migrate: move flock and hash utilities to shared package (#22640)

packages/opencode/src/global/index.ts

@@ -3,6 +3,7 @@ import { xdgData, xdgCache, xdgConfig, xdgState } from "xdg-basedir"
 import path from "path"
 import os from "os"
 import { Filesystem } from "../util/filesystem"
+import { Flock } from "@opencode-ai/shared/util/flock"
 
 const app = "opencode"
 
@@ -26,6 +27,9 @@ export namespace Global {
   }
 }
 
+// Initialize Flock with global state path
+Flock.setGlobal({ state })
+
 await Promise.all([
   fs.mkdir(Global.Path.data, { recursive: true }),
   fs.mkdir(Global.Path.config, { recursive: true }),