fix: a first visit opens the ribbon, not the floating island

The tabbed chrome is the layout users know; the stored choice still wins.

docs/architecture/ribbon.md

@@ -7,7 +7,7 @@ compared. Everything the ribbon drives is the same editor, through the same comm
 ## The mode switch
 
 `chromeMode: 'classic' | 'ribbon'` lives in `storage/theme.ts` beside the other UI-chrome prefs
-(`edentext-chrome`, default `'classic'`). `App.svelte` forks on it: the ribbon docks as a plain
+(`edentext-chrome`, default `'ribbon'`). `App.svelte` forks on it: the ribbon docks as a plain
 flex child, the island keeps its absolute overlay. Reachable from both sides — the theme dropdown
 in classic, the strip's appearance menu in the ribbon.
 

src/lib/storage/CLAUDE.md

@@ -31,7 +31,7 @@ All keys share the `edentext-` prefix — a namespace, not a description: on Git
 - **Recent files:** `edentext-recent-files` — `{id, name, at}` per entry, newest first, eight kept (`recentFiles.ts`). Only the label lives here: the `FileSystemFileHandle` that reopens one is structured-cloneable but not JSON, so it sits in the `edentext-recent` IndexedDB store under the same id, and each write sweeps the handles no entry names. Two handles compare only through `isSameEntry`, which is async — hence the walk when recording a file already in the list. Reopening re-asks for permission (the API drops it on reload); a refusal, a moved file or a browser with no picker leaves the entry unopenable, and it is dropped with a message instead of failing again.
 - **Theme:** `edentext-theme` — `'light' | 'dark' | 'allBlack' | 'auto'`.
 - **Toolbar expanded:** `edentext-toolbar-expanded` — boolean string.
-- **Chrome:** `edentext-chrome` — `'classic' | 'ribbon'`; absent = classic.
+- **Chrome:** `edentext-chrome` — `'classic' | 'ribbon'`; absent = ribbon.
 - **Ribbon collapsed:** `edentext-ribbon-collapsed` — boolean string; absent = expanded.
 - **Formatting marks:** `edentext-formatting-marks` — boolean string.
 - **Ruler:** `edentext-ruler` — boolean string; absent = on.

src/lib/storage/theme.ts

@@ -36,7 +36,7 @@ export function saveToolbarExpanded(expanded: boolean): void {
 }
 
 export function loadChromeMode(): ChromeMode {
-    return localStorage.getItem(CHROME_KEY) === 'ribbon' ? 'ribbon' : 'classic';
+    return localStorage.getItem(CHROME_KEY) === 'classic' ? 'classic' : 'ribbon';
 }
 
 export function saveChromeMode(mode: ChromeMode): void {