CI/CD auto-deploy on push to main

[fpindej]

Task

Automate deployment so pushing to main triggers a build + deploy to the VPS.

Options

Option A: GitHub Actions + Docker Hub + webhook

1. GH Action builds and pushes fpindej/netrock-web image on push to main
2. Webhook or SSH triggers docker compose pull && docker compose up -d on VPS

Option B: GitHub Actions + SSH deploy

1. GH Action builds the image
2. SSH into VPS, pull, and restart

Option C: Watchtower

1. GH Action builds and pushes to Docker Hub
2. Watchtower on VPS auto-pulls new images

Current manual process

./scripts/deploy.sh [tag]  # builds linux/amd64, pushes to Docker Hub
# Then SSH to VPS:
cd /var/apps/netrock-cli && docker compose pull && docker compose up -d

Priority

Medium - manual deploy works fine for alpha, but automation prevents forgetting to deploy.