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/ui_tooltip.rs

@@ -93,10 +93,7 @@ impl Plugin for UiTooltipPlugin {
     fn build(&self, app: &mut App) {
         app.init_resource::<TooltipState>()
             .add_systems(Startup, spawn_tooltip_overlay)
-            .add_systems(
-                Update,
-                (track_tooltip_hover, show_or_hide_tooltip).chain(),
-            );
+            .add_systems(Update, (track_tooltip_hover, show_or_hide_tooltip).chain());
     }
 }
 
@@ -222,10 +219,7 @@ fn spawn_tooltip_overlay(
 /// reveal delay.
 fn track_tooltip_hover(
     time: Res<Time>,
-    interactions: Query<
-        (Entity, &Interaction, Option<&Tooltip>),
-        Changed<Interaction>,
-    >,
+    interactions: Query<(Entity, &Interaction, Option<&Tooltip>), Changed<Interaction>>,
     mut state: ResMut<TooltipState>,
 ) {
     for (entity, interaction, tooltip) in &interactions {
@@ -407,9 +401,9 @@ mod tests {
     /// `app.update()`. Mirrors the helper in `ui_modal::tests` and
     /// `hud_plugin::tests`.
     fn set_manual_time_step(app: &mut App, secs: f32) {
-        app.insert_resource(TimeUpdateStrategy::ManualDuration(
-            Duration::from_secs_f32(secs),
-        ));
+        app.insert_resource(TimeUpdateStrategy::ManualDuration(Duration::from_secs_f32(
+            secs,
+        )));
     }
 
     /// Reads the current overlay visibility. Panics if the singleton is
@@ -440,18 +434,12 @@ mod tests {
     fn spawn_hovered_tooltip(app: &mut App, label: &'static str) -> Entity {
         let id = app
             .world_mut()
-            .spawn((
-                Node::default(),
-                Interaction::Hovered,
-                Tooltip::new(label),
-            ))
+            .spawn((Node::default(), Interaction::Hovered, Tooltip::new(label)))
             .id();
         // Mark the Interaction Changed by re-inserting it. `Changed`
         // requires component mutation since the previous tick; spawn
         // already counts, but a follow-up insert is the explicit signal.
-        app.world_mut()
-            .entity_mut(id)
-            .insert(Interaction::Hovered);
+        app.world_mut().entity_mut(id).insert(Interaction::Hovered);
         id
     }
 
@@ -536,9 +524,7 @@ mod tests {
 
         // Unhover. `track_tooltip_hover` clears the state on the next
         // tick because the entity transitions Hovered → None.
-        app.world_mut()
-            .entity_mut(target)
-            .insert(Interaction::None);
+        app.world_mut().entity_mut(target).insert(Interaction::None);
         app.update();
 
         assert!(
@@ -590,12 +576,18 @@ mod tests {
     #[test]
     fn tooltip_should_show_respects_delay() {
         // delay == 0 ("Instant"): any elapsed (including zero) shows.
-        assert!(tooltip_should_show(0.0, 0.0), "instant delay must show on first tick");
+        assert!(
+            tooltip_should_show(0.0, 0.0),
+            "instant delay must show on first tick"
+        );
         assert!(tooltip_should_show(0.5, 0.0));
 
         // Standard non-zero delay.
         assert!(!tooltip_should_show(0.4, 0.5), "elapsed < delay must hide");
-        assert!(tooltip_should_show(0.5, 0.5), "elapsed == delay must show (boundary)");
+        assert!(
+            tooltip_should_show(0.5, 0.5),
+            "elapsed == delay must show (boundary)"
+        );
         assert!(tooltip_should_show(0.6, 0.5), "elapsed > delay must show");
 
         // Larger delay (max-end of the slider).