feat(git): inline file diffs in commit history rows (#1291)

* chore: add .worktrees/ to gitignore for worktree workflow

* feat(git): add getCommitFileDiff service function

* docs(git): document getCommitFileDiff in module docs

* feat(git): add GET /api/git/commit-file-diff route

* feat(git): add CommitFileDiffResponse type and GitAPI method signature

* feat(git): add getCommitFileDiff HTTP client function

* feat(git): add getCommitFileDiff API facade

* feat(git): add getCommitFileDiff stub to VS Code bridge

* feat(git): add getCommitFileDiff to VS Code gitService and bridge handler

* feat(git): add inline file diff to history commit rows

* fix(git): consolidate CommitFileDiffResponse import to gitApi facade

* fix(git): pass directory through history, validate hash, propagate git errors

* fix(git): use exit code check for VS Code getCommitFileDiff error detection

* fix(git): VS Code rename detection, hash validation parity, retry on error

* fix(git): register scroll container as virtualizer root to fix empty space in history diffs

* fix(git): address greptile review — rename key extraction, directory guard, language detection, isBinary cleanup

* fix(git): harden history inline diffs

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/vscode/webview/api/git.ts

@@ -29,6 +29,7 @@ import type {
   GitLogResponse,
   GitLogOptions,
   GitCommitFilesResponse,
+  CommitFileDiffResponse,
   GitIdentitySummary,
   GitIdentityProfile,
   GitRemote,
@@ -259,6 +260,15 @@ export const createVSCodeGitAPI = (): GitAPI => ({
     });
   },
 
+  getCommitFileDiff: async (directory: string, hash: string, filePath: string, isBinary: boolean): Promise<CommitFileDiffResponse> => {
+    return sendBridgeMessage<CommitFileDiffResponse>('api:git/commit-file-diff', {
+      directory,
+      hash,
+      path: filePath,
+      binary: isBinary,
+    });
+  },
+
   getCurrentGitIdentity: async (directory: string): Promise<GitIdentitySummary | null> => {
     return sendBridgeMessage<GitIdentitySummary | null>('api:git/identity', {
       directory,