fix: rename ToManyArgs to TooManyArgs in CdCommandError (#281)

## Summary
- Fix typo in `CdCommandError::ToManyArgs` enum variant name →
`TooManyArgs`
- The `#[error]` message string was already correct ("Too many args"),
only the Rust identifier was wrong

## Test plan
- [x] `cargo test -p vite_task_plan` passes
- [x] Plan snapshot tests pass

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

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: branchseer <3612422+branchseer@users.noreply.github.com>

Author: 3 people

crates/vite_task_plan/src/error.rs

@@ -17,7 +17,7 @@ pub enum CdCommandError {
     NoHomeDirectory,
 
     #[error("Too many args for 'cd' command")]
-    ToManyArgs,
+    TooManyArgs,
 }
 
 #[derive(Debug, thiserror::Error)]

crates/vite_task_plan/src/plan.rs

@@ -157,7 +157,7 @@ async fn plan_task_as_execution_node(
                     }
                     [dir] => Path::new(dir.as_str()).into(),
                     _ => {
-                        return Err(Error::CdCommand(CdCommandError::ToManyArgs));
+                        return Err(Error::CdCommand(CdCommandError::TooManyArgs));
                     }
                 };
                 cwd = cwd.join(cd_target.as_ref()).into();