Rewrite from Go + vanilla JS to Python (FastAPI) + React (TypeScript)

- Backend: Python 3.12 with FastAPI, SQLAlchemy, boto3
- Frontend: React 18 with TypeScript, Vite build tooling
- Updated Dockerfile for multi-stage Node + Python build
- Updated CI pipeline for Python backend
- Removed old Go code (cmd/, internal/, go.mod, go.sum)
- Updated README with new tech stack documentation

README.md

@@ -4,6 +4,14 @@
 
 Orchard is a centralized binary artifact storage system that provides content-addressable storage with automatic deduplication, flexible access control, and multi-format package support. Like an orchard that cultivates and distributes fruit, Orchard nurtures and distributes the products of software builds.
 
+## Tech Stack
+
+- **Backend**: Python 3.12 + FastAPI
+- **Frontend**: React 18 + TypeScript + Vite
+- **Database**: PostgreSQL 16
+- **Object Storage**: MinIO (S3-compatible)
+- **Cache**: Redis (for future use)
+
 ## Features
 
 ### Currently Implemented
@@ -17,8 +25,9 @@ Orchard is a centralized binary artifact storage system that provides content-ad
 - **S3-Compatible Backend** - Uses MinIO (or any S3-compatible storage) for artifact storage
 - **PostgreSQL Metadata** - Relational database for metadata, access control, and audit trails
 - **REST API** - Full HTTP API for all operations
-- **Web UI** - Browser-based interface for managing artifacts
+- **Web UI** - React-based interface for managing artifacts
 - **Docker Compose Setup** - Easy local development environment
+- **Helm Chart** - Kubernetes deployment with PostgreSQL, MinIO, and Redis subcharts
 
 ### API Endpoints
 
@@ -81,8 +90,29 @@ docker-compose down
 
 - **Web UI**: http://localhost:8080
 - **API**: http://localhost:8080/api/v1
+- **API Docs**: http://localhost:8080/docs
 - **MinIO Console**: http://localhost:9001 (user: `minioadmin`, pass: `minioadmin`)
 
+## Development
+
+### Backend (FastAPI)
+
+```bash
+cd backend
+pip install -r requirements.txt
+uvicorn app.main:app --reload --port 8080
+```
+
+### Frontend (React)
+
+```bash
+cd frontend
+npm install
+npm run dev
+```
+
+The frontend dev server proxies API requests to `localhost:8080`.
+
 ## Usage Examples
 
 ### Create a Grove
@@ -151,37 +181,41 @@ curl http://localhost:8080/api/v1/fruit/a3f5d8e12b4c67890abcdef1234567890abcdef1
 
 ```
 orchard/
-├── cmd/
-│   └── orchard-server/
-│       └── main.go              # Application entrypoint
-├── internal/
-│   ├── api/
-│   │   ├── handlers.go          # HTTP request handlers
-│   │   ├── router.go            # Route definitions
-│   │   └── static/              # Web UI assets
-│   │       ├── index.html
-│   │       ├── style.css
-│   │       └── app.js
-│   ├── config/
-│   │   └── config.go            # Configuration management
-│   ├── models/
-│   │   └── models.go            # Data structures
-│   └── storage/
-│       ├── database.go          # PostgreSQL operations
-│       └── s3.go                # S3 storage operations
+├── backend/
+│   ├── app/
+│   │   ├── __init__.py
+│   │   ├── config.py           # Pydantic settings
+│   │   ├── database.py         # SQLAlchemy setup
+│   │   ├── main.py             # FastAPI application
+│   │   ├── models.py           # SQLAlchemy models
+│   │   ├── routes.py           # API endpoints
+│   │   ├── schemas.py          # Pydantic schemas
+│   │   └── storage.py          # S3 storage layer
+│   └── requirements.txt
+├── frontend/
+│   ├── src/
+│   │   ├── components/         # React components
+│   │   ├── pages/              # Page components
+│   │   ├── api.ts              # API client
+│   │   ├── types.ts            # TypeScript types
+│   │   ├── App.tsx
+│   │   └── main.tsx
+│   ├── index.html
+│   ├── package.json
+│   ├── tsconfig.json
+│   └── vite.config.ts
+├── helm/
+│   └── orchard/                # Helm chart
 ├── migrations/
-│   └── 001_initial.sql          # Database schema
-├── Dockerfile                   # Multi-stage Docker build
-├── docker-compose.yml           # Local development stack
-├── config.yaml                  # Default configuration
-├── Makefile                     # Build automation
-├── go.mod                       # Go module definition
-└── go.sum                       # Dependency checksums
+│   └── 001_initial.sql         # Database schema
+├── Dockerfile                  # Multi-stage build (Node + Python)
+├── docker-compose.yml          # Local development stack
+└── .gitlab-ci.yml              # CI/CD pipeline
 ```
 
 ## Configuration
 
-Configuration can be provided via `config.yaml` or environment variables prefixed with `ORCHARD_`:
+Configuration is provided via environment variables prefixed with `ORCHARD_`:
 
 | Environment Variable | Description | Default |
 |---------------------|-------------|---------|
@@ -198,6 +232,27 @@ Configuration can be provided via `config.yaml` or environment variables prefixe
 | `ORCHARD_S3_ACCESS_KEY_ID` | S3 access key | - |
 | `ORCHARD_S3_SECRET_ACCESS_KEY` | S3 secret key | - |
 
+## Kubernetes Deployment
+
+### Using Helm
+
+```bash
+# Add Bitnami repo for dependencies
+helm repo add bitnami https://charts.bitnami.com/bitnami
+
+# Update dependencies
+cd helm/orchard
+helm dependency update
+
+# Install
+helm install orchard ./helm/orchard -n orchard --create-namespace
+
+# Install with custom values
+helm install orchard ./helm/orchard -f my-values.yaml
+```
+
+See `helm/orchard/values.yaml` for all configuration options.
+
 ## Database Schema
 
 ### Core Tables