fix(engine,server): safe area clamp, analytics batch, achievement save order, daily rollover, replay validation, leaderboard opt-in (#56, #60, #61, #62, #66, #68)

- #66: Clamp safe-area insets to 25% of window height with warn!() on excess
- #68: Move fire_flush outside per-event loop in analytics (batch flush once)
- #56: Persist progress before marking reward_granted to prevent XP loss on crash
- #60: Add DateRolloverTimer + check_date_rollover system for midnight seed refresh
- #62: Add validate_header() in replay upload with mode/draw_mode allowlists
- #61: Restore two-query leaderboard opt-in check (SELECT then UPDATE); original
       queries already in .sqlx cache; EXISTS variant would require sqlx prepare

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

solitaire_data/src/achievements.rs

@@ -72,14 +72,11 @@ mod tests {
         let path = tmp_path("round_trip");
         let _ = fs::remove_file(&path);
 
-        let records = vec![
-            AchievementRecord::locked("first_win"),
-            {
-                let mut r = AchievementRecord::locked("century");
-                r.unlock(Utc::now());
-                r
-            },
-        ];
+        let records = vec![AchievementRecord::locked("first_win"), {
+            let mut r = AchievementRecord::locked("century");
+            r.unlock(Utc::now());
+            r
+        }];
         save_achievements_to(&path, &records).expect("save");
         let loaded = load_achievements_from(&path);
         assert_eq!(loaded.len(), 2);