fix: chown the whole coyote cache dir not just the oauth dir in the sandbox

src/sandbox/mod.rs

@@ -390,6 +390,7 @@ fn copy_host_files(name: &str) -> Result<()> {
 
     let oauth_tokens_dir = paths::oauth_tokens_dir();
     if oauth_tokens_dir.exists() {
+        let sandbox_cache_dir = "/home/agent/.cache/coyote";
         let sandbox_oauth_dir = "/home/agent/.cache/coyote/oauth";
         ensure_sandbox_dir(name, sandbox_oauth_dir)?;
         let dest = format!("{name}:{sandbox_oauth_dir}/");
@@ -400,7 +401,7 @@ fn copy_host_files(name: &str) -> Result<()> {
             let path = entry.path();
             sbx_cp(&path.display().to_string(), &dest)?;
         }
-        chown_agent_recursive(name, sandbox_oauth_dir)?;
+        chown_agent_recursive(name, sandbox_cache_dir)?;
     } else {
         debug!(
             "Skipping OAuth token copy: {} does not exist",