Implement Phase 1: Post-onboarding configuration system

This commit implements the first phase of the post-onboarding configuration
system based on JTBD analysis:

**1. Fixed Quality Standards Step Missing Next Button**
- Updated StepNavigation logic to enable Next button for optional steps
- Changed: disabled={(!canContinue && !canSkip) || isLoading}
- Quality step now always sets canContinue: true (since it's optional)
- Updated progress indicator to show "2+ recommended (optional)"
- Location: StepNavigation.tsx, QualitySetupStep.tsx

**2. Implemented Configuration Progress Widget**
A comprehensive dashboard widget that guides post-onboarding configuration:

Features:
- Real-time progress tracking (% complete calculation)
- Section-by-section status (Inventory, Suppliers, Recipes, Quality)
- Visual indicators: checkmarks for complete, circles for incomplete
- Minimum requirements vs recommended amounts
- Next action prompts ("Add at least 3 ingredients")
- Feature unlock notifications ("Purchase Orders unlocked!")
- Clickable sections that navigate to configuration pages
- Auto-hides when 100% configured

Location: ConfigurationProgressWidget.tsx (340 lines)
Integration: DashboardPage.tsx

**Configuration Logic:**
- Inventory: 3 minimum, 10 recommended
- Suppliers: 1 minimum, 3 recommended
- Recipes: 1 minimum, 3 recommended
- Quality: 0 minimum (optional), 2 recommended

**UX Improvements:**
- Clear orientation ("Complete Your Bakery Setup")
- Progress bar with percentage
- Next step call-to-action
- Visual hierarchy (gradient borders, icons, colors)
- Responsive design
- Loading states

**Technical Implementation:**
- React hooks: useMemo for calculations
- Real-time data fetching from inventory, suppliers, recipes, quality APIs
- Automatic progress recalculation on data changes
- Navigation integration with react-router
- i18n support for all text

**Files Created:**
- ConfigurationProgressWidget.tsx

**Files Modified:**
- StepNavigation.tsx - Fixed optional step button logic
- QualitySetupStep.tsx - Always allow continuing (optional step)
- DashboardPage.tsx - Added configuration widget

**Pending (Next Phases):**
- Phase 2: Recipe & Supplier Wizard Modals (multi-step forms)
- Phase 3: Recipe templates, bulk operations, configuration recovery

Build: ✅ Success (21.17s)
All TypeScript validations passed.

frontend/src/pages/app/DashboardPage.tsx

@@ -5,6 +5,7 @@ import { PageHeader } from '../../components/layout';
 import StatsGrid from '../../components/ui/Stats/StatsGrid';
 import RealTimeAlerts from '../../components/domain/dashboard/RealTimeAlerts';
 import { IncompleteIngredientsAlert } from '../../components/domain/dashboard/IncompleteIngredientsAlert';
+import { ConfigurationProgressWidget } from '../../components/domain/dashboard/ConfigurationProgressWidget';
 import PendingPOApprovals from '../../components/domain/dashboard/PendingPOApprovals';
 import TodayProduction from '../../components/domain/dashboard/TodayProduction';
 // Sustainability widget removed - now using stats in StatsGrid
@@ -426,6 +427,9 @@ const DashboardPage: React.FC = () => {
 
       {/* Dashboard Content - Main Sections */}
       <div className="space-y-6">
+        {/* 0. Configuration Progress Widget */}
+        <ConfigurationProgressWidget />
+
         {/* 1. Real-time Alerts */}
         <div data-tour="real-time-alerts">
           <RealTimeAlerts />