fix: prevent conversion system from auto-unlocking all mana types on first tick

- Removed auto-unlock lines in gameStore.ts element regen loop and recovery room boost loop
- Added unlocked guard to skip locked elements during conversion processing
- Added regression test (bug-377) verifying only transference stays unlocked

Fixes #377

src/lib/game/stores/gameStore.ts

@@ -207,8 +207,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
           }
           // Apply net element regen to pools: produced - drained (component consumption)
           for (const [elem, entry] of Object.entries(conversionResult.rates)) {
-            if (entry.paused || !elements[elem]) continue;
-            if (!elements[elem].unlocked) elements[elem] = { ...elements[elem], unlocked: true };
+            if (entry.paused || !elements[elem] || !elements[elem].unlocked) continue;
             const netRate = elementRegen[elem];
             if (netRate === 0) continue;
             const delta = netRate * HOURS_PER_TICK;
@@ -320,8 +319,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
                 const regenDelta = Math.max(0, netBoostedRegen - netRawRegen);
                 rawMana = Math.min(rawMana + regenDelta * HOURS_PER_TICK, maxMana);
                 for (const [elem, entry] of Object.entries(conversionResult.rates)) {
-                  if (entry.paused || entry.finalRate <= 0 || !elements[elem]) continue;
-                  if (!elements[elem].unlocked) elements[elem] = { ...elements[elem], unlocked: true };
+                  if (entry.paused || entry.finalRate <= 0 || !elements[elem] || !elements[elem].unlocked) continue;
                   // Normal conversion already applied above; add only the 9× delta
                   elements[elem] = { ...elements[elem], current: Math.min(elements[elem].max, elements[elem].current + entry.finalRate * 9 * HOURS_PER_TICK) };
                 }