fix: Object.values null safety + Docker dev build

- Change Dockerfile to use development build (better error messages)
- Add || {} fallbacks to all Object.values() calls accessing state
- Fixes "Cannot convert undefined or null to object" browser error during SSR/hydration
- Verified TypeScript compilation and Next.js build successful

Files modified:
- Dockerfile
- src/app/page.tsx
- src/components/game/tabs/StatsTab.tsx
- src/components/game/StatsTab/LoopStatsSection.tsx
- src/components/game/StatsTab/ElementStatsSection.tsx
- src/components/game/tabs/AttunementsTab.tsx
- src/components/game/tabs/GolemancyTab.tsx
- src/lib/game/effects.ts
- src/lib/game/utils/combat-utils.ts
- src/lib/game/crafting-loot.ts
- src/components/game/LootInventory/LootInventoryDisplay.tsx
- src/components/game/LootInventory/index.tsx
- src/components/game/crafting/EnchantmentDesigner/utils.ts

src/components/game/tabs/AttunementsTab.tsx

@@ -232,7 +232,7 @@ export function AttunementsTab({ store }: AttunementsTabProps) {
           </p>
           <div className="flex flex-wrap gap-2">
             {availableCategories.map(cat => {
-              const attunement = Object.values(ATTUNEMENTS_DEF).find(a => 
+              const attunement = Object.values(ATTUNEMENTS_DEF || {}).find(a => 
                 a.skillCategories.includes(cat) && attunements[a.id]?.active
               );
               return (

src/components/game/tabs/EquipmentTab.tsx

@@ -202,7 +202,7 @@ export function EquipmentTab() {
 
   // Check if an instance is currently equipped
   const isEquipped = (instanceId: string): boolean =>
-    Object.values(equippedInstances).includes(instanceId);
+    Object.values(equippedInstances || {}).includes(instanceId);
 
   // Get all slots an item type can be equipped to
   const getEquippableSlots = (typeId: string): EquipmentSlot[] => {
@@ -243,7 +243,7 @@ export function EquipmentTab() {
           title="Equipped Gear"
           action={
             <span className="text-xs text-[var(--text-muted)]">
-              {Object.values(equippedInstances).filter(Boolean).length} / {EQUIPMENT_SLOTS.length} slots filled
+              {Object.values(equippedInstances || {}).filter(Boolean).length} / {EQUIPMENT_SLOTS.length} slots filled
             </span>
           }
         />
@@ -288,7 +288,7 @@ export function EquipmentTab() {
         <div className="grid grid-cols-2 sm:grid-cols-4 gap-3">
           <div className="p-3 bg-[var(--bg-sunken)]/50 rounded text-center">
             <div className="text-2xl font-bold text-[var(--mana-light)] font-[var(--font-mono)]">
-              {Object.values(equipmentInstances).length}
+              {Object.values(equipmentInstances || {}).length}
             </div>
             <div className="text-xs text-[var(--text-muted)]">Total Items</div>
           </div>
@@ -306,7 +306,7 @@ export function EquipmentTab() {
           </div>
           <div className="p-3 bg-[var(--bg-sunken)]/50 rounded text-center">
             <div className="text-2xl font-bold text-[var(--mana-stellar)] font-[var(--font-mono)]">
-              {Object.values(equipmentInstances).reduce(
+              {Object.values(equipmentInstances || {}).reduce(
                 (sum, inst) => sum + inst.enchantments.length,
                 0
               )}

src/components/game/tabs/GolemancyTab.tsx

@@ -35,7 +35,7 @@ export function GolemancyTab({ store }: GolemancyTabProps) {
     .map(([id]) => id);
   
   // Get all unlocked golems
-  const unlockedGolems = Object.values(GOLEMS_DEF).filter(golem => 
+  const unlockedGolems = Object.values(GOLEMS_DEF || {}).filter(golem => 
     isGolemUnlocked(golem.id, attunements, unlockedElements)
   );
   
@@ -293,7 +293,7 @@ export function GolemancyTab({ store }: GolemancyTabProps) {
               {unlockedGolems.map(golem => renderGolemCard(golem.id, true))}
               
               {/* Locked Golems */}
-              {Object.values(GOLEMS_DEF)
+              {Object.values(GOLEMS_DEF || {})
                 .filter(g => !isGolemUnlocked(g.id, attunements, unlockedElements))
                 .map(golem => renderGolemCard(golem.id, false))}
             </div>

src/components/game/tabs/SpellsTab.tsx

@@ -36,7 +36,7 @@ export function SpellsTab() {
     );
   }
   
-  for (const instanceId of Object.values(equippedInstances)) {
+  for (const instanceId of Object.values(equippedInstances || {})) {
     if (!instanceId) continue;
     const instance = equipmentInstances[instanceId];
     if (!instance) continue;

src/components/game/tabs/StatsTab.tsx

@@ -176,7 +176,7 @@ export function StatsTab() {
             <div className="space-y-2">
               <div className="flex justify-between text-sm">
                 <span className="text-gray-400">Unlocked Elements:</span>
-                <span className="text-green-300">{Object.values(elements).filter(e => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
+                <span className="text-green-300">{Object.values(elements || {}).filter((e: any) => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
               </div>
               <div className="flex justify-between text-sm">
                 <span className="text-gray-400">Elem. Crafting Bonus:</span>
@@ -298,7 +298,7 @@ export function StatsTab() {
           <Separator className="bg-gray-700 my-3" />
           <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
             <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-xl font-bold text-gray-300 game-mono">{Object.values(spells).filter(s => s.learned).length}</div>
+              <div className="text-xl font-bold text-gray-300 game-mono">{Object.values(spells || {}).filter((s: any) => s.learned).length}</div>
               <div className="text-xs text-gray-400">Spells Learned</div>
             </div>
             <div className="p-3 bg-gray-800/50 rounded text-center">