feat: Complete PII cleanup and fully automatic pipeline

🧹 PII Cleanup & Security:
- Remove all hardcoded domains (darknex.us, hndrx.co)
- Remove all hardcoded emails (admin@ references)
- Replace all personal info with environment variables
- Repository now 100% generic and reusable

🚀 Fully Automatic Pipeline:
- Pipeline now runs automatically develop → staging → production
- No manual intervention required for production promotions
- Auto-promotion triggers after successful tests
- All workflows use commit-specific image tags

🔧 Environment Variables:
- All manifests use ${VARIABLE_NAME} syntax
- All scripts source from .env file
- GitHub Actions use secrets for sensitive data
- Complete .env.example template provided

📚 Documentation:
- New comprehensive WORKFLOWS.md with pipeline details
- New PIPELINE_QUICK_REFERENCE.md for quick reference
- Updated all docs to use generic placeholders
- Added security/privacy section to README

🔐 Security Enhancements:
- Updated .gitignore for all sensitive files
- Created PII verification script (verify-pii-removal.sh)
- Created cleanup automation script (cleanup-pii.sh)
- Repository verified PII-free and production-ready

BREAKING: Repository now requires .env configuration
- Copy .env.example to .env and configure for your environment
- Set GitHub repository secrets for CI/CD workflows
- All deployments now use environment-specific configuration

README.md

@@ -13,9 +13,30 @@ A Kubernetes deployment of the classic 2048 game using Knative Serving with Isti
 
 ## Environments
 
-- **Development**: `https://2048-dev.wa.darknex.us`
-- **Staging**: `https://2048-staging.wa.darknex.us`
-- **Production**: `https://2048.wa.darknex.us`
+- **Development**: `https://${DEV_CANONICAL_DOMAIN}`
+- **Staging**: `https://${STAGING_CANONICAL_DOMAIN}`
+- **Production**: `https://${PROD_CANONICAL_DOMAIN}`
+
+## 🔄 CI/CD Pipeline
+
+This project features a fully automated CI/CD pipeline with:
+
+- **Automated Deployments**: Push to `develop` → auto-deploy to dev → auto-promote to staging → auto-promote to production
+- **Comprehensive Testing**: Smoke tests after each deployment
+- **Manual Controls**: Override any step with manual workflows
+- **Zero-downtime Deployments**: Blue-green strategy for production
+- **Security**: Webhook signature validation and environment-specific secrets
+
+### Quick Actions
+
+| Action | Command |
+|--------|---------|
+| 📊 Check Status | Actions → "Deployment Status Check" |
+| 🚀 Deploy to Prod | Actions → "Deploy to Production" (type "DEPLOY") |
+| ⬆️ Promote to Prod | Actions → "Promote to Production" (type "PROMOTE") |
+| 🧪 Run Tests | Actions → "Smoke Tests" |
+
+📚 **[Full Pipeline Documentation](docs/WORKFLOWS.md)** | 🚀 **[Quick Reference](docs/WORKFLOW_QUICK_REFERENCE.md)**
 
 ## Architecture
 
@@ -49,7 +70,7 @@ A Kubernetes deployment of the classic 2048 game using Knative Serving with Isti
 
 1. Clone the repository:
 ```bash
-git clone https://github.com/ghndrx/k8s-game-2048.git
+git clone https://github.com/${GITHUB_REPOSITORY}.git
 cd k8s-game-2048
 ```
 
@@ -75,36 +96,38 @@ kubectl apply -f manifests/staging/
 kubectl apply -f manifests/prod/
 ```
 
-## Project Structure
+## 📁 Project Structure
 
 ```
 k8s-game-2048/
 ├── README.md
 ├── Dockerfile
 ├── .github/
-│   └── workflows/
-│       ├── deploy-dev.yml
-│       ├── deploy-staging.yml
-│       └── deploy-prod.yml
+│   └── workflows/                    # CI/CD Pipeline
+│       ├── build-image.yml          # Build & push Docker images
+│       ├── deploy-dev.yml           # Development deployment
+│       ├── deploy-staging.yml       # Staging deployment  
+│       ├── deploy-prod.yml          # Production deployment
+│       ├── smoke-test.yml           # Post-deployment testing
+│       ├── auto-promote.yml         # Auto dev → staging promotion
+│       ├── promote-to-production.yml # Auto/manual staging → prod
+│       └── deployment-status.yml    # Environment health checks
+├── docs/
+│   ├── WORKFLOWS.md                 # Complete pipeline documentation
+│   ├── WORKFLOW_QUICK_REFERENCE.md  # Quick action guide
+│   ├── SETUP.md                     # Environment setup guide
+│   ├── ENVIRONMENT.md               # Environment configuration
+│   └── WEBHOOK_DEPLOYMENT.md        # Webhook handler setup
 ├── manifests/
-│   ├── dev/
-│   │   ├── namespace.yml
-│   │   ├── service.yml
-│   │   └── domain-mapping.yml
-│   ├── staging/
-│   │   ├── namespace.yml
-│   │   ├── service.yml
-│   │   └── domain-mapping.yml
-│   └── prod/
-│       ├── namespace.yml
-│       ├── service.yml
-│       └── domain-mapping.yml
-├── scripts/
-│   ├── setup-knative.sh
-│   ├── setup-kourier.sh
-│   └── deploy.sh
-└── src/
-    └── (2048 game files)
+│   ├── dev/                         # Development Kubernetes manifests
+│   ├── staging/                     # Staging Kubernetes manifests
+│   ├── prod/                        # Production Kubernetes manifests
+│   └── webhook/                     # Webhook handler manifests
+├── scripts/                         # Setup and deployment scripts
+└── src/                            # 2048 game source code
+    ├── index.html
+    ├── style.css
+    └── script.js
 ```
 
 ## Deployment
@@ -124,6 +147,35 @@ Each environment includes:
 - Request metrics via Knative
 - Custom domain health checks
 
+## 🔒 Security & Privacy
+
+This repository is **PII-free** and production-ready:
+
+- ✅ **No hardcoded emails, domains, or personal information**
+- ✅ **All configuration via environment variables**
+- ✅ **Secrets managed via `.env` files and GitHub secrets**
+- ✅ **Generic templates that work for any domain/organization**
+
+### Quick Setup
+
+1. **Clone and configure:**
+   ```bash
+   git clone https://github.com/${GITHUB_REPOSITORY}.git
+   cd k8s-game-2048
+   cp .env.example .env
+   # Edit .env with your actual values
+   ```
+
+2. **Apply your configuration:**
+   ```bash
+   ./scripts/cleanup-pii.sh
+   ```
+
+3. **Set GitHub secrets for CI/CD:**
+   - `DEV_DOMAIN`, `STAGING_DOMAIN`, `PROD_DOMAIN`
+   - `WEBHOOK_SECRET`
+   - Webhook URLs for each environment
+
 ## Contributing
 
 1. Fork the repository