feat(ui): move game folder picker into settings

The design update moved game-folder configuration out of launcher chrome and
into Settings > Library. Follow that contract in the runtime UI without
changing the existing storage or Tauri directory commands.

The top bar now leaves its right edge for the kebab menu. Settings owns a new
Game folder row that shows a valid selected path with a neutral Change button,
or the red Not set state with a stronger Choose button when no accessible
directory is configured. Both the empty-library state and the Settings row
still use the existing native directory picker, so existing saved paths and
rescans keep their current behavior.

Keep useGameDirectory as the directory-state owner and expose the shared
hasGameDirectory boolean from that hook so the grid and Settings field agree on
what counts as configured.

Test Plan:
- git diff --cached --check
- just frontend-test
- just build

Refs: 62b409f4bfc4995c25461776107d28f52b24f30e

crates/lanspread-tauri-deno-ts/src/components/modals/SettingsDialog.tsx

@@ -14,6 +14,9 @@ import {
 
 interface Props {
     settings: UISettings;
+    gameDir: string;
+    hasGameDirectory: boolean;
+    onPickDirectory: () => void;
     onChange: <K extends keyof UISettings>(key: K, value: UISettings[K]) => void;
     onClose: () => void;
 }
@@ -56,7 +59,37 @@ const SettingsTextInput = ({ value, placeholder, maxLength, onChange }: TextInpu
     </div>
 );
 
-export const SettingsDialog = ({ settings, onChange, onClose }: Props) => (
+interface GameFolderFieldProps {
+    path: string;
+    isValid: boolean;
+    onPickDirectory: () => void;
+}
+
+const GameFolderField = ({ path, isValid, onPickDirectory }: GameFolderFieldProps) => (
+    <div className={`folder-field ${isValid ? 'is-set' : 'is-unset'}`}>
+        <Icon.folder className="folder-field-icon" aria-hidden="true" />
+        <div className="folder-field-path" title={isValid ? path : 'No folder selected'}>
+            {isValid ? <bdi>{path}</bdi> : <span className="folder-field-empty">Not set</span>}
+        </div>
+        <button
+            type="button"
+            className="folder-field-btn"
+            aria-label={isValid ? 'Change game folder' : 'Choose game folder'}
+            onClick={onPickDirectory}
+        >
+            {isValid ? 'Change…' : 'Choose…'}
+        </button>
+    </div>
+);
+
+export const SettingsDialog = ({
+    settings,
+    gameDir,
+    hasGameDirectory,
+    onPickDirectory,
+    onChange,
+    onClose,
+}: Props) => (
     <Modal onClose={onClose} className="settings-modal">
         <div className="settings-head">
             <h2>Settings</h2>
@@ -110,6 +143,13 @@ export const SettingsDialog = ({ settings, onChange, onClose }: Props) => (
 
             <section className="settings-section">
                 <div className="settings-section-title">Library</div>
+                <Row label="Game folder" hint="Parent directory where games are downloaded and installed">
+                    <GameFolderField
+                        path={gameDir}
+                        isValid={hasGameDirectory}
+                        onPickDirectory={onPickDirectory}
+                    />
+                </Row>
                 <Row label="Grid density" hint="How tightly cards are packed">
                     <SegmentedRadio
                         value={settings.density}

crates/lanspread-tauri-deno-ts/src/components/topbar/DirectoryButton.tsx

@@ -1,28 +0,0 @@
-import { Icon } from '../Icon';
-
-interface Props {
-    path: string | null;
-    exists: boolean;
-    onClick: () => void;
-}
-
-export const DirectoryButton = ({ path, exists, onClick }: Props) => {
-    const isSet = !!(path && path.trim());
-    const isValid = isSet && exists;
-    const label = isValid ? 'Game folder' : 'Set game folder';
-    const tooltip = isValid ? (path as string) : 'Please select a game folder';
-    const ariaLabel = isValid ? `Game folder: ${path}` : 'Set game folder';
-
-    return (
-        <button
-            type="button"
-            className={`dirbtn ${isValid ? 'dirbtn-set' : 'dirbtn-unset'}`}
-            title={tooltip}
-            aria-label={ariaLabel}
-            onClick={onClick}
-        >
-            <Icon.folder />
-            <span className="dirbtn-label">{label}</span>
-        </button>
-    );
-};

crates/lanspread-tauri-deno-ts/src/components/topbar/TopBar.tsx

@@ -2,7 +2,6 @@ import { Brand } from '../Brand';
 import { SegmentedFilters } from './SegmentedFilters';
 import { SearchField } from './SearchField';
 import { SortMenu } from './SortMenu';
-import { DirectoryButton } from './DirectoryButton';
 import { KebabMenu, KebabItem } from './KebabMenu';
 
 import { FilterCounts } from '../../lib/gameState';
@@ -17,9 +16,6 @@ interface Props {
     setQuery: (value: string) => void;
     sort: GameSort;
     setSort: (value: GameSort) => void;
-    gameDir: string;
-    gameDirExists: boolean;
-    onPickDirectory: () => void;
     kebabItems: ReadonlyArray<KebabItem>;
 }
 
@@ -32,9 +28,6 @@ export const TopBar = ({
     setQuery,
     sort,
     setSort,
-    gameDir,
-    gameDirExists,
-    onPickDirectory,
     kebabItems,
 }: Props) => (
     <header className="topbar">
@@ -52,7 +45,6 @@ export const TopBar = ({
                 <SortMenu value={sort} onChange={setSort} />
             </div>
             <div className="topbar-right-tail">
-                <DirectoryButton path={gameDir} exists={gameDirExists} onClick={onPickDirectory} />
                 <KebabMenu items={kebabItems} />
             </div>
         </div>

crates/lanspread-tauri-deno-ts/src/hooks/useGameDirectory.ts

@@ -64,6 +64,8 @@ export const useGameDirectory = () => {
         };
     }, [gameDir]);
 
+    const hasGameDirectory = gameDir.trim() !== '' && gameDirExists;
+
     const rescan = useCallback(() => {
         if (!gameDir.trim()) {
             setGameDirExists(false);
@@ -86,5 +88,5 @@ export const useGameDirectory = () => {
         void sync();
     }, [gameDir]);
 
-    return { gameDir, gameDirExists, setGameDir, rescan };
+    return { gameDir, gameDirExists, hasGameDirectory, setGameDir, rescan };
 };

crates/lanspread-tauri-deno-ts/src/styles/launcher.css

@@ -394,44 +394,6 @@
   color: var(--accent);
 }
 
-/* Game-folder button: icon + short label.
-   Full path lives in tooltip + aria-label, not on-screen. */
-.dirbtn {
-  position: relative;
-  display: inline-flex;
-  align-items: center;
-  gap: 8px;
-  height: 36px;
-  padding: 0 14px 0 12px;
-  background: var(--bg-2);
-  border: 1px solid var(--bd-1);
-  border-radius: 8px;
-  color: var(--t-1);
-  font: inherit;
-  font-size: 12.5px;
-  font-weight: 600;
-  cursor: pointer;
-  white-space: nowrap;
-  flex-shrink: 0;
-  transition:
-    border-color 0.15s,
-    color 0.15s,
-    background 0.15s;
-}
-.dirbtn:hover {
-  border-color: var(--bd-2);
-}
-.dirbtn-label {
-  line-height: 1;
-}
-.dirbtn-unset {
-  border-color: color-mix(in srgb, var(--danger) 35%, var(--bd-1));
-}
-.dirbtn-unset:hover {
-  border-color: color-mix(in srgb, var(--danger) 55%, var(--bd-2));
-  background: color-mix(in srgb, var(--danger) 8%, var(--bg-2));
-}
-
 /* Kebab menu */
 .kebab {
   position: relative;
@@ -1600,6 +1562,86 @@
   font-weight: 500;
 }
 
+/* Settings: game-folder field */
+.folder-field {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  width: 340px;
+  height: 36px;
+  padding: 0 4px 0 12px;
+  background: var(--bg-3);
+  border: 1px solid var(--bd-1);
+  border-radius: 8px;
+  transition:
+    border-color 0.15s,
+    background 0.15s;
+}
+.folder-field:hover {
+  border-color: var(--bd-2);
+}
+.folder-field.is-unset {
+  border-color: color-mix(in srgb, var(--danger) 35%, var(--bd-1));
+  background: color-mix(in srgb, var(--danger) 6%, var(--bg-3));
+}
+.folder-field.is-unset:hover {
+  border-color: color-mix(in srgb, var(--danger) 55%, var(--bd-2));
+}
+.folder-field-icon {
+  color: var(--t-3);
+  flex-shrink: 0;
+}
+.folder-field.is-unset .folder-field-icon {
+  color: #f87171;
+}
+.folder-field-path {
+  flex: 1;
+  min-width: 0;
+  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
+  font-size: 12px;
+  color: var(--t-1);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  direction: rtl;
+  text-align: left;
+  unicode-bidi: plaintext;
+}
+.folder-field-empty {
+  font-family: var(--font-ui);
+  font-size: 12.5px;
+  font-weight: 600;
+  color: #f87171;
+  letter-spacing: 0;
+}
+.folder-field-btn {
+  flex-shrink: 0;
+  height: 28px;
+  padding: 0 12px;
+  border: 0;
+  border-radius: 6px;
+  background: rgba(255, 255, 255, 0.06);
+  color: var(--t-1);
+  font: inherit;
+  font-size: 12.5px;
+  font-weight: 600;
+  letter-spacing: 0;
+  cursor: pointer;
+  transition:
+    background 0.15s,
+    color 0.15s;
+}
+.folder-field-btn:hover {
+  background: rgba(255, 255, 255, 0.12);
+}
+.folder-field.is-unset .folder-field-btn {
+  background: color-mix(in srgb, var(--accent) 85%, transparent);
+  color: #fff;
+}
+.folder-field.is-unset .folder-field-btn:hover {
+  background: var(--accent);
+}
+
 /* Settings: color swatches */
 .swatch-row {
   display: inline-flex;

crates/lanspread-tauri-deno-ts/src/windows/MainWindow.tsx

@@ -45,7 +45,7 @@ const openLogsWindow = async () => {
 
 export const MainWindow = () => {
     const { settings, set: setSetting } = useSettings();
-    const { gameDir, gameDirExists, setGameDir, rescan } = useGameDirectory();
+    const { gameDir, hasGameDirectory, setGameDir, rescan } = useGameDirectory();
     const games = useGames(rescan);
     const actions = useGameActions(games, settings);
     const thumbnails = useThumbnails();
@@ -53,8 +53,6 @@ export const MainWindow = () => {
     const [openGameId, setOpenGameId] = useState<string | null>(null);
     const [removeGameId, setRemoveGameId] = useState<string | null>(null);
     const [settingsOpen, setSettingsOpen] = useState(false);
-
-    const hasGameDirectory = !!gameDir.trim() && gameDirExists;
     const visibleGames = useMemo(
         () => hasGameDirectory ? games.games : [],
         [games.games, hasGameDirectory],
@@ -130,9 +128,6 @@ export const MainWindow = () => {
                 setQuery={setQuery}
                 sort={settings.sort}
                 setSort={(v) => setSetting('sort', v)}
-                gameDir={gameDir}
-                gameDirExists={gameDirExists}
-                onPickDirectory={() => void pickDirectory()}
                 kebabItems={kebabItems}
             />
             <main className="grid-wrap">
@@ -192,6 +187,9 @@ export const MainWindow = () => {
             {settingsOpen && (
                 <SettingsDialog
                     settings={settings}
+                    gameDir={gameDir}
+                    hasGameDirectory={hasGameDirectory}
+                    onPickDirectory={() => void pickDirectory()}
                     onChange={setSetting}
                     onClose={() => setSettingsOpen(false)}
                 />