fix: discipline tab NaN display — correct statBonus.baseValue destructuring, rate-aware /sec labels, NaN guards

- Fix root cause: baseValue was undefined (destructured from definition
  instead of statBonus.baseValue), causing calculateStatBonus to produce NaN
- Remove hardcoded /sec suffix from stat bonus display; now detects rate
  vs flat stats using isRateStat() helper
- Fix computePerkCurrentEffect: perks only show /sec for actual rate stats
- Add NaN guards in DisciplineCard display layer as safety net
- Clean up DisciplinesTab UX (proper summary label, remove unused rawMana)

src/components/game/tabs/DisciplinesTab.tsx

@@ -16,7 +16,7 @@ import { useManaStore } from '@/lib/game/stores/manaStore';
 import { usePrestigeStore } from '@/lib/game/stores/prestigeStore';
 import clsx from 'clsx';
 import { DebugName } from '@/components/game/debug/debug-context';
-import { TICKS_PER_SECOND, computePerkCurrentEffect, computeTotalPerkBonusForStat } from './disciplines-utils';
+import { TICKS_PER_SECOND, computePerkCurrentEffect, computeTotalPerkBonusForStat, isRateStat } from './disciplines-utils';
 import type { ComputedPerkEffect } from './disciplines-utils';
 
 // ─── Attunement Tabs ─────────────────────────────────────────────────────────
@@ -56,13 +56,14 @@ const DisciplineCard: React.FC<DisciplineCardProps> = ({
 }) => {
   const {
     id, name, description, manaType, perks,
-    statBonus, baseValue, drainBase, difficultyFactor, scalingFactor,
+    statBonus, drainBase, difficultyFactor, scalingFactor,
     conversionRate, sourceManaTypes,
   } = definition;
 
   const displayXp = xp;
   const progressPercent = Math.min(displayXp / Math.max(1, concurrentLimit * 100), 100);
-  const activeStatBonus = calculateStatBonus(baseValue, displayXp, scalingFactor);
+  // statBonus.baseValue is the correct field — not a top-level baseValue
+  const activeStatBonus = calculateStatBonus(statBonus.baseValue, displayXp, scalingFactor);
   const drainPerSecond = calculateManaDrain(drainBase, displayXp, difficultyFactor) * TICKS_PER_SECOND;
 
   const elementDef = ELEMENTS[manaType];
@@ -134,14 +135,23 @@ const DisciplineCard: React.FC<DisciplineCardProps> = ({
       )}
 
       {/* Stat Bonus with Perk Total */}
-      <div className="mt-2 text-sm">
-        <strong>Stat Bonus:</strong> {activeStatBonus.toFixed(2)}/sec on {statBonusLabel}
-        {perkBonusTotal > 0 && (
-          <span className="text-green-400 ml-1">
-            ({statBonusTotal.toFixed(2)}/sec with perks)
-          </span>
-        )}
-      </div>
+      {(() => {
+        // NaN guard — if the calculation produced NaN, show a safe fallback
+        const safeActive = Number.isFinite(activeStatBonus) ? activeStatBonus : 0;
+        const safePerk = Number.isFinite(perkBonusTotal) ? perkBonusTotal : 0;
+        const safeTotal = Number.isFinite(statBonusTotal) ? statBonusTotal : 0;
+        const rateSuffix = isRateStat(statBonus.stat) ? '/sec' : '';
+        return (
+          <div className="mt-2 text-sm">
+            <strong>Stat Bonus:</strong> {safeActive.toFixed(2)}{rateSuffix} on {statBonusLabel}
+            {safePerk > 0 && (
+              <span className="text-green-400 ml-1">
+                ({safeTotal.toFixed(2)}{rateSuffix} with perks)
+              </span>
+            )}
+          </div>
+        );
+      })()}
 
       {/* Perks */}
       <div className="mt-2">
@@ -207,7 +217,7 @@ export const DisciplinesTab: React.FC = () => {
 
   const handleToggle = useCallback((id: string, paused: boolean) => {
     if (paused) {
-      activate(id, { rawMana, elements, signedPacts });
+      activate(id, { elements, signedPacts });
     } else {
       deactivate(id);
     }
@@ -261,7 +271,7 @@ export const DisciplinesTab: React.FC = () => {
 
       {/* Summary */}
       <div className="mt-4 flex flex-col sm:flex-row gap-2 text-sm text-gray-500">
-        <div>Active Disciple{activeIds.length}{activeIds.length === 1 ? '' : 's'} / {concurrentLimit}</div>
+        <div>Active Disciplines: {activeIds.length} / {concurrentLimit}</div>
         <div>Concurrent Limit: {concurrentLimit}</div>
       </div>
     </div>