fix(dashboard): fix attributes overflow and improve tab distribution

Three critical fixes for dashboard layout:

**1. Fix Attributes Widget Overflow (style.css:1210)**
- Root cause: Default layout had attributes at w:1 but internal grid was 2 columns
- Widget was 1 dashboard column wide, but tried to display 2 internal columns
- Result: 2nd internal column overflowed off-screen to the right
- Fix: Internal grid already correct at 2 columns, just needed default layout fix

**2. Update Default Layout for Attributes (defaultLayout.js)**
- Changed attributes widget from w:1 to w:2 (full width in 2-column grid)
- Moved from x:1 (right column) to x:0 (left column, full width)
- Shifted from row 3 to row 4-5 (needs 2 rows height)
- Updated comment: now "full width, needs 2 columns for 3x2 grid"
- Shifted all scene widgets down by 1 row:
  - Calendar/Weather: row 5→6
  - Temperature/Clock: row 7→8
  - Location: row 9→10
  - Present Characters: row 11→12
- Mood stays at row 3 (left column only)

**3. Improve Multi-Tab Distribution (dashboardManager.js:725-779)**
- Status tab now contains user widgets ONLY (userInfo, stats, mood, attributes)
- Created new "Scene" tab for overflow scene widgets (calendar, weather, etc)
- Scene tab gets order:1, Social gets order:2, Inventory gets order:3
- Prioritizes character status on main tab instead of mixing with scene info

**Layout After Fix:**
```
Row 0: UserInfo (full width)
Row 1-2: UserStats (full width)
Row 3: UserMood (left column)
Row 4-5: UserAttributes (FULL WIDTH - 2 columns for 3x2 grid)
Row 6-7: Calendar + Weather
Row 8-9: Temperature + Clock
Row 10-11: Location
Row 12-14: Present Characters
```

**User-Reported Issues Fixed:**
✅ Attributes no longer overflow columns 3-5 off-screen
✅ Attributes widget properly sized at 2 dashboard columns wide
✅ Status tab prioritizes user widgets over scene info
✅ Scene widgets correctly overflow to separate "Scene" tab

Related: Dashboard v2, Epic 2, Phase 3.2

src/systems/dashboard/dashboardManager.js

@@ -722,19 +722,32 @@ export class DashboardManager {
         // Clear existing tabs
         this.dashboard.tabs = [];
 
-        // Create Status tab (user + scene)
-        const statusWidgets = [...groups.user, ...groups.scene];
-        if (statusWidgets.length > 0) {
+        // Create Status tab (user widgets ONLY - prioritized)
+        if (groups.user.length > 0) {
             this.dashboard.tabs.push({
                 id: 'tab-status',
                 name: 'Status',
                 icon: '📊',
                 order: 0,
-                widgets: statusWidgets
+                widgets: groups.user
             });
 
             // Auto-layout status widgets
-            this.gridEngine.autoLayout(statusWidgets, { preserveOrder: true });
+            this.gridEngine.autoLayout(groups.user, { preserveOrder: true });
+        }
+
+        // Create Scene/Info tab if there are scene widgets (overflow from Status)
+        if (groups.scene.length > 0) {
+            this.dashboard.tabs.push({
+                id: 'tab-scene',
+                name: 'Scene',
+                icon: '🌍',
+                order: 1,
+                widgets: groups.scene
+            });
+
+            // Auto-layout scene widgets
+            this.gridEngine.autoLayout(groups.scene, { preserveOrder: true });
         }
 
         // Create Social tab if there are social widgets
@@ -743,7 +756,7 @@ export class DashboardManager {
                 id: 'tab-social',
                 name: 'Social',
                 icon: '👥',
-                order: 1,
+                order: 2,
                 widgets: groups.social
             });
 
@@ -757,7 +770,7 @@ export class DashboardManager {
                 id: 'tab-inventory',
                 name: 'Inventory',
                 icon: '🎒',
-                order: 2,
+                order: 3,
                 widgets: groups.inventory
             });