chore: rename *Live layer exports to *layer convention (Effect v4)

[guidefari]

Context

Effect v4 migration guide recommends naming layers layer (e.g. Logger.layer) instead of v3's Default or Live naming.

Currently ~74 exports in apps/vps/src follow the old *ServiceLive naming convention.

What to do

Rename all *ServiceLive exports to follow the layer convention per https://github.com/Effect-TS/effect-smol/blob/main/migration/services.md

Example:

// before
export const ReleaseServiceLive = Layer.succeed(...)

// after  
export const ReleaseServiceLayer = Layer.succeed(...)
// or co-locate as static on class: ReleaseService.layer

Update all import sites accordingly.

Files affected

All service files in apps/vps/src/services/ and apps/vps/src/runtime/services.ts.

Notes

• This is cosmetic/convention only — no runtime behaviour changes
• Core migration (Context.Tag → Context.Service) is already done
• Consider co-locating layers as static properties on service classes for better cohesion

[linear]

OPS-92