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/git/query-keys.ts

@@ -13,6 +13,10 @@ interface CheckoutQueryScope {
 
 type CheckoutQueryKey = readonly unknown[];
 
+// A commit's file diff is immutable for a given sha+path, so every consumer
+// can share the same long-lived cache policy.
+export const COMMIT_FILE_DIFF_STALE_TIME = 5 * 60_000;
+
 export function checkoutStatusQueryKey(serverId: string, cwd: string) {
   return ["checkoutStatus", serverId, cwd] as const;
 }
@@ -31,6 +35,19 @@ export function checkoutPrStatusQueryKey(serverId: string, cwd: string) {
   return ["checkoutPrStatus", serverId, cwd] as const;
 }
 
+export function checkoutCommitsQueryKey(serverId: string, cwd: string) {
+  return ["checkoutCommits", serverId, cwd] as const;
+}
+
+export function checkoutCommitFileDiffQueryKey(
+  serverId: string,
+  cwd: string,
+  sha: string,
+  path: string,
+) {
+  return ["checkoutCommitFileDiff", serverId, cwd, sha, path] as const;
+}
+
 export async function invalidateCheckoutGitQueriesForClient(
   queryClient: QueryClient,
   identity: CheckoutQueryIdentity,