redo reverts code (when possible) (#75)

src/ipc/handlers/app_handlers.ts

@@ -494,6 +494,7 @@ export function registerAppHandlers() {
       _,
       { appId, previousVersionId }: { appId: number; previousVersionId: string }
     ) => {
+      logger.log(`Reverting to version ${previousVersionId} for app ${appId}`);
       return withLock(appId, async () => {
         const app = await db.query.apps.findFirst({
           where: eq(apps.id, appId),

src/ipc/ipc_types.ts

@@ -41,6 +41,7 @@ export interface Message {
   role: "user" | "assistant";
   content: string;
   approvalState?: "approved" | "rejected" | null;
+  commitHash?: string | null;
 }
 
 export interface Chat {