fix(js): release parallel pending state

When data-slhx-policy=parallel runs overlapping requests against one target, release pending UI bookkeeping for each completed request instead of only the last pending handle.

req: convention/006

req: convention/007

req: convention/008

slhx-js/runtime/slhx.js

@@ -214,6 +214,8 @@
       if (pending.get(target)?.abort === abort) {
         pending.delete(target);
         showPending(target, false);
+      } else if (policy === "parallel") {
+        showPending(target, false);
       }
       finish();
     }

slhx-js/tests/runtime.rs

@@ -152,6 +152,17 @@ fn runtime_latest_request_policy_releases_superseded_pending_state() {
     assert!(source.contains("if (pending.get(target)?.abort === abort)"));
 }
 
+#[test]
+fn runtime_parallel_request_policy_releases_each_pending_state() {
+    // req: convention/006 req: convention/007 req: convention/008
+    let source = slhx_js::RUNTIME_JS;
+
+    assert!(source.contains("else if (policy === \"parallel\") {\n        showPending(target, false);\n      }"));
+    assert!(source.contains("const pendingClassStates = new WeakMap()"));
+    assert!(source.contains("const indicatorStates = new WeakMap()"));
+    assert!(source.contains("const disabledStates = new WeakMap()"));
+}
+
 #[test]
 fn runtime_exposes_page_swap_hooks() {
     let source = slhx_js::RUNTIME_JS;