Implement keyboard input actions (text input, IME control)

[devload]

Description

Add comprehensive keyboard input support for text entry and IME (Input Method Editor) control.

Requirements

• Implement InputAction class for text input
• Support special characters and unicode
• Add IME show/hide methods
• Support keyboard event simulation (ENTER, BACKSPACE, etc)
• Handle text field focus

Files

• smartmonkey/exploration/action.py (add InputAction)
• smartmonkey/device/event_manager.py (add input methods)

Usage example

# Input text
InputAction(element=text_field, text="test@example.com")

# Press ENTER
KeyboardAction(key_code="ENTER")

# Backspace
KeyboardAction(key_code="BACKSPACE", count=5)

Acceptance Criteria

• InputAction for text entry
• Special character support
• Keyboard event simulation (ENTER, BACKSPACE, DEL)
• IME control (show/hide keyboard)
• Focus management