fix(golemancy): reconcile spec vs code discrepancies (issue #326)

- D-SLOT-01: Verified slot cap of 7 matches spec §2.2 (no change needed)
- D-COMB-03: Implement AoE damage distribution for Sand/Shadowglass frames
- D-COMB-01: Reconcile armor pierce formula to spire-combat spec §9.4 (dmg × (1 + armorPierce))
- D-CIRC-01: Fix Simple Logic Circuit summon cost from raw to earth mana
- D-ENCHANT-03: Add dual_attunement unlockRequirement to all golem enchantments
- D-CORE-01/02: Add Guardian Core runtime override mechanism for guardian-specific mana

Also increased test timeouts for module import tests that timeout in full suite runs.

src/components/game/tabs/golemancy/GolemancyComponents.test.ts

@@ -110,15 +110,15 @@ describe('computeGolemStats', () => {
 
     const stats = computeGolemStats(design);
 
-    // basic core: 10 earth, earth frame: 5 raw, simple circuit: 3 raw
+    // basic core: 10 earth, earth frame: 5 raw, simple circuit: 3 earth (spec §6.1)
     const rawCosts = stats.totalSummonCost.filter(c => c.type === 'raw');
     const earthCosts = stats.totalSummonCost.filter(c => c.type === 'element' && c.element === 'earth');
 
     const totalRaw = rawCosts.reduce((sum, c) => sum + c.amount, 0);
     const totalEarth = earthCosts.reduce((sum, c) => sum + c.amount, 0);
 
-    expect(totalRaw).toBe(8); // 5 + 3
-    expect(totalEarth).toBe(10);
+    expect(totalRaw).toBe(5); // earth frame only
+    expect(totalEarth).toBe(13); // basic core 10 + simple circuit 3
   });
 });
 
@@ -140,7 +140,7 @@ describe('canAffordGolemDesign', () => {
       selectedSpells: [],
     };
 
-    // basic core: 10 earth, earth frame: 5 raw, simple circuit: 3 raw
+    // basic core: 10 earth, earth frame: 5 raw, simple circuit: 3 earth (spec §6.1)
     const result = canAffordGolemDesign(design, 100, {
       earth: { current: 50, max: 100, unlocked: true },
     });
@@ -164,7 +164,7 @@ describe('canAffordGolemDesign', () => {
       selectedSpells: [],
     };
 
-    // Need 8 raw total (5 + 3), only have 3
+    // Need 5 raw total (earth frame only, circuit uses earth mana now), only have 3
     const result = canAffordGolemDesign(design, 3, {
       earth: { current: 50, max: 100, unlocked: true },
     });