Remove quantity leftovers and unify cooldown UX across all item surfaces

Quantity cleanup:
- Remove quantity field from ResolvedInventoryItem, CompanionItem,
  and BlobbiShopModal's local interface
- Remove all quantity: Infinity assignments from item resolution
- Rename filterInventoryByAction to getItemsForAction with a
  cleaner signature (drop unused _storage parameter)
- Update barrel export and call sites
- Fix stale 'inventory' comments in blobbi-action-utils.ts

Cooldown UX consistency:
- Add Clock icon to dashboard ItemsTabContent (previously only
  showed dimmed opacity with no icon)
- Normalize shop modal button variant (outline, matching action
  modal style)
- All three item surfaces now share the same visual language:
  loading = spinner, cooldown = clock icon + disabled + muted

src/blobbi/actions/components/BlobbiActionInventoryModal.tsx

@@ -16,7 +16,7 @@ import type { BlobbiCompanion, BlobbonautProfile } from '@/blobbi/core/lib/blobb
 import { cn } from '@/lib/utils';
 
 import {
-  filterInventoryByAction,
+  getItemsForAction,
   previewStatChanges,
   previewMedicineForEgg,
   previewCleanForEgg,
@@ -58,7 +58,7 @@ export function BlobbiActionInventoryModal({
 
   // Get all available items for this action from the catalog.
   const availableItems = useMemo(() => {
-    return filterInventoryByAction([], action, { stage: companion.stage });
+    return getItemsForAction(action, { stage: companion.stage });
   }, [action, companion.stage]);
 
   // Check stage restrictions for this specific action

src/blobbi/actions/index.ts

@@ -136,7 +136,7 @@ export {
   clampStat,
   applyStat,
   applyItemEffects,
-  filterInventoryByAction,
+  getItemsForAction,
   decrementStorageItem,
   canUseAction,
   canUseDirectAction,

src/blobbi/actions/lib/blobbi-action-utils.ts

@@ -7,18 +7,18 @@ import { getShopItemById, getLiveShopItems } from '@/blobbi/shop/lib/blobbi-shop
 // ─── Action Types ─────────────────────────────────────────────────────────────
 
 /**
- * Actions that consume inventory items
+ * Item-based care actions (use a shop catalog item on the companion)
  */
 export type InventoryAction = 'feed' | 'play' | 'clean' | 'medicine';
 
 /**
- * Non-inventory actions that don't consume items
+ * Direct actions that don't use items
  * These actions affect stats directly without using shop items.
  */
 export type DirectAction = 'play_music' | 'sing';
 
 /**
- * All Blobbi actions (inventory + direct)
+ * All Blobbi actions (item-based + direct)
  */
 export type BlobbiAction = InventoryAction | DirectAction;
 
@@ -33,7 +33,7 @@ export const ACTION_TO_ITEM_TYPE: Record<InventoryAction, ShopItemCategory> = {
 };
 
 /**
- * Action metadata for UI display (inventory actions)
+ * Action metadata for UI display (item-based care actions)
  */
 export const ACTION_METADATA: Record<InventoryAction, { label: string; description: string; icon: string }> = {
   feed: {
@@ -59,7 +59,7 @@ export const ACTION_METADATA: Record<InventoryAction, { label: string; descripti
 };
 
 /**
- * Action metadata for direct actions (non-inventory)
+ * Action metadata for direct actions (no item required)
  */
 export const DIRECT_ACTION_METADATA: Record<DirectAction, { label: string; description: string; icon: string }> = {
   play_music: {
@@ -270,14 +270,13 @@ export function hasHappinessEffectForEgg(effects: ItemEffect | undefined): boole
   return effects.happiness !== undefined && effects.happiness !== 0;
 }
 
-// ─── Inventory Helpers ────────────────────────────────────────────────────────
+// ─── Item Helpers ─────────────────────────────────────────────────────────────
 
 /**
- * Resolved inventory item with shop metadata
+ * Resolved catalog item with shop metadata.
  */
 export interface ResolvedInventoryItem {
   itemId: string;
-  quantity: number;
   name: string;
   icon: string;
   type: ShopItemCategory;
@@ -285,7 +284,7 @@ export interface ResolvedInventoryItem {
 }
 
 /**
- * Options for filtering inventory by action
+ * Options for filtering catalog items by action.
  */
 export interface FilterInventoryOptions {
   /** Companion stage - used to filter items by egg-compatible effects */
@@ -294,7 +293,7 @@ export interface FilterInventoryOptions {
 
 /**
  * Get all available items for an action type from the shop catalog.
- * Items are abilities/tools — no inventory ownership is required.
+ * Items are reusable abilities — no ownership is required.
  * 
  * Filtering rules:
  * - Only items matching the action's item type are included
@@ -303,8 +302,7 @@ export interface FilterInventoryOptions {
  *   - medicine action: only items with health effect
  *   - clean action: only items with hygiene or happiness effect
  */
-export function filterInventoryByAction(
-  _storage: StorageItem[],
+export function getItemsForAction(
   action: InventoryAction,
   options: FilterInventoryOptions = {}
 ): ResolvedInventoryItem[] {
@@ -324,16 +322,15 @@ export function filterInventoryByAction(
     // For eggs, filter items by egg-compatible effects
     if (isEgg) {
       if (action === 'medicine' && !hasMedicineEffectForEgg(shopItem.effect)) {
-        continue; // Skip medicine without health effect
+        continue;
       }
       if (action === 'clean' && !hasHygieneEffectForEgg(shopItem.effect) && !hasHappinessEffectForEgg(shopItem.effect)) {
-        continue; // Skip hygiene items without hygiene or happiness effect
+        continue;
       }
     }
 
     result.push({
       itemId: shopItem.id,
-      quantity: Infinity,
       name: shopItem.name,
       icon: shopItem.icon,
       type: shopItem.type,
@@ -374,7 +371,7 @@ export function decrementStorageItem(
 // ─── Stage Restriction Helpers ────────────────────────────────────────────────
 
 /**
- * Stages that can use general inventory items (food, toys, hygiene)
+ * Stages that can use general items (food, toys, hygiene)
  */
 export const GENERAL_ITEM_USABLE_STAGES = ['baby', 'adult'] as const;
 
@@ -407,14 +404,14 @@ export const EGG_VISIBLE_ACTIONS: BlobbiAction[] = ['clean', 'medicine', 'play_m
 export const EGG_ALLOWED_ACTIONS = EGG_ALLOWED_INVENTORY_ACTIONS;
 
 /**
- * Check if a companion can use a specific inventory action.
+ * Check if a companion can use a specific item action.
  * 
  * Note: This function no longer hard-blocks egg actions at the domain layer.
  * UI visibility is handled separately by `isActionVisibleForStage()`.
  * The domain layer allows all actions - UI chooses what to show.
  */
 export function canUseAction(_companion: BlobbiCompanion, _action: InventoryAction): boolean {
-  // All stages can technically use all inventory actions at the domain layer.
+  // All stages can technically use all item actions at the domain layer.
   // UI filtering determines what actions are shown to users.
   return true;
 }
@@ -440,7 +437,7 @@ export function isActionVisibleForStage(stage: 'egg' | 'baby' | 'adult', action:
 }
 
 /**
- * Check if a companion can use general inventory items (feed, play, clean).
+ * Check if a companion can use general items (feed, play, clean).
  * Eggs cannot use food, toys, or hygiene items.
  * @deprecated Use canUseAction(companion, action) for action-specific checks
  */

src/blobbi/companion/interaction/types.ts

@@ -63,7 +63,7 @@ export function getItemCategoryForAction(actionId: CompanionMenuAction): ShopIte
 
 /**
  * Normalized item representation for the companion UI.
- * This is a simplified view of inventory items optimized for rendering.
+ * A simplified view of shop catalog items optimized for rendering.
  */
 export interface CompanionItem {
   /** Unique item ID (matches shop item ID) */
@@ -74,8 +74,6 @@ export interface CompanionItem {
   emoji: string;
   /** Item category */
   category: ShopItemCategory;
-  /** Quantity available in inventory */
-  quantity: number;
   /** Item effects when used */
   effect?: ItemEffect;
 }

src/blobbi/companion/interaction/useCompanionActionMenu.ts

@@ -112,7 +112,6 @@ function resolveItemsForAction(
       name: shopItem.name,
       emoji: shopItem.icon,
       category: shopItem.type,
-      quantity: Infinity,
       effect: shopItem.effect,
     });
   }

src/blobbi/shop/components/BlobbiShopModal.tsx

@@ -24,10 +24,9 @@ import { cn, formatCompactNumber } from '@/lib/utils';
 
 type TopTab = 'items' | 'shop';
 
-/** Resolved inventory item with shop metadata and usability info */
+/** Resolved catalog item with shop metadata and usability info */
 interface ResolvedInventoryItem extends ShopItem {
   itemId: string;
-  quantity: number;
   canUse: boolean;
   reason?: string;
 }
@@ -93,7 +92,6 @@ export function BlobbiShopModal({
       result.push({
         ...item,
         itemId: item.id,
-        quantity: Infinity,
         canUse: usability.canUse,
         reason: usability.reason,
       });
@@ -316,7 +314,7 @@ function ItemsGrid({ items, onUseItem, isUsingItem, usingItemId, onGoToShop: _on
               {item.canUse ? (
                 <Button
                   size="sm"
-                  variant={isCoolingDown ? 'ghost' : 'outline'}
+                  variant="outline"
                   className="w-full h-7 text-xs"
                   onClick={() => onUseItem(item)}
                   disabled={isDisabled}

src/pages/BlobbiPage.tsx

@@ -3,7 +3,7 @@ import { createPortal } from 'react-dom';
 import { Link, useNavigate } from 'react-router-dom';
 import { useSeoMeta } from '@unhead/react';
 import { nip19 } from 'nostr-tools';
-import { Egg, Moon, Sun, RefreshCw, Check, Plus, Camera, AlertTriangle, Footprints, Wrench, Theater, ExternalLink, Utensils, Gamepad2, Sparkles, Pill, Music, Mic, Loader2, HeartHandshake, Package, Target, Droplets, Heart, Zap } from 'lucide-react';
+import { Egg, Moon, Sun, RefreshCw, Check, Plus, Camera, AlertTriangle, Footprints, Wrench, Theater, ExternalLink, Utensils, Gamepad2, Sparkles, Pill, Music, Mic, Loader2, HeartHandshake, Package, Target, Droplets, Heart, Zap, Clock } from 'lucide-react';
 
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useProjectedBlobbiState } from '@/blobbi/core/hooks/useProjectedBlobbiState';
@@ -1990,8 +1990,7 @@ function ItemsTabContent({
               'group relative flex flex-col items-center justify-center gap-0.5 py-3 rounded-2xl transition-all duration-200',
               'hover:bg-accent/50 hover:-translate-y-0.5 active:scale-[0.93] active:translate-y-0',
               isThisUsing && 'bg-accent/40 -translate-y-0.5',
-              isCoolingDown && !isThisUsing && 'opacity-40',
-              isDisabled && !isThisUsing && !isCoolingDown && 'opacity-40 pointer-events-none',
+              isDisabled && !isThisUsing && 'opacity-40 pointer-events-none',
             )}
           >
             {/* Stat category indicator — top-right */}
@@ -2001,6 +2000,7 @@ function ItemsTabContent({
             <span className="text-4xl leading-none transition-transform duration-200 group-hover:scale-110">{item.icon}</span>
             <span className="text-[10px] text-muted-foreground font-medium truncate w-full text-center px-1">{item.name}</span>
             {isThisUsing && <Loader2 className="size-3 animate-spin text-primary absolute bottom-1" />}
+            {isCoolingDown && !isThisUsing && <Clock className="size-3 text-muted-foreground absolute bottom-1" />}
           </button>
         );
       })}