feat(vscode): Implement Git Backend via VS Code Git extension (#92)

packages/vscode/webview/api/index.ts

@@ -1,9 +1,10 @@
-import type { RuntimeAPIs, TerminalAPI, GitAPI, NotificationsAPI, GitIdentityProfile } from '../../../ui/src/lib/api/types';
+import type { RuntimeAPIs, TerminalAPI, NotificationsAPI } from '@openchamber/ui/lib/api/types';
 import { createVSCodeFilesAPI } from './files';
 import { createVSCodeSettingsAPI } from './settings';
 import { createVSCodePermissionsAPI } from './permissions';
 import { createVSCodeToolsAPI } from './tools';
 import { createVSCodeEditorAPI } from './editor';
+import { createVSCodeGitAPI } from './git';
 
 // Stub APIs return sensible defaults instead of throwing
 const createStubTerminalAPI = (): TerminalAPI => ({
@@ -14,37 +15,6 @@ const createStubTerminalAPI = (): TerminalAPI => ({
   close: async () => {},
 });
 
-const createStubGitAPI = (): GitAPI => ({
-  checkIsGitRepository: async () => false,
-  getGitStatus: async () => ({ current: '', tracking: null, ahead: 0, behind: 0, files: [], isClean: true }),
-  getGitDiff: async () => ({ diff: '' }),
-  getGitFileDiff: async () => ({ original: '', modified: '', path: '' }),
-  revertGitFile: async () => {},
-  isLinkedWorktree: async () => false,
-  getGitBranches: async () => ({ all: [], current: '', branches: {} }),
-  deleteGitBranch: async () => ({ success: false }),
-  deleteRemoteBranch: async () => ({ success: false }),
-  generateCommitMessage: async () => ({ message: { subject: '', highlights: [] } }),
-  listGitWorktrees: async () => [],
-  addGitWorktree: async () => ({ success: false, path: '', branch: '' }),
-  removeGitWorktree: async () => ({ success: false }),
-  ensureOpenChamberIgnored: async () => {},
-  createGitCommit: async () => ({ success: false, commit: '', branch: '', summary: { changes: 0, insertions: 0, deletions: 0 } }),
-  gitPush: async () => ({ success: false, pushed: [], repo: '', ref: null }),
-  gitPull: async () => ({ success: false, summary: { changes: 0, insertions: 0, deletions: 0 }, files: [], insertions: 0, deletions: 0 }),
-  gitFetch: async () => ({ success: false }),
-  checkoutBranch: async () => ({ success: false, branch: '' }),
-  createBranch: async () => ({ success: false, branch: '' }),
-  getGitLog: async () => ({ all: [], latest: null, total: 0 }),
-  getCommitFiles: async () => ({ files: [] }),
-  getCurrentGitIdentity: async () => null,
-  setGitIdentity: async () => ({ success: false, profile: { id: '', name: '', userName: '', userEmail: '' } }),
-  getGitIdentities: async () => [],
-  createGitIdentity: async (profile: GitIdentityProfile) => profile,
-  updateGitIdentity: async (_id: string, profile: GitIdentityProfile) => profile,
-  deleteGitIdentity: async () => {},
-});
-
 const createStubNotificationsAPI = (): NotificationsAPI => ({
   notifyAgentCompletion: async () => true,
   canNotify: () => true,
@@ -53,7 +23,7 @@ const createStubNotificationsAPI = (): NotificationsAPI => ({
 export const createVSCodeAPIs = (): RuntimeAPIs => ({
   runtime: { platform: 'vscode', isDesktop: false, isVSCode: true, label: 'VS Code Extension' },
   terminal: createStubTerminalAPI(),
-  git: createStubGitAPI(),
+  git: createVSCodeGitAPI(),
   files: createVSCodeFilesAPI(),
   settings: createVSCodeSettingsAPI(),
   permissions: createVSCodePermissionsAPI(),