v1.8.92: fix Ctrl+S/Q and all Ctrl+key combos with non-Latin keyboard layouts

Ctrl+key shortcuts now use physical keycodes as fallback, so Ctrl+S (save
in nano), Ctrl+Q (XON), Ctrl+A/E/R/W/T etc. work regardless of whether
the keyboard layout is English, Russian, or any other.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gui/widgets/terminal_widget.py

@@ -712,6 +712,7 @@ class TerminalWidget(tk.Frame):
         return "break"
 
     # ── Ctrl+Key by keycode — works with any keyboard layout ──
+    # Physical keycodes for Ctrl+key (layout-independent, works with Russian etc.)
     _CTRL_KEYCODE_MAP = {
         67: '_on_ctrl_c',   # C
         86: '_on_ctrl_v',   # V
@@ -720,6 +721,32 @@ class TerminalWidget(tk.Frame):
         90: '_on_ctrl_z',   # Z
     }
 
+    # Physical keycodes → Ctrl byte: handles keys NOT in _CTRL_KEYCODE_MAP
+    # so that Ctrl+S, Ctrl+Q, Ctrl+A etc. work with any keyboard layout
+    _CTRL_KEYCODE_BYTE = {
+        65: b"\x01",  # A
+        66: b"\x02",  # B
+        69: b"\x05",  # E
+        70: b"\x06",  # F
+        71: b"\x07",  # G
+        72: b"\x08",  # H
+        73: b"\x09",  # I
+        74: b"\x0a",  # J
+        75: b"\x0b",  # K
+        77: b"\x0d",  # M
+        78: b"\x0e",  # N
+        79: b"\x0f",  # O
+        80: b"\x10",  # P
+        81: b"\x11",  # Q (XON)
+        82: b"\x12",  # R
+        83: b"\x13",  # S (XOFF / save in nano)
+        84: b"\x14",  # T
+        85: b"\x15",  # U
+        87: b"\x17",  # W
+        88: b"\x18",  # X
+        89: b"\x19",  # Y
+    }
+
     def _on_ctrl_key(self, event):
         """Route Ctrl+key by physical keycode (layout-independent)."""
         if not self._keyboard_enabled:
@@ -732,6 +759,12 @@ class TerminalWidget(tk.Frame):
             if event.state & 0x1 and event.keycode == 86:
                 return self._on_ctrl_v(event)
             return getattr(self, handler_name)(event)
+        # Fallback: send Ctrl+byte for keys not handled above (e.g. Ctrl+S, Ctrl+Q)
+        # This ensures shortcuts work with any keyboard layout (Russian, etc.)
+        ctrl_byte = self._CTRL_KEYCODE_BYTE.get(event.keycode)
+        if ctrl_byte:
+            self._send(ctrl_byte)
+            return "break"
         return None  # let other bindings handle it
 
     # ── Ctrl+C: copy or SIGINT (double-press within 1.5s) ──

version.py

@@ -1,6 +1,6 @@
 """Version info for ServerManager."""
 
-__version__ = "1.8.91"
+__version__ = "1.8.92"
 __app_name__ = "ServerManager"
 __author__ = "aibot777"
 __description__ = "Desktop GUI for managing remote servers"