[tasks] fix task pagination race in project view

Author: dudina-ma

frontend/src/lib/pages/project-tasks.svelte

@@ -26,6 +26,7 @@
   let sort = $state("-created_at");
   let offset = $state(0);
   const limit = 50;
+  let requestVersion = 0;
 
   let filterStatuses = $state<string[]>([...ACTIVE_STATUSES]);
   let filterPriorities = $state<string[]>([]);
@@ -58,6 +59,7 @@
 
   function load() {
     if (!slug) return;
+    const version = ++requestVersion;
     loading = true;
     error = "";
 
@@ -69,15 +71,18 @@
 
     Promise.all([getProject(slug), listTasks(filters)])
       .then(([proj, res]) => {
+        if (version !== requestVersion) return;
         project = proj;
         tasks = res.items;
         total = res.total;
         touchProject({ id: proj.id, name: proj.name });
       })
       .catch((e) => {
+        if (version !== requestVersion) return;
         error = e.message || "Failed to load data";
       })
       .finally(() => {
+        if (version !== requestVersion) return;
         loading = false;
       });
   }
@@ -138,7 +143,6 @@
               disabled={offset === 0}
               onclick={() => {
                 offset = Math.max(0, offset - limit);
-                load();
               }}
             >
               Previous
@@ -154,7 +158,6 @@
               disabled={offset + limit >= total}
               onclick={() => {
                 offset = offset + limit;
-                load();
               }}
             >
               Next