feat: define device methods natively on Appium::Driver (#1109)

Adds explicit `def_delegators :driver, ...` for device-layer methods
(lock/unlock, hide_keyboard, push_file, pull_file, background_app,
shake, press_keycode, ime_*, context_*, app_strings, install_app, etc.)
that were previously wired up only implicitly by
`extend ::Appium::Core::Device` via a static compatibility list in
ruby_lib_core (lib/appium_lib_core/device.rb:26-42).

Defining them here lets ruby_lib_core drop that list
(appium/ruby_lib_core#97), which every new bridge endpoint currently
has to be added to by hand.

Native `Appium::Driver#execute_driver` (driver.rb:711) continues to
win over the class-level delegator since Ruby redefines methods in
source order.

Author: aguspe

CHANGELOG.md

@@ -3,6 +3,9 @@ Commit based release not is [release_notes.md](./release_notes.md)
 
 Release tags are https://github.com/appium/ruby_lib/releases .
 
+## [Unreleased]
+- Define device methods (`lock`, `unlock`, `hide_keyboard`, `push_file`, `pull_file`, `background_app`, `shake`, etc.) natively on `Appium::Driver` via `def_delegators :driver`, replacing the implicit delegation previously set up by `extend ::Appium::Core::Device`. Paves the way for `ruby_lib_core` to drop its static compatibility list (appium/ruby_lib_core#97).
+
 ## 16.1.1 - 2025-12-28
 - Add deprecated mark for start_logs_broadcast/stop_logs_broadcast to use BiDi instead
 

lib/appium_lib/driver.rb

@@ -40,6 +40,33 @@ class Test < Result
 
 module Appium
   class Driver
+    extend Forwardable
+
+    # Methods forwarded to the underlying Appium::Core::Base::Driver instance
+    # (exposed via `#driver`). Previously these were wired up implicitly by
+    # `extend ::Appium::Core::Device` through a static compatibility list in
+    # `ruby_lib_core` (see appium/ruby_lib_core#97). Defining them here lets
+    # `ruby_lib_core` eventually drop that list.
+    CORE_BRIDGE_METHODS = %i[
+      take_element_screenshot save_viewport_screenshot
+      lock device_locked? unlock
+      hide_keyboard is_keyboard_shown
+      ime_activate ime_available_engines ime_active_engine ime_activated ime_deactivate
+      get_settings update_settings
+      within_context current_context available_contexts set_context
+      push_file pull_file pull_folder
+      keyevent press_keycode long_press_keycode
+      match_images_features find_image_occurrence get_images_similarity compare_images
+      app_strings background_app
+      install_app remove_app app_installed? activate_app terminate_app
+      app_state
+      stop_recording_screen stop_and_save_recording_screen
+      shake device_time
+      execute_cdp
+    ].freeze
+
+    def_delegators :driver, *CORE_BRIDGE_METHODS
+
     # @private
     class << self
       def convert_to_symbol(value)