feat(agents): show AskUserQuestion as a question card (#1758)

The native Claude Code provider turned each AskUserQuestion question into a
permission request with only the option labels, shown in the permission
banner. Descriptions, headers, previews and multi-select were lost, and the
only way to give another answer was Skip, which tells Claude the user didn't
answer.

All questions now go out in one request carrying the full tool input, and
the conversation shows them as a card above the composer: each option with
its description, radio buttons or checkboxes for multi-select, an Other
choice with a text field, the option's preview beside the options on a wide
card (below them on a narrow one, sized to the tallest preview so hovering
never moves the options), number keys to pick, Esc to skip, and one Submit
for every answer.
Ordinary permission requests keep the banner, and Skip answers as before.

The answers go back in Claude Code's own format: question text to answer,
multi-select picks and Other text comma-joined, with an item that contains
the separator or a quote JSON-quoted so it reads back as one item.

Closes #1628

Co-authored-by: NealimeKenna <[email protected]>

src/platform/locales/text/en.json

@@ -51,6 +51,9 @@
   "Xdebug is not loaded in PHP {version}": "Xdebug is not loaded in PHP {version}",
   "{php} runs without Xdebug, so breakpoints are skipped. Install Xdebug 3 for this PHP or choose another PHP interpreter.": "{php} runs without Xdebug, so breakpoints are skipped. Install Xdebug 3 for this PHP or choose another PHP interpreter.",
   "Open PHP Settings": "Open PHP Settings",
+  "Type your answer": "Type your answer",
+  "Recommended": "Recommended",
+  "No preview": "No preview",
   "Running in the background": "Running in the background",
   "Couldn't stop the background task": "Couldn't stop the background task"
 }

src/platform/locales/text/zh.json

@@ -6417,6 +6417,9 @@
   "Xdebug is not loaded in PHP {version}": "PHP {version} 未加载 Xdebug",
   "{php} runs without Xdebug, so breakpoints are skipped. Install Xdebug 3 for this PHP or choose another PHP interpreter.": "{php} 运行时没有 Xdebug，断点会被跳过。请为此 PHP 安装 Xdebug 3，或选择其他 PHP 解释器。",
   "Open PHP Settings": "打开 PHP 设置",
+  "Type your answer": "输入你的回答",
+  "Recommended": "推荐",
+  "No preview": "无预览",
   "Running in the background": "后台运行中",
   "Couldn't stop the background task": "无法停止后台任务"
 }