fix(validating-array-loader): un-ignore test_fund_command by fixing empty check

validate_array judged emptiness via as_array(), which only matches
PhpMixed::Array, so a non-empty PhpMixed::List (e.g. a funding array) was
misjudged as empty and dropped, diverging from PHP's !count() check.
Match both Array and List.

The stale ignore reason on test_fund_command no longer applies:
init_temp_composer injects packagist:false so no network is reached, and
the downloader stack is reqwest-based (no curl shim todo!()).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/crates/shirabe/src/package/loader/validating_array_loader.rs b/crates/shirabe/src/package/loader/validating_array_loader.rs
index 28ae7d9b..da022b1b 100644
--- a/crates/shirabe/src/package/loader/validating_array_loader.rs
+++ b/crates/shirabe/src/package/loader/validating_array_loader.rs
@@ -1468,10 +1468,12 @@ impl ValidatingArrayLoader {
         }
 
         let is_empty = !self.config.borrow().contains_key(property)
-            || self.config.borrow()[property]
-                .as_array()
-                .map(|m| m.is_empty())
-                .unwrap_or(true);
+            || match &self.config.borrow()[property] {
+                PhpMixed::Array(m) => m.is_empty(),
+                PhpMixed::List(l) => l.is_empty(),
+                // is_array() above guarantees the value is Array or List here.
+                _ => unreachable!("validate_array: non-array value survived the is_array check"),
+            };
         if is_empty {
             if mandatory {
                 self.errors.borrow_mut().push(format!(