Fix task poller callback staleness and normalize filings query

hooks/use-task-poller.ts

@@ -1,6 +1,6 @@
 'use client';
 
-import { useEffect, useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { getTask } from '@/lib/api';
 import type { Task } from '@/lib/types';
 
@@ -12,6 +12,11 @@ type UseTaskPollerInput = {
 
 export function useTaskPoller({ taskId, intervalMs = 2200, onTerminalState }: UseTaskPollerInput) {
   const [task, setTask] = useState<Task | null>(null);
+  const onTerminalStateRef = useRef(onTerminalState);
+
+  useEffect(() => {
+    onTerminalStateRef.current = onTerminalState;
+  }, [onTerminalState]);
 
   useEffect(() => {
     if (!taskId) {
@@ -33,7 +38,7 @@ export function useTaskPoller({ taskId, intervalMs = 2200, onTerminalState }: Us
         setTask(latest);
 
         if (latest.status === 'completed' || latest.status === 'failed') {
-          onTerminalState?.(latest);
+          onTerminalStateRef.current?.(latest);
           return;
         }
       } catch {
@@ -53,7 +58,7 @@ export function useTaskPoller({ taskId, intervalMs = 2200, onTerminalState }: Us
         clearTimeout(timer);
       }
     };
-  }, [taskId, intervalMs, onTerminalState]);
+  }, [taskId, intervalMs]);
 
   return task;
 }