fix(app): make sidebar reordering respond immediately

Mouse input inherited the touch hold delay. Split activation by input so mouse dragging begins after deliberate movement while touch retains long-press arbitration.

packages/app/src/components/drag-reorder/index.ts

@@ -1,8 +1,9 @@
 export { reorderItemsOnDragEnd } from "./reorder-items";
 export type { DragEndInput } from "./reorder-items";
 export {
-  getPointerActivationConstraint,
-  type PointerActivationConfig,
+  getDragActivationConstraints,
+  type DragActivationConfig,
+  type DragActivationConstraints,
   type PointerActivationConstraint,
 } from "./pointer-activation";
 export {

packages/app/src/components/drag-reorder/pointer-activation.test.ts

@@ -1,14 +1,21 @@
 import { describe, expect, it } from "vitest";
-import { getPointerActivationConstraint } from "./pointer-activation";
+import { getDragActivationConstraints } from "./pointer-activation";
 
-const config = { defaultDistance: 6, holdDelayMs: 250, holdTolerance: 8 };
+const config = { movementDistance: 6, touchHoldDelayMs: 180, touchHoldTolerance: 8 };
 
-describe("getPointerActivationConstraint", () => {
-  it("uses distance activation for default draggable rows", () => {
-    expect(getPointerActivationConstraint(false, config)).toEqual({ distance: 6 });
+describe("getDragActivationConstraints", () => {
+  it("starts mouse drags after deliberate pointer movement", () => {
+    expect(getDragActivationConstraints(true, config).mouse).toEqual({ distance: 6 });
   });
 
-  it("requires a held pointer before activating handle-based drags", () => {
-    expect(getPointerActivationConstraint(true, config)).toEqual({ delay: 250, tolerance: 8 });
+  it("requires a short hold before starting touch drags", () => {
+    expect(getDragActivationConstraints(true, config).touch).toEqual({
+      delay: 180,
+      tolerance: 8,
+    });
+  });
+
+  it("starts ordinary touch rows after deliberate movement", () => {
+    expect(getDragActivationConstraints(false, config).touch).toEqual({ distance: 6 });
   });
 });

packages/app/src/components/drag-reorder/pointer-activation.ts

@@ -2,18 +2,25 @@ export type PointerActivationConstraint =
   | { distance: number }
   | { delay: number; tolerance: number };
 
-export interface PointerActivationConfig {
-  defaultDistance: number;
-  holdDelayMs: number;
-  holdTolerance: number;
+export interface DragActivationConfig {
+  movementDistance: number;
+  touchHoldDelayMs: number;
+  touchHoldTolerance: number;
 }
 
-export function getPointerActivationConstraint(
+export interface DragActivationConstraints {
+  mouse: PointerActivationConstraint;
+  touch: PointerActivationConstraint;
+}
+
+export function getDragActivationConstraints(
   useDragHandle: boolean,
-  config: PointerActivationConfig,
-): PointerActivationConstraint {
-  if (useDragHandle) {
-    return { delay: config.holdDelayMs, tolerance: config.holdTolerance };
-  }
-  return { distance: config.defaultDistance };
+  config: DragActivationConfig,
+): DragActivationConstraints {
+  const movement = { distance: config.movementDistance };
+  const touch = useDragHandle
+    ? { delay: config.touchHoldDelayMs, tolerance: config.touchHoldTolerance }
+    : movement;
+
+  return { mouse: movement, touch };
 }