fix(android): UX pass — pause stacking, timer, help content, achievement glyphs

BUG-1: pause_plugin — auto_resume_on_overlay system despawns PauseScreen
whenever any other ModalScrim becomes live; fixes Pause modal stacking on
top of Stats / Settings / Help / Achievements / Profile overlays opened
from the HUD menu while paused.

BUG-2: game_plugin — tick_elapsed_time skips the first delta_secs after
AppLifecycle::WillSuspend/Suspended so the Android post-resume frame spike
(equal to the full suspension duration) no longer inflates the in-game timer.

UX-2: help_plugin — Android build gets a touch-specific CONTROL_SECTIONS
(Tap / New Game / HUD buttons); desktop sections (Mouse, Keyboard drag,
Mode Launcher, Overlays) remain on non-Android builds only.

UX-3: achievement_plugin — replace \u{25CB} (○) and \u{2713} (✓) prefixes
with ASCII "- " / "+ "; both Geometric Shapes codepoints are absent from
FiraMono and rendered as the fallback letter "o".

Phase 8 work from previous session (already compiled, not yet committed):
hud_plugin — HUD visual hierarchy (Undo/Pause bright, nav buttons dim);
  menu popover — Help + Game Modes entries added (7 items total).
card_plugin — stock badge drops "·" prefix, shows plain count.
pause_plugin — Draw Mode segmented control (Draw 1 / Draw 3 explicit buttons).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

solitaire_engine/src/game_plugin.rs

@@ -11,6 +11,7 @@ use std::time::{SystemTime, UNIX_EPOCH};
 
 use bevy::prelude::*;
 use bevy::tasks::{futures_lite::future, AsyncComputeTaskPool, Task};
+use bevy::window::AppLifecycle;
 use chrono::Utc;
 use solitaire_core::game_state::{DrawMode, GameMode, GameState};
 use solitaire_core::pile::PileType;
@@ -200,6 +201,7 @@ impl Plugin for GamePlugin {
             .add_message::<crate::events::AchievementUnlockedEvent>()
             .add_message::<FoundationCompletedEvent>()
             .add_message::<InfoToastEvent>()
+            .add_message::<AppLifecycle>()
             .add_systems(
                 Update,
                 poll_pending_new_game_seed.before(GameMutation),
@@ -259,20 +261,37 @@ pub fn advance_elapsed(
 /// timer doesn't tick before the player commits to a deal; stops while
 /// the onboarding modal is visible so a new player's first-game time
 /// isn't inflated by reading the tutorial.
+///
+/// On Android the first frame after the app is resumed from background
+/// can carry a very large `delta_secs` equal to the entire suspension
+/// period. `skip_next_delta` is set to `true` on `WillSuspend` /
+/// `Suspended` so that frame's delta is dropped instead of applied.
+#[allow(clippy::too_many_arguments)]
 fn tick_elapsed_time(
     time: Res<Time>,
     mut game: ResMut<GameStateResource>,
     mut accumulator: Local<f32>,
+    mut skip_next_delta: Local<bool>,
     paused: Option<Res<crate::pause_plugin::PausedResource>>,
     home_screens: Query<(), With<crate::home_plugin::HomeScreen>>,
     onboarding_screens: Query<(), With<crate::onboarding_plugin::OnboardingScreen>>,
+    mut lifecycle: MessageReader<AppLifecycle>,
 ) {
+    for event in lifecycle.read() {
+        if matches!(event, AppLifecycle::WillSuspend | AppLifecycle::Suspended) {
+            *skip_next_delta = true;
+        }
+    }
     if paused.is_some_and(|p| p.0)
         || !home_screens.is_empty()
         || !onboarding_screens.is_empty()
     {
         return;
     }
+    if *skip_next_delta {
+        *skip_next_delta = false;
+        return;
+    }
     let is_won = game.0.is_won;
     advance_elapsed(
         &mut game.0.elapsed_seconds,