Implement the in-game Help window as a 1:1 migration of uihelp.py's
HelpWindow (single-page: ENABLE_HELP_MULTIPAGE = 0 -> LoadDialogSinglePage).
- project/ui/help_ui.gd (new): loads the real helpwindow.py uiscript via
UiScript -> UiBuild; _relabel() resolves the <HELP_*>/<CLOSE> placeholders
(produced when UiManager has no locale callback) from the project Locale
table (en) with verbatim English fallbacks, covering the original script's
two duplicate help_02 rows (right/middle camera). open/close/toggle/is_open;
close_button -> close; ESC handled by the UiManager window stack.
- project/ui/system_menu_ui.gd: help_button changed from the placeholder toast
to close() + open_help(); adds const HelpUI, an injectable help_ui member,
_ensure_help() (lazy build, reuses the menu's ui/client/assets_root),
open_help(), toggle_help(); setup() gains an optional 6th arg (old 5-arg
callers unaffected).
- project/game_scene.gd: single elif in _unhandled_input — KEY_H without
ctrl/meta -> system_menu_ui.toggle_help() (Ctrl+H stays free for
/user_horse_ride).
- project/help_ui_test.gd (new): headless SceneTree test — helpwindow.py load,
19 verbatim help rows + taskbar labels bound and non-placeholder,
close_button text, rows() helper, close/open/toggle, ESC stack top,
SystemMenuUI.open_help() lazy build.
Tests: help_ui_test, system_menu_ui_test, gamescene_test, ui_test all PASS
(plus system_option_ui_test, char_status_ui_test). No build/ in this worktree
so C++ ctest not run (no C++ change). Real-server and visual (.sub textures)
not verified. Docs: CLIENT-GAP.md W3 row + increment 50 bullet;
CLIENT-GAP-FIX.md §8.3 status/改动/测试/验收 + C.5 batch record.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014yvAPqPivoY7vmBbzgqK4W
