fix: improve inventory and quests widget resizing at narrow widths

Resolved issues where inventory and quests widgets didn't properly adapt
to narrow desktop widths (~296px, 2 columns):
- Assets tab was cut off (1/3 off-screen)
- Widgets shrank vertically instead of expanding
- Sub-tabs overflowed horizontally

Changes:

1. Widget onResize Handlers (inventoryWidget.js, questsWidget.js):
   - Strengthened inventory onResize to call render() for full re-layout
   - Added quests onResize handler with re-render + width-aware styling
   - Both apply responsive CSS classes at narrow widths

2. Increased maxAutoSize for 2-Column Layouts:
   - inventoryWidget.js: h: 6 → h: 8 (creates expansion headroom)
   - questsWidget.js: h: 5 → h: 7 (user requested height)
   - Previously: defaultSize = maxAutoSize → zero expansion possible
   - Now: defaultSize < maxAutoSize → widgets can expand vertically

3. Added Missing Quests Widget Container Styles (style.css):
   - Added .rpg-quests-widget and .rpg-quests-views flex container styles
   - Proper overflow handling (hidden on container, auto on content)
   - Prevents Assets tab horizontal cut-off

4. Implemented Compact Mode CSS (style.css):
   - .rpg-inventory-compact: reduced padding, icon-only sub-tabs
   - Applied when widget width < 6 grid units
   - Prevents 3 sub-tabs from overflowing 296px container
   - Icons remain visible, labels hidden for space savings

5. Grid Engine Boolean Return (gridEngine.js):
   - setContainerWidth now returns true/false for column changes
   - Allows DashboardManager to optimize resize handling

Why This Works:
- Auto-layout expansion requires defaultSize < maxAutoSize for headroom
- Flex container styles prevent overflow with proper scroll handling
- Compact mode makes sub-tabs fit within narrow containers
- onResize handlers ensure internal layouts adapt to dimension changes

Fixes: Assets tab cut-off, vertical shrinking, sub-tab overflow at ~296px

src/systems/dashboard/widgets/questsWidget.js

@@ -395,8 +395,19 @@ export function registerQuestsWidget(registry, dependencies) {
         description: 'Quest tracking with main and optional quests',
         category: 'quests',
         minSize: { w: 2, h: 4 },
-        defaultSize: { w: 2, h: 5 },
-        maxAutoSize: { w: 3, h: 7 },
+        // Column-aware sizing: compact on mobile, spacious on desktop
+        defaultSize: (columns) => {
+            if (columns <= 2) {
+                return { w: 2, h: 4 }; // Mobile: 2×4 (full width, compact)
+            }
+            return { w: 2, h: 5 }; // Desktop: 2×5 (default)
+        },
+        maxAutoSize: (columns) => {
+            if (columns <= 2) {
+                return { w: 2, h: 7 }; // Mobile: 2×7 max (increased for expansion headroom)
+            }
+            return { w: 3, h: 7 }; // Desktop: 3×7 max (can expand)
+        },
         requiresSchema: false,
 
         render(container, config = {}) {
@@ -436,6 +447,24 @@ export function registerQuestsWidget(registry, dependencies) {
         // Called when widget data changes externally
         onDataUpdate(container, config = {}) {
             this.render(container, config);
+        },
+
+        // Called when widget is resized
+        onResize(container, newW, newH) {
+            // Re-render widget to update layout for new dimensions
+            this.render(container, this.config || {});
+
+            // Apply width-aware styling
+            const widget = container.querySelector('.rpg-quests-widget');
+            if (widget) {
+                if (newW >= 3) {
+                    // Wide layout: constrain title width
+                    widget.classList.add('rpg-quests-wide');
+                } else {
+                    // Narrow layout: allow title to flex
+                    widget.classList.remove('rpg-quests-wide');
+                }
+            }
         }
     });
 }