chore(lint): clear the semantic .tsx backlog

Hand fixes for the findings --fix cannot touch, mirroring the fixes
already applied on the fe-docs feature branch (same file, same shape)
so its eventual rebase resolves cleanly:

- restore the return the no-confusing-void-expression autofix ate in
  useAbsentSnapshot (typed S | undefined; hook call kept for hook-order
  stability, undefined returned explicitly);
- re-type DOM queries the no-unnecessary-type-assertion autofix broke:
  getByRole<HTMLButtonElement>(...) generics instead of the removed
  as-casts (the eslint program and the client tsconfig aggregate
  disagree about these casts; the generic form satisfies both);
- justified eslint-disable for the deliberate legacy paths: keyCode 229
  IME-composition detection, execCommand clipboard fallbacks, lib.dom
  clipboard optionality, and the any-typed Reflect.get/this probes in
  test fakes;
- drop the dead react/no-danger directive (eslint-plugin-react is not
  loaded, so the rule never applied) keeping its shiki rationale;
- delete the tautological 'Z' comparison and the renameTarget null
  check already implied by renameBlocked;
- css-module non-null assertions replaced by type widening
  (Button className, TAG_CLASS Record) per the established pattern;
- misc: max-len comment wraps, void generic drop in the deferred test
  helper, unused type imports, floating selectWorkspace promises voided,
  member-delimiter newlines in inline type literals.

packages/client/ui-question/src/client/QuestionComposer.tsx

@@ -37,6 +37,8 @@ export function parseQuestionTitle(title: string): string {
 
 /** Return whether a textarea key event belongs to an active IME composition. */
 function isComposing(event: KeyboardEvent<HTMLTextAreaElement>): boolean {
+  // keyCode 229 is the legacy IME-composition signal engines emit without isComposing.
+  // eslint-disable-next-line @typescript-eslint/no-deprecated
   return event.nativeEvent.isComposing || event.nativeEvent.keyCode === 229
 }
 
@@ -61,7 +63,10 @@ function QuestionFlow({ pending }: { pending: PendingQuestion }) {
   })))
   const [busy, setBusy] = useState<'answer' | 'cancel' | null>(null)
   const [error, setError] = useState<string | null>(null)
+  // index stays in bounds (every setIndex site clamps) and drafts mirrors questions 1:1.
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
   const question = questions[index]!
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
   const draft = drafts[index]!
   const hasOptions = (question.options?.length ?? 0) > 0
 

packages/client/ui-question/tests/question-composer.spec.tsx

@@ -99,7 +99,7 @@ describe('QuestionComposer', () => {
       { id: 'detail', selected: [], custom: '要能独立排查线上问题' },
       { id: 'signals', selected: ['系统设计', '代码质量'] },
     ]))
-    expect((screen.getByRole('button', { name: '正在提交…' })).disabled).toBe(true)
+    expect(screen.getByRole<HTMLButtonElement>('button', { name: '正在提交…' }).disabled).toBe(true)
   })
 
   it('skips individual questions without discarding earlier answers', () => {
@@ -173,7 +173,7 @@ describe('QuestionComposer', () => {
     // Receipt rejection surfaces through the domain face's thrown message.
     fireEvent.click(screen.getByRole('button', { name: '放弃整组问题' }))
     expect(await screen.findByText('question cancellation rejected: bad-response')).toBeTruthy()
-    expect((screen.getByRole('button', { name: '跳过本题' })).disabled).toBe(false)
+    expect(screen.getByRole<HTMLButtonElement>('button', { name: '跳过本题' }).disabled).toBe(false)
 
     fireEvent.click(screen.getByRole('button', { name: '放弃整组问题' }))
     expect(await screen.findByText('第二次取消失败')).toBeTruthy()
@@ -199,7 +199,7 @@ describe('QuestionComposer', () => {
     fireEvent.click(screen.getByRole('checkbox', { name: '系统设计' }))
     fireEvent.click(screen.getByRole('button', { name: '提交' }))
     expect(await screen.findByText('网络中断')).toBeTruthy()
-    expect((screen.getByRole('button', { name: '提交' })).disabled).toBe(false)
+    expect(screen.getByRole<HTMLButtonElement>('button', { name: '提交' }).disabled).toBe(false)
 
     fireEvent.click(screen.getByRole('button', { name: '提交' }))
     expect(await screen.findByText('字符串错误')).toBeTruthy()