test(copilot): pin the blanking rule with a body staging cannot recover

CI runs the merge with staging, and staging's desktop PR (#5998) taught
`parseSpecialTagData` to recover a failed `<question>` body's prompt and render
it as text instead of returning null. That recovery lands before `classifyBody`
is ever consulted, so this fixture — whose quoted `</options>` sat inside its
`prompt` — stopped exercising the blanking rule and started asserting the
recovery. Merged, it rendered "A use </options> here? B" instead of "A  B".

Moving the quoted marker to a non-`prompt` field restores what the test is for:
a marker inside a JSON string must be blanked before the scan, or a broken
payload gets classified as literal text and its raw JSON is shown. A body with
no recoverable prompt reaches `discard` on both sides of the merge, matching the
prompt-less fixture the sibling test above already uses.

Behaviour is unchanged on either branch alone; only the fixture moved.

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

Author: j15z

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/special-tags/special-tags.test.ts

@@ -303,11 +303,16 @@ describe('parseSpecialTags with <question>', () => {
 
   it('drops that same payload even when its JSON quotes tag syntax', () => {
     // The marker scan must blank JSON strings the way the streaming path does.
-    // Scanning the raw body sees `</options>` inside the prompt, calls the span
-    // literal text, and renders the raw payload — the outcome `discard` exists
-    // to prevent.
+    // Scanning the raw body sees `</options>` inside the payload, calls the span
+    // literal text, and renders the raw JSON — the outcome `discard` exists to
+    // prevent.
+    //
+    // The quoted marker deliberately sits in a field OTHER than `prompt`: a
+    // recoverable prompt is surfaced as text before this path is reached, so a
+    // fixture carrying one would assert the recovery rather than the blanking
+    // this test exists for. Matches the prompt-less body used above.
     const { segments } = parseSpecialTags(
-      'A <question>[{"type":"single_select","prompt":"use </options> here?"}]</question> B',
+      'A <question>[{"type":"single_select","title":"use </options> here?"}]</question> B',
       false
     )
     expect(renderedText(segments)).toBe('A  B')