fix: correct community-reported combat and strategy draft behavior

Guard lethal stuns against a replacement deployment; keep bard auras running
through stun; require an active Aegir bond for Clementia's strategy; allow
Compass SP to bypass recovery locks; and refresh Hidden Core gun mitigation
against current gun/spring companions. Set multiplayer strategy picks to 50s
and describe renderer fallback without diagnosing unsupported hardware.

Golden moves (full 285-scenario regeneration):
- roster-008: inactive Aegir no longer gains 18 strategy layers.
- boss-boss_4-solo: bard regeneration continues through stun.
- hidden-boss_9-pair: mitigation covers first hits/current companions.
- standin-07: hammer stun cannot follow an immediate revival deployment.
No ending-reason changes. Sources and report-by-report findings: DESIGN 28.25.

test/content/items.test.js

@@ -617,7 +617,7 @@ test('黄沙罗盘: initial SP +30 / +50; (萨尔贡) first skill end +30 SP; +
   u.skill.sp = 0;
   u.skill.activate('test', { free: true });
   u.skill.end('test');
-  close(u.skill.sp, 0, 'only the first skill end');
+  close(u.skill.sp, 3, 'only the first skill end gives 30; this cast still gives its own 3 through the lock');
   cover(A('6_07'), B('6_07'), A('2_04'), B('2_04'));
 });