fix: 处理 Copilot 二轮 review 的 10 条评论

- BrowserView: 即使 host 在白名单，GUI 自身 origin 永不给 allow-same-origin（裸 host 条目覆盖所有端口时可提权）
- intercept: revealInExplorer 相对路径经 resolveSidebarPath 解析后再 revealPaths（交付物路径是相对的）
- intercept: ctx.betterSidebar 改为 ctx.get（#357 纤维链读取约定）
- FileTree/EditorHost/TreePanel/tabs: 把 revealed 贯通到树行渲染 + 高亮类 + scrollIntoView（此前高亮永不渲染）
- state.revealPaths: 重建祖先目录时保留前导分隔符（POSIX/UNC 此前目录永远折叠）
- state.schedulePersist: 仅活动会话写入全局宽度（targeted open 不再用非活动会话的过期宽度覆盖拖拽值）
- browser.probe: GET 回退显式取消 body（否则流式/大响应挂住 socket）
- terminal-font: leading generic 前只放 symbols-only 字体；fully-patched 放 generic 后（避免 hijack 度量字体）
- sidebar.module.css: 恢复拖拽反馈（#130 的 silent resize 与 PR 描述冲突，取 HEAD）
- Sidebar: 剩余 4 处 ctx.betterSidebar 改 ctx.get
- tests: 补 revealPaths/iframeSandboxFor/terminal-font 回归测试 + EditorHost/FileTree 测试补 revealed prop

src/client/TreePanel.tsx

@@ -45,6 +45,7 @@ export function TreePanel(props: {
   sessionId: string
   cwd: string | undefined
   expanded: string[]
+  revealed: string[]
   onToggle: (path: string) => void
   onOpenFile: (path: string) => void
   /** File context-menu "open in a new tab" (passed through to FileTree). */
@@ -63,7 +64,7 @@ export function TreePanel(props: {
    *  at a fixed width. */
   full?: boolean
 }) {
-  const { sessionId, cwd, expanded, onToggle, onOpenFile, onOpenFileNewTab, onOpenFileSide, openWithTargets, openWithPinned, openWithSsh, onOpenWith, onToggleOpenWithPin, onReferenceFile, full } = props
+  const { sessionId, cwd, expanded, revealed, onToggle, onOpenFile, onOpenFileNewTab, onOpenFileSide, openWithTargets, openWithPinned, openWithSsh, onOpenWith, onToggleOpenWithPin, onReferenceFile, full } = props
   const [query, setQuery] = useState('')
   const [results, setResults] = useState<{ matches: string[]; truncated: boolean } | null>(null)
   const [error, setError] = useState<string | null>(null)
@@ -221,6 +222,7 @@ export function TreePanel(props: {
           sessionId={sessionId}
           cwd={cwd}
           expanded={expanded}
+          revealed={revealed}
           onToggle={onToggle}
           onOpenFile={onOpenFile}
           onOpenFileNewTab={onOpenFileNewTab}