fix(cli): resolve compilation and formatting issues

- Make cmd mutable in execution.rs to allow spawning child process
- Move #[cfg(unix)] import to top of file for proper formatting

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Co-authored-by: Brooooooklyn <3468483+Brooooooklyn@users.noreply.github.com>

Author: Claude

crates/vite_command/src/lib.rs

@@ -1,3 +1,5 @@
+#[cfg(unix)]
+use std::os::fd::{BorrowedFd, RawFd};
 use std::{
     collections::HashMap,
     ffi::OsStr,
@@ -10,9 +12,6 @@ use tokio_util::sync::CancellationToken;
 use vite_error::Error;
 use vite_path::{AbsolutePath, AbsolutePathBuf, RelativePathBuf};
 
-#[cfg(unix)]
-use std::os::fd::{BorrowedFd, RawFd};
-
 /// Result of running a command with fspy tracking.
 #[derive(Debug)]
 pub struct FspyCommandResult {

packages/cli/binding/src/cli/execution.rs

@@ -62,7 +62,7 @@ pub(super) async fn resolve_and_execute(
         SynthesizableSubcommand::Dev { .. } | SynthesizableSubcommand::Preview { .. }
     );
 
-    let cmd =
+    let mut cmd =
         resolve_and_build_command(resolver, subcommand, resolved_vite_config, envs, cwd, cwd_arc)
             .await?;