fix: resolve TypeScript error for drawer CSS selector in global.styles

Use Record<string, React.CSSProperties> with spread to satisfy
createStyles' return type for the `.ant-drawer.ant-drawer-inline`
selector. Direct dot-separated class selectors cause TS2345 because
they're not valid CSS property keys in the StyleOrGetStyleFn type.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/global.style.ts

@@ -1,6 +1,17 @@
 import { createStyles } from 'antd-style';
 
 const useStyles = createStyles(() => {
+  // Override ProLayout mobile drawer position to ensure it appears above the mask overlay.
+  // `position: fixed` is needed because ProLayout uses `ant-drawer-inline` which sets
+  // `position: absolute`, causing the drawer to render below the mask on mobile.
+  // Cast via Record to satisfy createStyles' return type for dot-separated selectors.
+  const drawerFix: Record<string, React.CSSProperties> = {
+    '.ant-drawer.ant-drawer-inline.ant-pro-drawer-sider': {
+      position:
+        'fixed !important' as unknown as React.CSSProperties['position'],
+    },
+  };
+
   return {
     colorWeak: {
       filter: 'invert(80%)',
@@ -11,9 +22,7 @@ const useStyles = createStyles(() => {
     'ant-pro-sider.ant-layout-sider.ant-pro-sider-fixed': {
       left: 'unset',
     },
-    '.ant-drawer.ant-drawer-inline.ant-pro-drawer-sider': {
-      position: 'fixed !important',
-    },
+    ...drawerFix,
     canvas: {
       display: 'block',
     },