fix: add window:allow-start-dragging permission for drag to work

getCurrentWindow().startDragging() silently fails without this
capability. Also switch drag handlers from onMouseDown to onPointerDown
with stopPropagation to prevent dnd-kit interference.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: umutsatir

src-tauri/capabilities/default.json

@@ -5,6 +5,7 @@
   "windows": ["main"],
   "permissions": [
     "core:default",
+    "core:window:allow-start-dragging",
     "opener:default",
     "sql:allow-execute",
     "sql:allow-load",

src/components/brain-dump/BrainDump.tsx

@@ -21,9 +21,10 @@ export function BrainDump() {
     >
       <div
         data-tauri-drag-region
-        onMouseDown={(e) => {
+        onPointerDown={(e) => {
           const target = e.target as HTMLElement;
           if (!target.closest('button, input, a, [role="button"]')) {
+            e.stopPropagation();
             getCurrentWindow().startDragging();
           }
         }}

src/components/timebox/Timebox.tsx

@@ -222,9 +222,10 @@ export function Timebox() {
       {/* Header */}
       <div
         data-tauri-drag-region
-        onMouseDown={(e) => {
+        onPointerDown={(e) => {
           const target = e.target as HTMLElement;
           if (!target.closest('button, input, a, [role="button"]')) {
+            e.stopPropagation();
             getCurrentWindow().startDragging();
           }
         }}

src/components/today/TodayTaskList.tsx

@@ -27,9 +27,10 @@ export function TodayTaskList() {
     >
       <div
         data-tauri-drag-region
-        onMouseDown={(e) => {
+        onPointerDown={(e) => {
           const target = e.target as HTMLElement;
           if (!target.closest('button, input, a, [role="button"]')) {
+            e.stopPropagation();
             getCurrentWindow().startDragging();
           }
         }}

src/components/weekly/WeekNav.tsx

@@ -5,9 +5,10 @@ import { useT } from '../../hooks/useT';
 import { useDateLocale } from '../../hooks/useDateLocale';
 import { SettingsButton } from '../layout/SettingsButton';
 
-function handleDragRegionMouseDown(e: React.MouseEvent) {
+function handleDragRegionPointerDown(e: React.PointerEvent) {
   const target = e.target as HTMLElement;
   if (!target.closest('button, input, a, [role="button"]')) {
+    e.stopPropagation(); // prevent dnd-kit from capturing this pointer event
     getCurrentWindow().startDragging();
   }
 }
@@ -46,7 +47,7 @@ export function WeekNav({ onTodayClick }: Props) {
   return (
     <div
       data-tauri-drag-region
-      onMouseDown={handleDragRegionMouseDown}
+      onPointerDown={handleDragRegionPointerDown}
       className="flex items-center gap-2 border-b flex-shrink-0"
       style={{
         height: 52,