Add a Git section to the context mentions

webview-ui/src/services/GitService.ts

@@ -0,0 +1,46 @@
+import { vscode } from "../utils/vscode"
+
+export interface GitCommit {
+	hash: string
+	shortHash: string
+	subject: string
+	author: string
+	date: string
+}
+
+class GitService {
+	private commits: GitCommit[] | null = null
+	private lastQuery: string = ''
+
+	async searchCommits(query: string = ''): Promise<GitCommit[]> {
+		if (query === this.lastQuery && this.commits) {
+			return this.commits
+		}
+
+		// Request search from extension
+		vscode.postMessage({ type: 'searchCommits', query })
+		
+		// Wait for response
+		const response = await new Promise<GitCommit[]>((resolve) => {
+			const handler = (event: MessageEvent) => {
+				const message = event.data
+				if (message.type === 'commitSearchResults') {
+					window.removeEventListener('message', handler)
+					resolve(message.commits)
+				}
+			}
+			window.addEventListener('message', handler)
+		})
+
+		this.commits = response
+		this.lastQuery = query
+		return response
+	}
+
+	clearCache() {
+		this.commits = null
+		this.lastQuery = ''
+	}
+}
+
+export const gitService = new GitService()