Remap any shortcut in Settings → Keyboard; the macOS menu bar follows

A Keyboard section in the Settings window edits the shared keymap: rows
by group with a search field, a chip per key (x removes), + to record,
reset per row and Reset all. Recording takes the keydown before every
other key in the window (Cmd+W records instead of closing), refuses
reserved combos without preventDefault (Cmd+Q still quits), requires a
chord or F-key for editor commands, and offers Replace when another
command in an overlapping scope owns the key. Rows flag conflicts and
plain character keys that would stop starting a type-to-filter query.
Fixed keys are listed read-only, in the platform's spelling.

Remaps are ordinary settings (only rows that differ from the defaults),
so every window, the menu hints and the tooltips follow live — and the
macOS menu bar: its accelerators are built from the keymap (only the
combos Electrobun's parser expresses faithfully) and rebuilt on a remap.
A main-window menu action fired from the editor or Settings window
brings the main window forward first.

Also: the "Enter / double-click on a file" setting under File list (do
nothing / open local files in their default app), arrow keys in the
Settings sidebar with focus on open and a hand-walked Tab, translations
for all seven languages (the spec now checks every language labels every
command), and a README shortcut table generated from the keymap.

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

docs/architecture.md

@@ -131,10 +131,27 @@ main) and, on macOS, the app menu's "Settings…". Its RPC serves only
 `getSettings`/`saveSettings`/`pickEditorApp`/`showAbout`/`settingsClose`. Its
 page claims its own close-window key (`settingsClose`); a ⌘W it doesn't claim
 falls through to the app menu's Close Tab, and bun checks the Settings
-window's focus FIRST and closes it (see gotchas). Sidebar sections: Appearance,
-Transfers, Editor, File list (visible columns — the column-header right-click
-menu toggles the same setting), About (opens the native About box). The
-native title is `options.title`, retitled on a locale switch.
+window's focus FIRST and closes it (see gotchas). Sidebar sections (↑ / ↓ move
+between them, focus starts on the current one, Tab is walked by `cycleFocus`):
+Appearance, Transfers, Editor, File list (visible columns — the column-header
+right-click menu toggles the same setting — and "Enter / double-click on a
+file": nothing | open local files in their default app), Keyboard, About
+(opens the native About box). The native title is `options.title`, retitled on
+a locale switch.
+
+**Keyboard** is the remap editor over the shared keymap: rows by group with a
+search field (label or key text), a chip per combo (× removes), **+** records
+(the next non-modifier keydown, taken before every other key in the window so
+⌘W records instead of closing; Esc cancels; a click elsewhere or a blur ends
+it), ↺ resets a row, Reset all (inline confirm). Reserved combos are refused
+without `preventDefault` (⌘Q still quits); editor-scope combos must be chords
+or F-keys (the editor's text area always has focus); a combo owned by an
+overlapping-scope command offers **Replace** (moves it). Rows flag conflicts
+and plain character keys on file-list rows (they no longer start a filter).
+Fixed keys are listed read-only below. Every edit is `ShortcutsService.rebind`
+→ `settings.keybindings` (only rows that differ from the defaults) → the
+ordinary save + broadcast, so menus, tooltips and the macOS menu bar follow
+live.
 
 ## Bun modules
 
@@ -185,9 +202,16 @@ native title is `options.title`, retitled on a locale switch.
   atomic tmp+rename, 0600 + win32 `icacls` ACL. `store/settings.ts` — defaults
   spread-merge on load, so NEW SETTINGS KEYS need no backend change.
 - `menu.ts` — macOS-only app menu, rebuilt on every connections change (the
-  Connect submenu mirrors the store; "Settings…" carries ⌘,). ⌘W is intercepted
-  by the menu, so bun routes `close-tab` to a focused Settings or editor window
-  first. Labels go through
+  Connect submenu mirrors the store), language switch and keyboard remap.
+  **Accelerators come from the shared keymap** (`effectiveKeymap` +
+  `toAccelerator`, the first combo the native parser can express faithfully:
+  ⌘/⌃ chords only — a bare key means ⌘+key to it — no ⌫ / ⌦ / Shift+punctuation);
+  ⌘Q stays fixed. The keybindings are read through a getter AFTER the
+  connections load, so a remap saved meanwhile isn't lost. The page claims the
+  keys it handles first, so the menu only runs what falls through; a
+  `close-tab` that still arrives while a Settings or editor window is focused
+  closes THAT window, and other main-targeted actions bring the main window
+  forward first. Labels go through
   backend `i18n.t` and the menu is rebuilt on a locale change too.
 - `i18n.ts` — backend translator (native menus + thrown error messages, which
   no Angular service can reach). `setLocale(setting)` caches the resolved
@@ -402,6 +426,10 @@ ends with `blockReloadKeys`. Keys that land on `<body>` (a click dropped focus)
 are forwarded to the active list (`PanelsService.forwardListKey`), and `App`'s
 `(mousedown)` keeps focus on the list after chrome-button clicks.
 
+**Remaps** live in `AppSettings.keybindings` (sanitized on load), edited in
+Settings → Keyboard (see the Settings window). `ShortcutsService.rebind`
+stores only rows that differ from their defaults.
+
 **macOS key equivalents are page-first.** WKWebView hands ⌘-keys to the page
 before the app menu (WebKit `WebViewImpl::performKeyEquivalent`); only keys the
 page doesn't `preventDefault` reach the menu bar. So the page owns every app