-highlighted-text

* fix(app): clean up commits resize drag on unmount + a11y label

* fix(app): collapse commits section by default

* fix(app): render per-commit file diff with the shared Changes line renderer

* perf(app): memoize shared diff line row; drop redundant DiffLineView wrapper

* refactor(app): extract shared DiffFileBody; render commit file diff through it

* fix(app): hide inline-comment affordance in per-commit diffs (no reviewActions)

* feat(app): move commits to a resizable bottom drawer in the Changes panel

* feat(review): commitSha scoping for per-commit review drafts + attachment

* feat(app): per-commit inline comments wired through to the composer (#117)

* refactor(app): own commit file-diff open state in CommitFileList (drop reset effect)

* refactor(app): colocate diff-render cluster under git/diff-file-body/

* feat(app): add diff tab target kind (working/commit diff tabs)

* feat(app): useDiffFiles hook unifying working + commit diff targets

* feat(app): diff tab panel rendering working/commit diffs

* feat(app): open a commit diff tab on commit click; drop per-commit drawer/file list

* feat(app): open/scroll working diff tab on changed-file click

* fix(app): keep commit diff tabs ephemeral; align working diff whitespace

* feat(app): collapsible file sections in the diff tab, collapsed by default

* feat(app): make the on-remote commit dot more subtle

Dims the filled green remote dot (row + legend) to ~0.55 opacity so the
local-only ring stays the state that draws the eye.

* Reshape commit diffs around the existing Changes view

* Fix diff tab migration complexity after rebase

* Address diff tab review findings

* Clean up diff tab review interfaces

* Collapse commit diffs into the existing view

* Load commits when expanded

---------

Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>

packages/app/src/hooks/use-changes-preferences/storage.test.ts

@@ -31,6 +31,7 @@ describe("loadChangesPreferencesFromStorage", () => {
       viewMode: "flat",
       wrapLines: true,
       hideWhitespace: false,
+      commitsCollapsed: true,
     });
     expect(storage.entries.get(CHANGES_PREFERENCES_STORAGE_KEY)).toBe(JSON.stringify(result));
   });
@@ -53,12 +54,39 @@ describe("loadChangesPreferencesFromStorage", () => {
       viewMode: "tree",
       hideWhitespace: true,
       wrapLines: false,
+      commitsCollapsed: true,
     });
     expect(storage.entries.get(CHANGES_PREFERENCES_STORAGE_KEY)).toBe(persisted);
     expect(storage.entries.size).toBe(1);
   });
 });
 
+describe("changes preferences commitsCollapsed", () => {
+  it("collapses commits by default", () => {
+    expect(DEFAULT_CHANGES_PREFERENCES.commitsCollapsed).toBe(true);
+  });
+
+  it("round-trips commitsCollapsed: false", async () => {
+    const storage = createInMemoryKeyValueStorage({
+      [CHANGES_PREFERENCES_STORAGE_KEY]: JSON.stringify({ commitsCollapsed: false }),
+    });
+
+    const prefs = await loadChangesPreferencesFromStorage(storage);
+
+    expect(prefs.commitsCollapsed).toBe(false);
+  });
+
+  it("falls back to collapsed for invalid commitsCollapsed", async () => {
+    const storage = createInMemoryKeyValueStorage({
+      [CHANGES_PREFERENCES_STORAGE_KEY]: JSON.stringify({ commitsCollapsed: "nope" }),
+    });
+
+    const prefs = await loadChangesPreferencesFromStorage(storage);
+
+    expect(prefs.commitsCollapsed).toBe(true);
+  });
+});
+
 describe("saveChangesPreferences", () => {
   it("merges updates onto cached preferences and persists the result", async () => {
     const storage = createInMemoryKeyValueStorage();

packages/app/src/hooks/use-changes-preferences/storage.ts

@@ -10,6 +10,7 @@ const changesPreferencesSchema = z.object({
   viewMode: z.enum(["flat", "tree"]).optional(),
   wrapLines: z.boolean().optional(),
   hideWhitespace: z.boolean().optional(),
+  commitsCollapsed: z.boolean().optional(),
 });
 
 export interface ChangesPreferences {
@@ -17,6 +18,7 @@ export interface ChangesPreferences {
   viewMode: "flat" | "tree";
   wrapLines: boolean;
   hideWhitespace: boolean;
+  commitsCollapsed: boolean;
 }
 
 export const DEFAULT_CHANGES_PREFERENCES: ChangesPreferences = {
@@ -24,6 +26,7 @@ export const DEFAULT_CHANGES_PREFERENCES: ChangesPreferences = {
   viewMode: "flat",
   wrapLines: false,
   hideWhitespace: false,
+  commitsCollapsed: true,
 };
 
 export interface KeyValueStorage {