Drop the assistant's ⋯ menu; hiding is a right-click

Its two entries were "Thu nhỏ", which the − button immediately to its left
already does, and "Ẩn vào cạnh phải". A drop-list whose real content is one
action, half of it duplicating its neighbour, is chrome — removed at the user's
request.

Nothing became unreachable: collapsing is the − button and the dot itself,
hiding is a right-click on the dot (already there, and named in its tooltip) or
now on the open panel's header too.

This is a deliberate deviation from the audit page, which asks for "'Ẩn trợ lý'
dời vào menu ⋯". check_design_parity records it as that rather than quietly
scoring it done — the item is relabelled and its detail says where the action
went. check_help_dock stopped reading the menu's contents and now exercises the
routes: − collapses, the dot carries a context menu, hide reaches the edge.

24/24 checkers pass.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tools/check_design_parity.py

@@ -17,7 +17,7 @@ from __future__ import annotations
 import os
 import sys␍
 
-sys.stdout.reconfigure(encoding="utf-8", errors="replace")
+sys.stdout.reconfigure(encoding="utf-8", errors="replace")
 from pathlib import Path
 
 REPO = Path(__file__).resolve().parent.parent
@@ -59,7 +59,7 @@ def build():
     _load_fonts()
     _freeze_schedulers()
 
-    _apply_theme(app)   # measure the styled window, not a bare one
+    _apply_theme(app)   # measure the styled window, not a bare one
     from cowork_local.config import AppConfig, CONFIG_DIR
     assert str(sandbox) in str(CONFIG_DIR), f"isolation failed: {CONFIG_DIR}"
 
@@ -295,9 +295,18 @@ def main() -> int:
     add("overlay-help-panel", "Rê chuột mới hiện chữ 'AI Assistant'",
         tr("help_agent.badge") in dock.launcher.text(), dock.launcher.text().strip())
     dock.launcher._set_open(False)
-    items = [a.text() for a in dock.more_btn.menu().actions()]
-    add("overlay-help-panel", "'Ẩn trợ lý' dời vào menu ⋯",
-        tr("help_agent.hide_tooltip") in items, str(items))
+    # The page asks for "'Ẩn trợ lý' dời vào menu ⋯". The user then asked for
+    # that menu to go: its two entries were "thu nhỏ", which the − button next
+    # to it already does, and "ẩn". Recorded as a deliberate deviation rather
+    # than quietly scored as done — the action itself moved to a right-click on
+    # the dot and on the panel header, so nothing became unreachable.
+    from PySide6.QtCore import Qt
+
+    has_menu = hasattr(dock, "more_btn")
+    by_right_click = dock.launcher.contextMenuPolicy() == Qt.CustomContextMenu
+    add("overlay-help-panel", "'Ẩn trợ lý' — menu ⋯ bỏ theo yêu cầu, nay chuột phải",
+        (not has_menu) and by_right_click,
+        "menu ⋯ đã bỏ theo yêu cầu — 'Ẩn' nay là chuột phải trên chấm/tiêu đề")
     add("overlay-help-panel", "2 trạng thái thường ngày", True, "đóng ↔ mở, ẩn hẳn là tuỳ chọn")
     dock._hide_to_edge()
     app.processEvents()