fix(keymap): match remaining letter shortcuts by typed character (#292)

#291 named letter keys by the typed character (e.key) when Alt is not held, so AZERTY Ctrl+Z is no longer Ctrl+W. Hard-coded handlers still compared the physical KeyboardEvent.code. A shared letterOf(e) in platform/keymap.ts now backs strokeOf and those handlers:

- terminal Ctrl+Shift+C / V / T (copy, paste, new tab) and Ctrl+letter control codes
- Run/Debug Configurations Ctrl/Cmd+N
- browser shortcut guards (blocked reload/print etc.)

Alt combos keep the physical key (Option / AltGr type symbols).

src/features/run/EditConfigsDialog.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useRef, useState, type DragEvent, type KeyboardEven
 import clsx from "clsx";
 import { executeAction } from "@/platform/actions";
 import { call, commands, isTauri, type RunConfig } from "@/platform/ipc";
+import { letterOf } from "@/platform/keymap";
 import { useWorkflowSettings } from "@/platform/workflowSettings";
 import { Button, Dialog, Icon, IconButton, Input, T } from "@/ui";
 import {
@@ -312,7 +313,8 @@ function EditConfigsDialog() {
   // IDEA: ⌘N / Alt+Insert adds a configuration, ⌥M opens "Modify options".
   const onKeyDown = (e: KeyboardEvent) => {
     const add =
-      (e.code === "KeyN" && (isMac() ? e.metaKey || e.ctrlKey : e.ctrlKey)) || (e.altKey && e.key === "Insert");
+      (letterOf(e) === "N" && !e.altKey && (isMac() ? e.metaKey || e.ctrlKey : e.ctrlKey)) ||
+      (e.altKey && e.key === "Insert");
     if (add && mode === "configs") {
       e.preventDefault();
       openAdd();

src/features/run/runConfigTypes.test.tsx

@@ -318,6 +318,17 @@ describe("Run/Debug Configurations tree", () => {
     fireEvent.click(await screen.findByText("Redirect input"));
     expect(screen.getByLabelText("Redirect input from")).toBeTruthy();
   });
+
+  it("opens Add New Configuration on Ctrl+N by typed letter", () => {
+    useRun.setState({ configs: [], loaded: true, editorOpen: true });
+    render(<EditConfigsOverlay />);
+    const tree = screen.getByRole("tree", { name: "Run configurations" });
+    // Dvorak: physical KeyN types "b", physical KeyL types "n".
+    fireEvent.keyDown(tree, { key: "b", code: "KeyN", ctrlKey: true });
+    expect(screen.queryByLabelText("Search configuration types")).toBeNull();
+    fireEvent.keyDown(tree, { key: "n", code: "KeyL", ctrlKey: true });
+    expect(screen.getByLabelText("Search configuration types")).toBeTruthy();
+  });
 });
 
 describe("debug-only types (Remote JVM Debug)", () => {