refactor(ui): adopt useDismissable in ColorFilter and BulkActionBar

Replaces the hand-rolled outside-pointerdown listeners with the shared
hook. Both popovers now also close on Escape, and listeners only attach
while a panel is actually open.

src/components/BulkActionBar.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useRef, useState } from "react";
 import { useGalleryStore } from "../store";
 import { BulkTagPopover } from "./bulk/BulkTagPopover";
+import { useDismissable } from "./menu";
 import { Tooltip } from "./Tooltip"
 
 type Panel = "tag" | "rating" | "album" | "delete" | null;
@@ -28,15 +29,8 @@ export function BulkActionBar() {
   const [newAlbumName, setNewAlbumName] = useState("");
   const barRef = useRef<HTMLDivElement>(null);
 
-  // Close any open popover when clicking outside the bar.
-  useEffect(() => {
-    const onPointerDown = (event: PointerEvent) => {
-      if (barRef.current?.contains(event.target as Node)) return;
-      setPanel(null);
-    };
-    window.addEventListener("pointerdown", onPointerDown);
-    return () => window.removeEventListener("pointerdown", onPointerDown);
-  }, []);
+  // Close any open popover when clicking outside the bar or pressing Escape.
+  useDismissable(barRef, () => setPanel(null), panel !== null);
 
   // Reset transient UI whenever the selection empties.
   useEffect(() => {

src/components/ColorFilter.tsx

@@ -1,6 +1,7 @@
-import { useEffect, useRef, useState } from "react";
+import { useRef, useState } from "react";
 import { AnimatePresence, motion } from "framer-motion";
 import { useGalleryStore } from "../store";
+import { useDismissable } from "./menu";
 import { Tooltip } from "./Tooltip";
 
 type Rgb = [number, number, number];
@@ -45,15 +46,8 @@ export function ColorFilter() {
   const isActive = colorFilter !== null;
   const isCustom = isActive && !SWATCHES.some((swatch) => rgbEquals(colorFilter, swatch.rgb));
 
-  // Collapse the panel when clicking elsewhere.
-  useEffect(() => {
-    if (!open) return;
-    const onPointerDown = (event: PointerEvent) => {
-      if (ref.current && !ref.current.contains(event.target as Node)) setOpen(false);
-    };
-    window.addEventListener("pointerdown", onPointerDown);
-    return () => window.removeEventListener("pointerdown", onPointerDown);
-  }, [open]);
+  // Collapse the panel when clicking elsewhere or pressing Escape.
+  useDismissable(ref, () => setOpen(false), open);
 
   return (
     <div ref={ref} className="relative ml-1 flex shrink-0 items-center border-l border-white/6 pl-2">