feat(assets): forum free-task depth, withdraw notices, share poster

Route forum essence/adopt/hot/score rewards through free-points day cap,
notify users on withdraw complete/reject, surface 海报分享 on single
share grid, and extend admin free-task keys for the remaining matrix.

inc/classes/class-aksrt-credits-earn.php

@@ -234,22 +234,14 @@ class AKSRT_Credits_Earn {
 		}
 	}
 
-	public function on_forum_topic_featured(int $topic_id, int $operator_id): void {
-		unset($operator_id);
-		$post = get_post($topic_id);
-		if (!$post || $post->post_type !== 'aksrt_forum_topic') {
-			return;
-		}
-		$user_id = (int) $post->post_author;
-		if ($user_id <= 0 || !class_exists('AKSRT_Points_Free')) {
-			return;
-		}
-		if (get_post_meta($topic_id, 'aksrt_credit_essence_rewarded', true)) {
-			return;
-		}
-		$granted = AKSRT_Points_Free::grant($user_id, 'bbs_essence', 0, ['type' => 'post', 'id' => $topic_id]);
-		if (!is_wp_error($granted) && $granted > 0) {
-			update_post_meta($topic_id, 'aksrt_credit_essence_rewarded', 1);
-		}
+	/**
+	 * Essence reward is owned by AKSRT_Forum::reward_essence() (free-day-cap).
+	 * Keep hook for external integrations only — do not double-grant.
+	 *
+	 * @param int $topic_id
+	 * @param int $author_or_operator Author id from forum (2nd arg) or operator.
+	 */
+	public function on_forum_topic_featured(int $topic_id, int $author_or_operator = 0): void {
+		unset($topic_id, $author_or_operator);
 	}
 }