Improve socket handling for -x spawned fenrir instances.

docs/development.txt

@@ -22,7 +22,7 @@ src/fenrirscreenreader/
 │   ├── onKeyInput/       # Key input hooks
 │   └── help/             # Tutorial system
 ├── drivers/              # Driver implementations
-│   ├── inputDriver/     # Input drivers (evdev, pty, atspi)
+│   ├── inputDriver/     # Input drivers (evdev, x11)
 │   ├── screenDriver/    # Screen drivers (vcsa, pty)
 │   ├── speechDriver/    # Speech drivers (speechd, generic)
 │   └── soundDriver/     # Sound drivers (generic, gstreamer)
@@ -36,8 +36,7 @@ Fenrir uses a pluggable driver architecture:
 
 1. **Input Drivers**: Capture keyboard input
    - evdevDriver: Linux evdev (recommended)
-   - ptyDriver: Terminal emulation
-   - atspiDriver: AT-SPI for desktop
+   - x11Driver: X11 terminal-scoped input
 
 2. **Screen Drivers**: Read screen content
    - vcsaDriver: Linux VCSA devices
@@ -83,7 +82,6 @@ Fenrir supports various event hooks:
 - **onCursorChange**: Triggered when cursor moves
 - **onScreenUpdate**: Triggered on screen content changes
 - **onKeyInput**: Triggered on key presses
-- **onByteInput**: Triggered on byte-level input
 - **onScreenChanged**: Triggered when switching screens
 
 ## Development Setup
@@ -386,4 +384,4 @@ current_line = lines[self.env['screen']['newCursor']['y']]
 - **Wiki**: https://git.stormux.org/storm/fenrir/wiki
 - **Issues**: Use repository issue tracker
 - **Community**: IRC irc.stormux.org #stormux
-- **Email**: stormux+subscribe@groups.io
+- **Email**: stormux+subscribe@groups.io