AI disclaimer: also on the cards and the results

The note now rides along with the content itself, not only with the
generation screens and the chat composer:

- Under every card in the study feed and in the review, mistakes and exam
  sessions (the activity slide's last element — below the card, and below
  the feedback panel once answered).
- On the results slides: the study results screen and the shared session
  results (review, mistakes, exam).

Navigation surfaces (library, deck lists, chat history, settings) still
carry no note — it belongs to the moment of generation and to the card
being answered, not to browsing (README decision 50 updated).

The phase-2 grading check now scopes its placement (the disclaimer right
under the graded box) since the same text legitimately appears several
times on a session page; three new checks cover the feed, the results
slide and the exam (59 checks). SW -> freezmo-v40.

components/SessionFeed.tsx

@@ -3,6 +3,7 @@
 import { useCallback, useEffect, useRef, useState } from "react";
 
 import { ActivityRenderer } from "@/components/activities";
+import { AiDisclaimer } from "@/components/AiDisclaimer";
 import { XIcon } from "@/components/icons";
 import { ReportQuestionButton } from "@/components/ReportQuestionButton";
 import { ProgressBar } from "@/components/ui";
@@ -216,6 +217,7 @@ export function SessionFeed({
                 isLast={itemIndex === total - 1}
                 nextLabel={itemIndex === total - 1 ? t("review.seeResults") : undefined}
               />
+              <AiDisclaimer />
             </div>
           </section>
         ))}
@@ -226,7 +228,12 @@ export function SessionFeed({
         >
           <div className="mx-auto flex min-h-full w-full max-w-xl flex-col gap-4 px-4 pb-24 pt-24 [justify-content:safe_center]">
             {finished
-              ? renderResults({ results, items, correct, total: attemptedTotal, score })
+              ? (
+                <>
+                  {renderResults({ results, items, correct, total: attemptedTotal, score })}
+                  <AiDisclaimer />
+                </>
+              )
               : (
                 <div className="card space-y-2 p-5 text-center">
                   <p className="text-sm font-semibold text-[var(--text-muted)]">{t("review.results")}</p>