fix: pass sandbox docker env into containers (#15138) (thanks @stevebot-alive)

src/agents/sandbox-create-args.test.ts

@@ -78,6 +78,7 @@ describe("buildSandboxCreateArgs", () => {
         "1.5",
       ]),
     );
+    expect(args).toEqual(expect.arrayContaining(["--env", "LANG=C.UTF-8"]));
 
     const ulimitValues: string[] = [];
     for (let i = 0; i < args.length; i += 1) {

src/agents/sandbox/docker.ts

@@ -156,7 +156,9 @@ export function buildSandboxCreateArgs(params: {
     args.push("--user", params.cfg.user);
   }
   for (const [key, value] of Object.entries(params.cfg.env ?? {})) {
-    if (!key.trim()) continue;
+    if (!key.trim()) {
+      continue;
+    }
     args.push("--env", key + "=" + value);
   }
   for (const cap of params.cfg.capDrop) {