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_engine/src/progress_plugin.rs

@@ -9,7 +9,7 @@ use std::path::PathBuf;
 
 use bevy::prelude::*;
 use solitaire_data::{
-    load_progress_from, progress_file_path, save_progress_to, xp_for_win, PlayerProgress,
+    PlayerProgress, load_progress_from, progress_file_path, save_progress_to, xp_for_win,
 };
 
 use crate::events::{GameWonEvent, XpAwardedEvent};
@@ -74,9 +74,7 @@ impl Plugin for ProgressPlugin {
             .add_message::<GameWonEvent>()
             .add_systems(
                 Update,
-                award_xp_on_win
-                    .after(GameMutation)
-                    .in_set(ProgressUpdate),
+                award_xp_on_win.after(GameMutation).in_set(ProgressUpdate),
             );
     }
 }
@@ -102,9 +100,10 @@ fn award_xp_on_win(
             });
         }
         if let Some(target) = &path.0
-            && let Err(e) = save_progress_to(target, &progress.0) {
-                warn!("failed to save progress: {e}");
-            }
+            && let Err(e) = save_progress_to(target, &progress.0)
+        {
+            warn!("failed to save progress: {e}");
+        }
     }
 }
 
@@ -183,7 +182,10 @@ mod tests {
     fn crossing_500_xp_fires_levelup_event() {
         let mut app = headless_app();
         // Pre-load 480 XP so a 75-XP win pushes us over the 500 boundary.
-        app.world_mut().resource_mut::<ProgressResource>().0.total_xp = 480;
+        app.world_mut()
+            .resource_mut::<ProgressResource>()
+            .0
+            .total_xp = 480;
 
         app.world_mut().write_message(GameWonEvent {
             score: 500,
@@ -233,7 +235,10 @@ mod tests {
     #[test]
     fn levelup_event_total_xp_matches_progress_resource() {
         let mut app = headless_app();
-        app.world_mut().resource_mut::<ProgressResource>().0.total_xp = 480;
+        app.world_mut()
+            .resource_mut::<ProgressResource>()
+            .0
+            .total_xp = 480;
 
         app.world_mut().write_message(GameWonEvent {
             score: 500,
@@ -255,13 +260,11 @@ mod tests {
         // score=0 in the event (Zen keeps score at 0), time=300 (no speed bonus),
         // undo_count=0 so no-undo bonus applies: expected 50+25=75.
         let mut app = headless_app();
-        app.world_mut()
-            .resource_mut::<GameStateResource>()
-            .0
-            .mode = solitaire_core::game_state::GameMode::Zen;
+        app.world_mut().resource_mut::<GameStateResource>().0.mode =
+            solitaire_core::game_state::GameMode::Zen;
 
         app.world_mut().write_message(GameWonEvent {
-            score: 0,        // Zen mode keeps score at 0
+            score: 0, // Zen mode keeps score at 0
             time_seconds: 300,
         });
         app.update();