chore: P1 - stage.dzcode.io to new more powerful VPS

[ZibanPirate]

this is part one of the migration:

• removed ./web/cloudflare workspace
• created a new workspace ./web-server: express server with Open-Graph functionalities
• update CD workflows to deploy frontend (./web and ./web-server) to cluster (example run)
• Removed lighthouse job from CD

Next steps:

• deploy ./api to stage chore: P2 deploy ./api stage to zcluster #655
• production deployment
• Cleanup of scripts and files we no longer need
• Optimization of ./web-server (rate limiting and such)

End goal

before:

• two cheap vps to deploy ./api, one for each environement
• two page apps in cloudflare to deploy ./web
• two cloudflare workers to handle SEO URLs
• SSL done through Cloudflare proxy (limited to one subdomain level, so can't do SSL for api.stage.dzcode.io, we had to rename it to api-stage.dzcode.io)

after:
we only ever need one VPS (zcluster; basically a VPS with a Rust server that handles infra stuff, you connect to via zcluster cli app)
Inside it we can define as many containers as we want, so:

• docker container for ./api (including postgress and meilisearch containers)
• docker container for ./web (also handles SEO)

a nice bonus, is we already have grafana monitoring setup for this server, so we can even replace/remove the analytics tools we have:

• sentry on ./api
• sentry on ./web
• Google Analytics on ./web
• lighthouse-ci on ./web

change:

• Bug fix
• New feature
• Other