feat: Complete JTBD-aligned bakery dashboard redesign

Implements comprehensive dashboard redesign based on Jobs To Be Done methodology
focused on answering: "What requires my attention right now?"

## Backend Implementation

### Dashboard Service (NEW)
- Health status calculation (green/yellow/red traffic light)
- Action queue prioritization (critical/important/normal)
- Orchestration summary with narrative format
- Production timeline transformation
- Insights calculation and consequence prediction

### API Endpoints (NEW)
- GET /dashboard/health-status - Overall bakery health indicator
- GET /dashboard/orchestration-summary - What system did automatically
- GET /dashboard/action-queue - Prioritized tasks requiring attention
- GET /dashboard/production-timeline - Today's production schedule
- GET /dashboard/insights - Key metrics (savings, inventory, waste, deliveries)

### Enhanced Models
- PurchaseOrder: Added reasoning, consequence, reasoning_data fields
- ProductionBatch: Added reasoning, reasoning_data fields
- Enables transparency into automation decisions

## Frontend Implementation

### API Hooks (NEW)
- useBakeryHealthStatus() - Real-time health monitoring
- useOrchestrationSummary() - System transparency
- useActionQueue() - Prioritized action management
- useProductionTimeline() - Production tracking
- useInsights() - Glanceable metrics

### Dashboard Components (NEW)
- HealthStatusCard: Traffic light indicator with checklist
- ActionQueueCard: Prioritized actions with reasoning/consequences
- OrchestrationSummaryCard: Narrative of what system did
- ProductionTimelineCard: Chronological production view
- InsightsGrid: 2x2 grid of key metrics

### Main Dashboard Page (REPLACED)
- Complete rewrite with mobile-first design
- All sections integrated with error handling
- Real-time refresh and quick action links
- Old dashboard backed up as DashboardPage.legacy.tsx

## Key Features

### Automation-First
- Shows what orchestrator did overnight
- Builds trust through transparency
- Explains reasoning for all automated decisions

### Action-Oriented
- Prioritizes tasks over information display
- Clear consequences for each action
- Large touch-friendly buttons

### Progressive Disclosure
- Shows 20% of info that matters 80% of time
- Expandable details when needed
- No overwhelming metrics

### Mobile-First
- One-handed operation
- Large touch targets (min 44px)
- Responsive grid layouts

### Trust-Building
- Narrative format ("I planned your day")
- Reasoning inputs transparency
- Clear status indicators

## User Segments Supported

1. Solo Bakery Owner (Primary)
   - Simple health indicator
   - Action checklist (max 3-5 items)
   - Mobile-optimized

2. Multi-Location Owner
   - Multi-tenant support (existing)
   - Comparison capabilities
   - Delegation ready

3. Enterprise/Central Bakery (Future)
   - Network topology support
   - Advanced analytics ready

## JTBD Analysis Delivered

Main Job: "Help me quickly understand bakery status and know what needs my intervention"

Emotional Jobs Addressed:
- Feel in control despite automation
- Reduce daily anxiety
- Feel competent with technology
- Trust system as safety net

Social Jobs Addressed:
- Demonstrate professional management
- Avoid being bottleneck
- Show sustainability

## Technical Stack

Backend: Python, FastAPI, SQLAlchemy, PostgreSQL
Frontend: React, TypeScript, TanStack Query, Tailwind CSS
Architecture: Microservices with circuit breakers

## Breaking Changes

- Complete dashboard page rewrite (old version backed up)
- New API endpoints require orchestrator service deployment
- Database migrations needed for reasoning fields

## Migration Required

Run migrations to add new model fields:
- purchase_orders: reasoning, consequence, reasoning_data
- production_batches: reasoning, reasoning_data

## Documentation

See DASHBOARD_REDESIGN_SUMMARY.md for complete implementation details,
JTBD analysis, success metrics, and deployment guide.

BREAKING CHANGE: Dashboard page completely redesigned with new data structures

services/production/app/models/production.py

@@ -131,7 +131,18 @@ class ProductionBatch(Base):
     quality_notes = Column(Text, nullable=True)
     delay_reason = Column(String(255), nullable=True)
     cancellation_reason = Column(String(255), nullable=True)
-    
+
+    # JTBD Dashboard: Reasoning and context for user transparency
+    reasoning = Column(Text, nullable=True)  # Why this batch was scheduled (e.g., "Based on wedding order #1234")
+    reasoning_data = Column(JSON, nullable=True)  # Structured reasoning data
+    # reasoning_data structure: {
+    #   "trigger": "forecast" | "order" | "inventory" | "manual",
+    #   "forecast_id": "uuid",
+    #   "orders_fulfilled": [{"id": "uuid", "customer": "Maria's Bakery", "quantity": 100}],
+    #   "demand_score": 0-100,
+    #   "scheduling_priority_reason": "High demand + VIP customer"
+    # }
+
     # Timestamps
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
@@ -178,6 +189,8 @@ class ProductionBatch(Base):
             "quality_notes": self.quality_notes,
             "delay_reason": self.delay_reason,
             "cancellation_reason": self.cancellation_reason,
+            "reasoning": self.reasoning,
+            "reasoning_data": self.reasoning_data,
             "created_at": self.created_at.isoformat() if self.created_at else None,
             "updated_at": self.updated_at.isoformat() if self.updated_at else None,
             "completed_at": self.completed_at.isoformat() if self.completed_at else None,