feat: Complete dashboard system with PostgreSQL migration and enhanced item normalization

[rberrelleza]

🎉 Complete Dashboard System Implementation

This PR implements a comprehensive dashboard system for the Oktaco Shop check service with significant infrastructure improvements and enhanced data processing capabilities.

🚀 Major Features

📊 Complete Dashboard System

• Multi-tab interface: Overview, Orders, and Analytics tabs
• Real-time statistics: Total checks, revenue, average order value
• Interactive charts: Revenue trends with Chart.js integration
• Popular items tracking: Top 6 items with intelligent normalization

🗄️ Database Migration

• Migrated from AWS RDS to Kubernetes PostgreSQL using Bitnami Helm chart
• Persistent storage: 8Gi PVC for data persistence across pod restarts
• Simplified infrastructure: Removed RDS dependencies from Terraform
• Cloud-native deployment: Fully integrated with Okteto platform

🧠 Enhanced Item Normalization

• Leading digit removal: '1 horchata water' → 'horchata water'
• Case-insensitive grouping: 'TACOS' and 'tacos' are treated as the same item
• Pluralization handling: 'burritos' and 'burrito' are grouped together
• Smart edge case handling: Preserves words that naturally end in 's' (chips, beans, etc.)

🔧 Technical Improvements

🎨 UI/UX Fixes

• Fixed chart expansion bug: Added proper CSS constraints to prevent infinite growth
• Responsive design: Clean, modern interface with proper spacing
• Consistent sorting: Deterministic ordering for popular items display

🏗️ Infrastructure Updates

• Kubernetes-native PostgreSQL: Deployed via Bitnami Helm chart
• Service discovery: Uses postgresql service for database connections
• Environment variables: Proper configuration management
• Health checks: Robust deployment with --wait flag

📈 Data Processing

The normalization function handles complex item name variations:

def normalize_item_name(item_name: str) -> str:
    # Remove leading digits: "2 Burritos" -> "Burritos"
    normalized = re.sub(r'^\d+\s+', '', item_name).strip()
    
    # Case insensitive: "TACOS" -> "tacos"
    normalized = normalized.lower()
    
    # Handle pluralization: "burritos" -> "burrito"
    if len(normalized) > 3 and normalized.endswith('s'):
        # Smart pluralization logic...
    
    return normalized

🧪 Testing & Verification

• ✅ Chart expansion: Fixed and verified working
• ✅ Popular items sorting: All items showing with proper ordering
• ✅ Item normalization: Verified with test data
• ✅ Database migration: Successfully migrated with data integrity
• ✅ Cross-case handling: '2 Burritos' + '1 burrito' = 'burrito': 2

🌐 Live Demo

Dashboard available at: https://check-agent-qyd9q60ankgp.rberrelleza.fleets.okteto.ai/

📋 Files Changed

• check/main.py: Enhanced normalization logic and database integration
• check/database.py: New database models and connection handling
• check/public/: Complete dashboard frontend implementation
• okteto.yaml: Added PostgreSQL Helm chart deployment
• main.tf: Removed RDS resources, kept S3/SQS
• check/chart/: Updated Kubernetes manifests for new database

🎯 Impact

This implementation provides:

• Better user experience with intelligent item grouping
• Reduced infrastructure costs by eliminating RDS
• Improved maintainability with cloud-native PostgreSQL
• Enhanced analytics with comprehensive dashboard views
• Scalable architecture ready for production workloads

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Co-authored-by: Okteto AI Agent Fleets ai@okteto.com

[github-actions]

Your preview environment oktaco-pr-29 has been deployed.

Preview environment endpoints are available at:

• https://check-oktaco-pr-29.demo.okteto.dev
• https://kitchen-oktaco-pr-29.demo.okteto.dev
• https://menu-oktaco-pr-29.demo.okteto.dev
• https://check-oktaco-pr-29.demo.okteto.dev/docs
• https://github.com/okteto/external-resources-tf-aws
• https://s3.console.aws.amazon.com/s3/buckets/oktaco-pr-29-oktacoshop
• https://us-west-2.console.aws.amazon.com/sqs/v2/home?region=us-west-2#/queues