fix(web): ensure web deps installed before vite build in runtime (#768)

Co-authored-by: Codex <codex@local>

web/hwlab-cloud-web/scripts/dist-contract.ts

@@ -186,6 +186,7 @@ function listFiles(dir) {
 }
 
 async function runViteBuild(rootDir, outDir) {
+  await ensureWebDeps(rootDir);
   const localVite = path.join(rootDir, "node_modules", ".bin", "vite");
   const command = fs.existsSync(localVite) ? localVite : "npx";
   const args = fs.existsSync(localVite)
@@ -201,6 +202,21 @@ async function runViteBuild(rootDir, outDir) {
   });
 }
 
+async function ensureWebDeps(rootDir) {
+  const lockPath = path.join(rootDir, "bun.lock");
+  const nodeModulesPath = path.join(rootDir, "node_modules");
+  if (!fs.existsSync(lockPath)) return;
+  if (fs.existsSync(path.join(nodeModulesPath, "vite")) && fs.existsSync(path.join(nodeModulesPath, "react"))) return;
+  await new Promise((resolve, reject) => {
+    const child = spawn("bun", ["install", "--frozen-lockfile"], { cwd: rootDir, stdio: ["ignore", "inherit", "inherit"] });
+    child.on("error", reject);
+    child.on("exit", (code) => {
+      if (code === 0) resolve();
+      else reject(new Error(`bun install exited with code ${code}`));
+    });
+  });
+}
+
 if (process.argv[1] && path.resolve(process.argv[1]) === fileURLToPath(import.meta.url)) {
   const args = process.argv.slice(2);
   const rootIndex = args.indexOf("--root");